654 lines
34 KiB
Plaintext
654 lines
34 KiB
Plaintext
unit EM.Old.SQLite3;
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{
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Simplified interface for SQLite.
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Updated for Sqlite 3 by Tim Anderson (tim@itwriting.com)
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Note: NOT COMPLETE for version 3, just minimal functionality
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Adapted from file created by Pablo Pissanetzky (pablo@myhtpc.net)
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which was based on SQLite.pas by Ben Hochstrasser (bhoc@surfeu.ch)
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}
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{$IFDEF FPC}
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{$MODE DELPHI}
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{$H+} (* use AnsiString *)
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{$PACKENUM 4} (* use 4-byte enums *)
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{$PACKRECORDS C} (* C/C++-compatible record packing *)
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{$ELSE}
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{$MINENUMSIZE 4} (* use 4-byte enums *)
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{$ENDIF}
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interface
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const
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{$IF Defined(MSWINDOWS)}
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SQLiteDLL = 'sqlite3.dll';
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{$ELSEIF Defined(DARWIN)}
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SQLiteDLL = 'libsqlite3.dylib';
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{$linklib libsqlite3}
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{$ELSEIF Defined(UNIX)}
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SQLiteDLL = 'sqlite3.so';
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{$IFEND}
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// Return values for sqlite3_exec() and sqlite3_step()
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const
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SQLITE_OK = 0; // Successful result
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(* beginning-of-error-codes *)
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SQLITE_ERROR = 1; // SQL error or missing database
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SQLITE_INTERNAL = 2; // An internal logic error in SQLite
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SQLITE_PERM = 3; // Access permission denied
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SQLITE_ABORT = 4; // Callback routine requested an abort
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SQLITE_BUSY = 5; // The database file is locked
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SQLITE_LOCKED = 6; // A table in the database is locked
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SQLITE_NOMEM = 7; // A malloc() failed
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SQLITE_READONLY = 8; // Attempt to write a readonly database
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SQLITE_INTERRUPT = 9; // Operation terminated by sqlite3_interrupt()
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SQLITE_IOERR = 10; // Some kind of disk I/O error occurred
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SQLITE_CORRUPT = 11; // The database disk image is malformed
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SQLITE_NOTFOUND = 12; // (Internal Only) Table or record not found
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SQLITE_FULL = 13; // Insertion failed because database is full
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SQLITE_CANTOPEN = 14; // Unable to open the database file
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SQLITE_PROTOCOL = 15; // Database lock protocol error
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SQLITE_EMPTY = 16; // Database is empty
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SQLITE_SCHEMA = 17; // The database schema changed
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SQLITE_TOOBIG = 18; // Too much data for one row of a table
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SQLITE_CONSTRAINT = 19; // Abort due to contraint violation
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SQLITE_MISMATCH = 20; // Data type mismatch
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SQLITE_MISUSE = 21; // Library used incorrectly
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SQLITE_NOLFS = 22; // Uses OS features not supported on host
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SQLITE_AUTH = 23; // Authorization denied
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SQLITE_FORMAT = 24; // Auxiliary database format error
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SQLITE_RANGE = 25; // 2nd parameter to sqlite3_bind out of range
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SQLITE_NOTADB = 26; // File opened that is not a database file
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SQLITE_ROW = 100; // sqlite3_step() has another row ready
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SQLITE_DONE = 101; // sqlite3_step() has finished executing
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SQLITE_INTEGER = 1;
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SQLITE_FLOAT = 2;
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SQLITE_TEXT = 3;
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SQLITE_BLOB = 4;
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SQLITE_NULL = 5;
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SQLITE_UTF8 = 1;
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SQLITE_UTF16 = 2;
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SQLITE_UTF16BE = 3;
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SQLITE_UTF16LE = 4;
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SQLITE_ANY = 5;
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SQLITE_STATIC {: TSQLite3Destructor} = Pointer(0);
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SQLITE_TRANSIENT {: TSQLite3Destructor} = Pointer(-1);
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type
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TSQLiteDB = Pointer;
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TSQLiteResult = ^PAnsiChar;
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TSQLiteStmt = Pointer;
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type
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PPAnsiCharArray = ^TPAnsiCharArray;
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TPAnsiCharArray = array[0 .. (MaxInt div SizeOf(PAnsiChar))-1] of PAnsiChar;
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TSQLite3Destructor = procedure(Ptr: Pointer); cdecl;
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type
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TSQLiteExecCallback = function(UserData: Pointer; NumCols: Integer; ColValues:
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PPAnsiCharArray; ColNames: PPAnsiCharArray): Integer; cdecl;
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TSQLiteBusyHandlerCallback = function(UserData: Pointer; P2: Integer): Integer; cdecl;
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//function prototype for define own collate
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TCollateXCompare = function(UserData: Pointer; Buf1Len: Integer; Buf1: Pointer;
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Buf2Len: Integer; Buf2: Pointer): Integer; cdecl;
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TSQLite3_Open = function(filename: PAnsiChar; var db: TSQLiteDB): Integer; cdecl;
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TSQLite3_Close = function(db: TSQLiteDB): Integer; cdecl;
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TSQLite3_Exec = function(db: TSQLiteDB; SQLStatement: PAnsiChar; CallbackPtr: TSQLiteExecCallback; UserData: Pointer; var ErrMsg: PAnsiChar): Integer; cdecl;
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TSQLite3_Version = function: PAnsiChar; cdecl;
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TSQLite3_ErrMsg = function(db: TSQLiteDB): PAnsiChar; cdecl;
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TSQLite3_ErrCode = function(db: TSQLiteDB): Integer; cdecl;
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TSQlite3_Free = procedure(P: PAnsiChar); cdecl;
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TSQLite3_GetTable = function(db: TSQLiteDB; SQLStatement: PAnsiChar; var ResultPtr: TSQLiteResult; var RowCount: Cardinal; var ColCount: Cardinal; var ErrMsg: PAnsiChar): Integer; cdecl;
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TSQLite3_FreeTable = procedure(Table: TSQLiteResult); cdecl;
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TSQLite3_Complete = function(P: PAnsiChar): Boolean; cdecl;
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TSQLite3_LastInsertRowID = function(db: TSQLiteDB): Int64; cdecl;
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TSQLite3_Interrupt = procedure(db: TSQLiteDB); cdecl;
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TSQLite3_BusyHandler = procedure(db: TSQLiteDB; CallbackPtr: TSQLiteBusyHandlerCallback; UserData: Pointer); cdecl;
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TSQLite3_BusyTimeout = procedure(db: TSQLiteDB; TimeOut: Integer); cdecl;
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TSQLite3_Changes = function(db: TSQLiteDB): Integer; cdecl;
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TSQLite3_TotalChanges = function(db: TSQLiteDB): Integer; cdecl;
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TSQLite3_Prepare = function(db: TSQLiteDB; SQLStatement: PAnsiChar; nBytes: Integer; var hStmt: TSqliteStmt; var pzTail: PAnsiChar): Integer; cdecl;
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TSQLite3_Prepare_v2 = function(db: TSQLiteDB; SQLStatement: PAnsiChar; nBytes: Integer; var hStmt: TSqliteStmt; var pzTail: PAnsiChar): Integer; cdecl;
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TSQLite3_ColumnCount = function(hStmt: TSqliteStmt): Integer; cdecl;
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TSQLite3_ColumnName = function(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar; cdecl;
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TSQLite3_ColumnDeclType = function(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar; cdecl;
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TSQLite3_Step = function(hStmt: TSqliteStmt): Integer; cdecl;
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TSQLite3_DataCount = function(hStmt: TSqliteStmt): Integer; cdecl;
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TSQLite3_ColumnBlob = function(hStmt: TSqliteStmt; ColNum: Integer): Pointer; cdecl;
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TSQLite3_ColumnBytes = function(hStmt: TSqliteStmt; ColNum: Integer): Integer; cdecl;
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TSQLite3_ColumnDouble = function(hStmt: TSqliteStmt; ColNum: Integer): Double; cdecl;
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TSQLite3_ColumnInt = function(hStmt: TSqliteStmt; ColNum: Integer): Integer; cdecl;
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TSQLite3_ColumnText = function(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar; cdecl;
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TSQLite3_ColumnType = function(hStmt: TSqliteStmt; ColNum: Integer): Integer; cdecl;
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TSQLite3_ColumnInt64 = function(hStmt: TSqliteStmt; ColNum: Integer): Int64; cdecl;
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TSQLite3_Finalize = function(hStmt: TSqliteStmt): Integer; cdecl;
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TSQLite3_Reset = function(hStmt: TSqliteStmt): Integer; cdecl;
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Tsqlite3_bind_blob = function(hStmt: TSqliteStmt; ParamNum: Integer;
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ptrData: Pointer; numBytes: Integer; ptrDestructor: TSQLite3Destructor): Integer; cdecl;
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Tsqlite3_bind_text = function(hStmt: TSqliteStmt; ParamNum: Integer;
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Text: PAnsiChar; numBytes: Integer; ptrDestructor: TSQLite3Destructor): Integer; cdecl;
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Tsqlite3_bind_double = function(hStmt: TSqliteStmt; ParamNum: Integer; Data: Double): Integer; cdecl;
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Tsqlite3_bind_int = function(hStmt: TSqLiteStmt; ParamNum: Integer; Data: Integer): Integer; cdecl;
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Tsqlite3_bind_int64 = function(hStmt: TSqliteStmt; ParamNum: Integer; Data: int64): Integer; cdecl;
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Tsqlite3_bind_null = function(hStmt: TSqliteStmt; ParamNum: Integer): Integer; cdecl;
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Tsqlite3_bind_parameter_index = function(hStmt: TSqliteStmt; zName: PAnsiChar): Integer; cdecl;
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Tsqlite3_enable_shared_cache = function(Value: Integer): Integer; cdecl;
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//user collate definiton
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TSQLite3_create_collation = function(db: TSQLiteDB; Name: PAnsiChar; eTextRep: Integer;
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UserData: Pointer; xCompare: TCollateXCompare): Integer; cdecl;
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//function SQLite3_Open(filename: PAnsiChar; var db: TSQLiteDB): Integer; cdecl; external SQLiteDLL name 'sqlite3_open';
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//function SQLite3_Close(db: TSQLiteDB): Integer; cdecl; external SQLiteDLL name 'sqlite3_close';
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//function SQLite3_Exec(db: TSQLiteDB; SQLStatement: PAnsiChar; CallbackPtr: TSQLiteExecCallback; UserData: Pointer; var ErrMsg: PAnsiChar): Integer; cdecl; external SQLiteDLL name 'sqlite3_exec';
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//function SQLite3_Version(): PAnsiChar; cdecl; external SQLiteDLL name 'sqlite3_libversion';
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//function SQLite3_ErrMsg(db: TSQLiteDB): PAnsiChar; cdecl; external SQLiteDLL name 'sqlite3_errmsg';
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//function SQLite3_ErrCode(db: TSQLiteDB): Integer; cdecl; external SQLiteDLL name 'sqlite3_errcode';
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//procedure SQlite3_Free(P: PAnsiChar); cdecl; external SQLiteDLL name 'sqlite3_free';
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//function SQLite3_GetTable(db: TSQLiteDB; SQLStatement: PAnsiChar; var ResultPtr: TSQLiteResult; var RowCount: Cardinal; var ColCount: Cardinal; var ErrMsg: PAnsiChar): Integer; cdecl; external SQLiteDLL name 'sqlite3_get_table';
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//procedure SQLite3_FreeTable(Table: TSQLiteResult); cdecl; external SQLiteDLL name 'sqlite3_free_table';
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//function SQLite3_Complete(P: PAnsiChar): boolean; cdecl; external SQLiteDLL name 'sqlite3_complete';
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//function SQLite3_LastInsertRowID(db: TSQLiteDB): int64; cdecl; external SQLiteDLL name 'sqlite3_last_insert_rowid';
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//procedure SQLite3_Interrupt(db: TSQLiteDB); cdecl; external SQLiteDLL name 'sqlite3_interrupt';
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//procedure SQLite3_BusyHandler(db: TSQLiteDB; CallbackPtr: TSQLiteBusyHandlerCallback; UserData: Pointer); cdecl; external SQLiteDLL name 'sqlite3_busy_handler';
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//procedure SQLite3_BusyTimeout(db: TSQLiteDB; TimeOut: Integer); cdecl; external SQLiteDLL name 'sqlite3_busy_timeout';
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//function SQLite3_Changes(db: TSQLiteDB): Integer; cdecl; external SQLiteDLL name 'sqlite3_changes';
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//function SQLite3_TotalChanges(db: TSQLiteDB): Integer; cdecl; external SQLiteDLL name 'sqlite3_total_changes';
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//function SQLite3_Prepare(db: TSQLiteDB; SQLStatement: PAnsiChar; nBytes: Integer; var hStmt: TSqliteStmt; var pzTail: PAnsiChar): Integer; cdecl; external SQLiteDLL name 'sqlite3_prepare';
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//function SQLite3_Prepare_v2(db: TSQLiteDB; SQLStatement: PAnsiChar; nBytes: Integer; var hStmt: TSqliteStmt; var pzTail: PAnsiChar): Integer; cdecl; external SQLiteDLL name 'sqlite3_prepare_v2';
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//function SQLite3_ColumnCount(hStmt: TSqliteStmt): Integer; cdecl; external SQLiteDLL name 'sqlite3_column_count';
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//function SQLite3_ColumnName(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar; cdecl; external SQLiteDLL name 'sqlite3_column_name';
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//function SQLite3_ColumnDeclType(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar; cdecl; external SQLiteDLL name 'sqlite3_column_decltype';
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//function SQLite3_Step(hStmt: TSqliteStmt): Integer; cdecl; external SQLiteDLL name 'sqlite3_step';
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//function SQLite3_DataCount(hStmt: TSqliteStmt): Integer; cdecl; external SQLiteDLL name 'sqlite3_data_count';
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//
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//function SQLite3_ColumnBlob(hStmt: TSqliteStmt; ColNum: Integer): Pointer; cdecl; external SQLiteDLL name 'sqlite3_column_blob';
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//function SQLite3_ColumnBytes(hStmt: TSqliteStmt; ColNum: Integer): Integer; cdecl; external SQLiteDLL name 'sqlite3_column_bytes';
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//function SQLite3_ColumnDouble(hStmt: TSqliteStmt; ColNum: Integer): Double; cdecl; external SQLiteDLL name 'sqlite3_column_double';
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//function SQLite3_ColumnInt(hStmt: TSqliteStmt; ColNum: Integer): Integer; cdecl; external SQLiteDLL name 'sqlite3_column_int';
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//function SQLite3_ColumnText(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar; cdecl; external SQLiteDLL name 'sqlite3_column_text';
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//function SQLite3_ColumnType(hStmt: TSqliteStmt; ColNum: Integer): Integer; cdecl; external SQLiteDLL name 'sqlite3_column_type';
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//function SQLite3_ColumnInt64(hStmt: TSqliteStmt; ColNum: Integer): Int64; cdecl; external SQLiteDLL name 'sqlite3_column_int64';
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//function SQLite3_Finalize(hStmt: TSqliteStmt): Integer; cdecl; external SQLiteDLL name 'sqlite3_finalize';
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//function SQLite3_Reset(hStmt: TSqliteStmt): Integer; cdecl; external SQLiteDLL name 'sqlite3_reset';
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function SQLite3_Open(filename: PAnsiChar; var db: TSQLiteDB): Integer;
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function SQLite3_Close(db: TSQLiteDB): Integer;
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function SQLite3_Exec(db: TSQLiteDB; SQLStatement: PAnsiChar; CallbackPtr: TSQLiteExecCallback; UserData: Pointer; var ErrMsg: PAnsiChar): Integer;
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function SQLite3_Version: PAnsiChar;
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function SQLite3_ErrMsg(db: TSQLiteDB): PAnsiChar;
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function SQLite3_ErrCode(db: TSQLiteDB): Integer;
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procedure SQlite3_Free(P: PAnsiChar);
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function SQLite3_GetTable(db: TSQLiteDB; SQLStatement: PAnsiChar; var ResultPtr: TSQLiteResult; var RowCount: Cardinal; var ColCount: Cardinal; var ErrMsg: PAnsiChar): Integer;
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procedure SQLite3_FreeTable(Table: TSQLiteResult);
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function SQLite3_Complete(P: PAnsiChar): boolean;
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function SQLite3_LastInsertRowID(db: TSQLiteDB): int64;
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procedure SQLite3_Interrupt(db: TSQLiteDB);
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procedure SQLite3_BusyHandler(db: TSQLiteDB; CallbackPtr: TSQLiteBusyHandlerCallback; UserData: Pointer);
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procedure SQLite3_BusyTimeout(db: TSQLiteDB; TimeOut: Integer);
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function SQLite3_Changes(db: TSQLiteDB): Integer;
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function SQLite3_TotalChanges(db: TSQLiteDB): Integer;
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function SQLite3_Prepare(db: TSQLiteDB; SQLStatement: PAnsiChar; nBytes: Integer; var hStmt: TSqliteStmt; var pzTail: PAnsiChar): Integer;
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function SQLite3_Prepare_v2(db: TSQLiteDB; SQLStatement: PAnsiChar; nBytes: Integer; var hStmt: TSqliteStmt; var pzTail: PAnsiChar): Integer;
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function SQLite3_ColumnCount(hStmt: TSqliteStmt): Integer;
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function SQLite3_ColumnName(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar;
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function SQLite3_ColumnDeclType(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar;
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function SQLite3_Step(hStmt: TSqliteStmt): Integer;
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function SQLite3_DataCount(hStmt: TSqliteStmt): Integer;
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function SQLite3_ColumnBlob(hStmt: TSqliteStmt; ColNum: Integer): Pointer;
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function SQLite3_ColumnBytes(hStmt: TSqliteStmt; ColNum: Integer): Integer;
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function SQLite3_ColumnDouble(hStmt: TSqliteStmt; ColNum: Integer): Double;
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function SQLite3_ColumnInt(hStmt: TSqliteStmt; ColNum: Integer): Integer;
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function SQLite3_ColumnText(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar;
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function SQLite3_ColumnType(hStmt: TSqliteStmt; ColNum: Integer): Integer;
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function SQLite3_ColumnInt64(hStmt: TSqliteStmt; ColNum: Integer): Int64;
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function SQLite3_Finalize(hStmt: TSqliteStmt): Integer;
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function SQLite3_Reset(hStmt: TSqliteStmt): Integer;
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//
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// In the SQL strings input to sqlite3_prepare() and sqlite3_prepare16(),
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// one or more literals can be replace by a wildcard "?" or ":N:" where
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// N is an Integer. These value of these wildcard literals can be set
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// using the routines listed below.
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//
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// In every case, the first parameter is a Pointer to the sqlite3_stmt
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// structure returned from sqlite3_prepare(). The second parameter is the
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// index of the wildcard. The first "?" has an index of 1. ":N:" wildcards
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// use the index N.
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//
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// The fifth parameter to sqlite3_bind_blob(), sqlite3_bind_text(), and
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//sqlite3_bind_text16() is a destructor used to dispose of the BLOB or
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//text after SQLite has finished with it. If the fifth argument is the
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// special value SQLITE_STATIC, then the library assumes that the information
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// is in static, unmanaged space and does not need to be freed. If the
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// fifth argument has the value SQLITE_TRANSIENT, then SQLite makes its
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// own private copy of the data.
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//
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// The sqlite3_bind_* routine must be called before sqlite3_step() after
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// an sqlite3_prepare() or sqlite3_reset(). Unbound wildcards are interpreted
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// as NULL.
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//
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//function sqlite3_bind_blob(hStmt: TSqliteStmt; ParamNum: Integer;
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// ptrData: Pointer; numBytes: Integer; ptrDestructor: TSQLite3Destructor): Integer;
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//cdecl; external SQLiteDLL name 'sqlite3_bind_blob';
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//function sqlite3_bind_text(hStmt: TSqliteStmt; ParamNum: Integer;
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// Text: PAnsiChar; numBytes: Integer; ptrDestructor: TSQLite3Destructor): Integer;
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//cdecl; external SQLiteDLL name 'sqlite3_bind_text';
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//function sqlite3_bind_double(hStmt: TSqliteStmt; ParamNum: Integer; Data: Double): Integer;
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// cdecl; external SQLiteDLL name 'sqlite3_bind_double';
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//function sqlite3_bind_int(hStmt: TSqLiteStmt; ParamNum: Integer; Data: Integer): Integer;
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// cdecl; external SQLiteDLL name 'sqlite3_bind_int';
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//function sqlite3_bind_int64(hStmt: TSqliteStmt; ParamNum: Integer; Data: int64): Integer;
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// cdecl; external SQLiteDLL name 'sqlite3_bind_int64';
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//function sqlite3_bind_null(hStmt: TSqliteStmt; ParamNum: Integer): Integer;
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// cdecl; external SQLiteDLL name 'sqlite3_bind_null';
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//
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//function sqlite3_bind_parameter_index(hStmt: TSqliteStmt; zName: PAnsiChar): Integer;
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// cdecl; external SQLiteDLL name 'sqlite3_bind_parameter_index';
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//
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//function sqlite3_enable_shared_cache(Value: Integer): Integer; cdecl; external SQLiteDLL name 'sqlite3_enable_shared_cache';
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//
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////user collate definiton
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//function SQLite3_create_collation(db: TSQLiteDB; Name: PAnsiChar; eTextRep: Integer;
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// UserData: Pointer; xCompare: TCollateXCompare): Integer; cdecl; external SQLiteDLL name 'sqlite3_create_collation';
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function sqlite3_bind_blob(hStmt: TSqliteStmt; ParamNum: Integer;
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ptrData: Pointer; numBytes: Integer; ptrDestructor: TSQLite3Destructor): Integer;
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function sqlite3_bind_text(hStmt: TSqliteStmt; ParamNum: Integer;
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Text: PAnsiChar; numBytes: Integer; ptrDestructor: TSQLite3Destructor): Integer;
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function sqlite3_bind_double(hStmt: TSqliteStmt; ParamNum: Integer; Data: Double): Integer;
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function sqlite3_bind_int(hStmt: TSqLiteStmt; ParamNum: Integer; Data: Integer): Integer;
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function sqlite3_bind_int64(hStmt: TSqliteStmt; ParamNum: Integer; Data: int64): Integer;
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function sqlite3_bind_null(hStmt: TSqliteStmt; ParamNum: Integer): Integer;
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function sqlite3_bind_parameter_index(hStmt: TSqliteStmt; zName: PAnsiChar): Integer;
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function sqlite3_enable_shared_cache(Value: Integer): Integer;
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//user collate definiton
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function SQLite3_create_collation(db: TSQLiteDB; Name: PAnsiChar; eTextRep: Integer;
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UserData: Pointer; xCompare: TCollateXCompare): Integer;
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function SQLiteFieldType(SQLiteFieldTypeCode: Integer): AnsiString;
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function SQLiteErrorStr(SQLiteErrorCode: Integer): AnsiString;
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implementation
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uses
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SysUtils, Winapi.Windows;
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var
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_hSql3: THandle = 0;
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_SQLite3_Open: TSQLite3_Open = nil;
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_SQLite3_Close: TSQLite3_Close = nil;
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_SQLite3_Exec: TSQLite3_Exec = nil;
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_SQLite3_Version: TSQLite3_Version = nil;
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_SQLite3_ErrMsg: TSQLite3_ErrMsg = nil;
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_SQLite3_ErrCode: TSQLite3_ErrCode = nil;
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_SQlite3_Free: TSQlite3_Free = nil;
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_SQLite3_GetTable: TSQLite3_GetTable = nil;
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_SQLite3_FreeTable: TSQLite3_FreeTable = nil;
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_SQLite3_Complete: TSQLite3_Complete = nil;
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_SQLite3_LastInsertRowID: TSQLite3_LastInsertRowID = nil;
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_SQLite3_Interrupt: TSQLite3_Interrupt = nil;
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_SQLite3_BusyHandler: TSQLite3_BusyHandler = nil;
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_SQLite3_BusyTimeout: TSQLite3_BusyTimeout = nil;
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_SQLite3_Changes: TSQLite3_Changes = nil;
|
|
_SQLite3_TotalChanges: TSQLite3_TotalChanges = nil;
|
|
_SQLite3_Prepare: TSQLite3_Prepare = nil;
|
|
_SQLite3_Prepare_v2: TSQLite3_Prepare_v2 = nil;
|
|
_SQLite3_ColumnCount: TSQLite3_ColumnCount = nil;
|
|
_SQLite3_ColumnName: TSQLite3_ColumnName = nil;
|
|
_SQLite3_ColumnDeclType: TSQLite3_ColumnDeclType = nil;
|
|
_SQLite3_Step: TSQLite3_Step = nil;
|
|
_SQLite3_DataCount: TSQLite3_DataCount = nil;
|
|
_SQLite3_ColumnBlob: TSQLite3_ColumnBlob = nil;
|
|
_SQLite3_ColumnBytes: TSQLite3_ColumnBytes = nil;
|
|
_SQLite3_ColumnDouble: TSQLite3_ColumnDouble = nil;
|
|
_SQLite3_ColumnInt: TSQLite3_ColumnInt = nil;
|
|
_SQLite3_ColumnText: TSQLite3_ColumnText = nil;
|
|
_SQLite3_ColumnType: TSQLite3_ColumnType = nil;
|
|
_SQLite3_ColumnInt64: TSQLite3_ColumnInt64 = nil;
|
|
_SQLite3_Finalize: TSQLite3_Finalize = nil;
|
|
_SQLite3_Reset: TSQLite3_Reset = nil;
|
|
_sqlite3_bind_blob: Tsqlite3_bind_blob = nil;
|
|
_sqlite3_bind_text: Tsqlite3_bind_text = nil;
|
|
_sqlite3_bind_double: Tsqlite3_bind_double = nil;
|
|
_sqlite3_bind_int: Tsqlite3_bind_int = nil;
|
|
_sqlite3_bind_int64: Tsqlite3_bind_int64 = nil;
|
|
_sqlite3_bind_null: Tsqlite3_bind_null = nil;
|
|
_sqlite3_bind_parameter_index: Tsqlite3_bind_parameter_index = nil;
|
|
_sqlite3_enable_shared_cache: Tsqlite3_enable_shared_cache = nil;
|
|
_SQLite3_create_collation: TSQLite3_create_collation = nil;
|
|
function InitSqlite3Procedure: Boolean;
|
|
begin
|
|
if _hSql3 = 0 then
|
|
begin
|
|
_hSql3 := SafeLoadLibrary(SQLiteDLL);
|
|
if _hSql3 <> 0 then
|
|
begin
|
|
@_SQLite3_Open := GetProcAddress(_hSql3, 'sqlite3_open');
|
|
@_SQLite3_Close := GetProcAddress(_hSql3, 'sqlite3_close');
|
|
@_SQLite3_Exec := GetProcAddress(_hSql3, 'sqlite3_exec');
|
|
@_SQLite3_Version := GetProcAddress(_hSql3, 'sqlite3_libversion');
|
|
@_SQLite3_ErrMsg := GetProcAddress(_hSql3, 'sqlite3_errmsg');
|
|
@_SQLite3_ErrCode := GetProcAddress(_hSql3, 'sqlite3_errcode');
|
|
@_SQlite3_Free := GetProcAddress(_hSql3, 'sqlite3_free');
|
|
@_SQLite3_GetTable := GetProcAddress(_hSql3, 'sqlite3_get_table');
|
|
@_SQLite3_FreeTable := GetProcAddress(_hSql3, 'sqlite3_free_table');
|
|
@_SQLite3_Complete := GetProcAddress(_hSql3, 'sqlite3_complete');
|
|
@_SQLite3_LastInsertRowID := GetProcAddress(_hSql3, 'sqlite3_last_insert_rowid');
|
|
@_SQLite3_Interrupt := GetProcAddress(_hSql3, 'sqlite3_interrupt');
|
|
@_SQLite3_BusyHandler := GetProcAddress(_hSql3, 'sqlite3_busy_handler');
|
|
@_SQLite3_BusyTimeout := GetProcAddress(_hSql3, 'sqlite3_busy_timeout');
|
|
@_SQLite3_Changes := GetProcAddress(_hSql3, 'sqlite3_changes');
|
|
@_SQLite3_TotalChanges := GetProcAddress(_hSql3, 'sqlite3_total_changes');
|
|
@_SQLite3_Prepare := GetProcAddress(_hSql3, 'sqlite3_prepare');
|
|
@_SQLite3_Prepare_v2 := GetProcAddress(_hSql3, 'sqlite3_prepare_v2');
|
|
@_SQLite3_ColumnCount := GetProcAddress(_hSql3, 'sqlite3_column_count');
|
|
@_SQLite3_ColumnName := GetProcAddress(_hSql3, 'sqlite3_column_name');
|
|
@_SQLite3_ColumnDeclType := GetProcAddress(_hSql3, 'sqlite3_column_decltype');
|
|
@_SQLite3_Step := GetProcAddress(_hSql3, 'sqlite3_step');
|
|
@_SQLite3_DataCount := GetProcAddress(_hSql3, 'sqlite3_data_count');
|
|
@_SQLite3_ColumnBlob := GetProcAddress(_hSql3, 'sqlite3_column_blob');
|
|
@_SQLite3_ColumnBytes := GetProcAddress(_hSql3, 'sqlite3_column_bytes');
|
|
@_SQLite3_ColumnDouble := GetProcAddress(_hSql3, 'sqlite3_column_double');
|
|
@_SQLite3_ColumnInt := GetProcAddress(_hSql3, 'sqlite3_column_int');
|
|
@_SQLite3_ColumnText := GetProcAddress(_hSql3, 'sqlite3_column_text');
|
|
@_SQLite3_ColumnType := GetProcAddress(_hSql3, 'sqlite3_column_type');
|
|
@_SQLite3_ColumnInt64 := GetProcAddress(_hSql3, 'sqlite3_column_int64');
|
|
@_SQLite3_Finalize := GetProcAddress(_hSql3, 'sqlite3_finalize');
|
|
@_SQLite3_Reset := GetProcAddress(_hSql3, 'sqlite3_reset');
|
|
@_sqlite3_bind_blob := GetProcAddress(_hSql3, 'sqlite3_bind_blob');
|
|
@_sqlite3_bind_text := GetProcAddress(_hSql3, 'sqlite3_bind_text');
|
|
@_sqlite3_bind_double := GetProcAddress(_hSql3, 'sqlite3_bind_double');
|
|
@_sqlite3_bind_int := GetProcAddress(_hSql3, 'sqlite3_bind_int');
|
|
@_sqlite3_bind_int64 := GetProcAddress(_hSql3, 'sqlite3_bind_int64');
|
|
@_sqlite3_bind_null := GetProcAddress(_hSql3, 'sqlite3_bind_null');
|
|
@_sqlite3_bind_parameter_index := GetProcAddress(_hSql3, 'sqlite3_bind_parameter_index');
|
|
@_sqlite3_enable_shared_cache := GetProcAddress(_hSql3, 'sqlite3_enable_shared_cache');
|
|
@_SQLite3_create_collation := GetProcAddress(_hSql3, 'sqlite3_create_collation');
|
|
end;
|
|
end;
|
|
Result := _hSql3 <> 0;
|
|
end;
|
|
function SQLite3_Open(filename: PAnsiChar; var db: TSQLiteDB): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Open) then
|
|
Result := _SQLite3_Open(filename, db);
|
|
end;
|
|
function SQLite3_Close(db: TSQLiteDB): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Close) then
|
|
Result := _SQLite3_Close(db);
|
|
end;
|
|
function SQLite3_Exec(db: TSQLiteDB; SQLStatement: PAnsiChar; CallbackPtr: TSQLiteExecCallback; UserData: Pointer; var ErrMsg: PAnsiChar): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Exec) then
|
|
Result := _SQLite3_Exec(db, SQLStatement, CallbackPtr, UserData, ErrMsg);
|
|
end;
|
|
function SQLite3_Version: PAnsiChar;
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Version) then
|
|
_SQLite3_Version;
|
|
end;
|
|
function SQLite3_ErrMsg(db: TSQLiteDB): PAnsiChar;
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ErrMsg) then
|
|
_SQLite3_ErrMsg(db);
|
|
end;
|
|
function SQLite3_ErrCode(db: TSQLiteDB): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ErrCode) then
|
|
Result := _SQLite3_ErrCode(db);
|
|
end;
|
|
procedure SQlite3_Free(P: PAnsiChar);
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQlite3_Free) then
|
|
_SQlite3_Free(P);
|
|
end;
|
|
function SQLite3_GetTable(db: TSQLiteDB; SQLStatement: PAnsiChar; var ResultPtr: TSQLiteResult; var RowCount: Cardinal; var ColCount: Cardinal; var ErrMsg: PAnsiChar): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_GetTable) then
|
|
Result := _SQLite3_GetTable(db, SQLStatement, ResultPtr, RowCount, ColCount, ErrMsg);
|
|
end;
|
|
procedure SQLite3_FreeTable(Table: TSQLiteResult);
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_FreeTable) then
|
|
_SQLite3_FreeTable(Table);
|
|
end;
|
|
function SQLite3_Complete(P: PAnsiChar): boolean;
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Complete) then
|
|
Result := _SQLite3_Complete(P);
|
|
end;
|
|
function SQLite3_LastInsertRowID(db: TSQLiteDB): Int64;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_LastInsertRowID) then
|
|
Result := _SQLite3_LastInsertRowID(db);
|
|
end;
|
|
procedure SQLite3_Interrupt(db: TSQLiteDB);
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Interrupt) then
|
|
_SQLite3_Interrupt(db);
|
|
end;
|
|
procedure SQLite3_BusyHandler(db: TSQLiteDB; CallbackPtr: TSQLiteBusyHandlerCallback; UserData: Pointer);
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_BusyHandler) then
|
|
_SQLite3_BusyHandler(db, CallbackPtr, UserData);
|
|
end;
|
|
procedure SQLite3_BusyTimeout(db: TSQLiteDB; TimeOut: Integer);
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_BusyTimeout) then
|
|
_SQLite3_BusyTimeout(db, TimeOut);
|
|
end;
|
|
function SQLite3_Changes(db: TSQLiteDB): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Changes) then
|
|
Result := _SQLite3_Changes(db);
|
|
end;
|
|
function SQLite3_TotalChanges(db: TSQLiteDB): Integer;
|
|
begin
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_TotalChanges) then
|
|
Result := _SQLite3_TotalChanges(db);
|
|
end;
|
|
function SQLite3_Prepare(db: TSQLiteDB; SQLStatement: PAnsiChar; nBytes: Integer; var hStmt: TSqliteStmt; var pzTail: PAnsiChar): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Prepare) then
|
|
Result := _SQLite3_Prepare(db, SQLStatement, nBytes, hStmt, pzTail);
|
|
end;
|
|
function SQLite3_Prepare_v2(db: TSQLiteDB; SQLStatement: PAnsiChar; nBytes: Integer; var hStmt: TSqliteStmt; var pzTail: PAnsiChar): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Prepare_v2) then
|
|
Result := _SQLite3_Prepare_v2(db, SQLStatement, nBytes, hStmt, pzTail);
|
|
end;
|
|
function SQLite3_ColumnCount(hStmt: TSqliteStmt): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnCount) then
|
|
Result := _SQLite3_ColumnCount(hStmt);
|
|
end;
|
|
function SQLite3_ColumnName(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar;
|
|
begin
|
|
Result := nil;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnName) then
|
|
Result := _SQLite3_ColumnName(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_ColumnDeclType(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar;
|
|
begin
|
|
Result := nil;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnDeclType) then
|
|
Result := _SQLite3_ColumnDeclType(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_Step(hStmt: TSqliteStmt): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Step) then
|
|
Result := _SQLite3_Step(hStmt);
|
|
end;
|
|
function SQLite3_DataCount(hStmt: TSqliteStmt): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_DataCount) then
|
|
Result := _SQLite3_DataCount(hStmt);
|
|
end;
|
|
function SQLite3_ColumnBlob(hStmt: TSqliteStmt; ColNum: Integer): Pointer;
|
|
begin
|
|
Result := nil;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnBlob) then
|
|
Result := _SQLite3_ColumnBlob(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_ColumnBytes(hStmt: TSqliteStmt; ColNum: Integer): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnBytes) then
|
|
Result := _SQLite3_ColumnBytes(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_ColumnDouble(hStmt: TSqliteStmt; ColNum: Integer): Double;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnDouble) then
|
|
Result := _SQLite3_ColumnDouble(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_ColumnInt(hStmt: TSqliteStmt; ColNum: Integer): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnInt) then
|
|
Result := _SQLite3_ColumnInt(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_ColumnText(hStmt: TSqliteStmt; ColNum: Integer): PAnsiChar;
|
|
begin
|
|
Result := nil;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnText) then
|
|
Result := _SQLite3_ColumnText(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_ColumnType(hStmt: TSqliteStmt; ColNum: Integer): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnType) then
|
|
Result := _SQLite3_ColumnType(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_ColumnInt64(hStmt: TSqliteStmt; ColNum: Integer): Int64;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_ColumnInt64) then
|
|
Result := _SQLite3_ColumnInt64(hStmt, ColNum);
|
|
end;
|
|
function SQLite3_Finalize(hStmt: TSqliteStmt): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Finalize) then
|
|
Result := _SQLite3_Finalize(hStmt);
|
|
end;
|
|
function SQLite3_Reset(hStmt: TSqliteStmt): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_Reset) then
|
|
Result := _SQLite3_Reset(hStmt);
|
|
end;
|
|
function sqlite3_bind_blob(hStmt: TSqliteStmt; ParamNum: Integer;
|
|
ptrData: Pointer; numBytes: Integer; ptrDestructor: TSQLite3Destructor): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_sqlite3_bind_blob) then
|
|
Result := _sqlite3_bind_blob(hStmt, ParamNum, ptrData, numBytes, ptrDestructor);
|
|
end;
|
|
function sqlite3_bind_text(hStmt: TSqliteStmt; ParamNum: Integer;
|
|
Text: PAnsiChar; numBytes: Integer; ptrDestructor: TSQLite3Destructor): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_sqlite3_bind_text) then
|
|
Result := _sqlite3_bind_text(hStmt, ParamNum, Text, numBytes, ptrDestructor);
|
|
end;
|
|
function sqlite3_bind_double(hStmt: TSqliteStmt; ParamNum: Integer; Data: Double): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_sqlite3_bind_double) then
|
|
Result := _sqlite3_bind_double(hStmt, ParamNum, Data);
|
|
end;
|
|
function sqlite3_bind_int(hStmt: TSqLiteStmt; ParamNum: Integer; Data: Integer): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_sqlite3_bind_int) then
|
|
Result := _sqlite3_bind_int(hStmt, ParamNum, Data);
|
|
end;
|
|
function sqlite3_bind_int64(hStmt: TSqliteStmt; ParamNum: Integer; Data: int64): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_sqlite3_bind_int64) then
|
|
Result := _sqlite3_bind_int64(hStmt, ParamNum, Data);
|
|
end;
|
|
function sqlite3_bind_null(hStmt: TSqliteStmt; ParamNum: Integer): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_sqlite3_bind_null) then
|
|
Result := _sqlite3_bind_null(hStmt, ParamNum);
|
|
end;
|
|
function sqlite3_bind_parameter_index(hStmt: TSqliteStmt; zName: PAnsiChar): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_sqlite3_bind_parameter_index) then
|
|
Result := _sqlite3_bind_parameter_index(hStmt, zName);
|
|
end;
|
|
function sqlite3_enable_shared_cache(Value: Integer): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_sqlite3_enable_shared_cache) then
|
|
Result := _sqlite3_enable_shared_cache(Value);
|
|
end;
|
|
function SQLite3_create_collation(db: TSQLiteDB; Name: PAnsiChar; eTextRep: Integer;
|
|
UserData: Pointer; xCompare: TCollateXCompare): Integer;
|
|
begin
|
|
Result := -1;
|
|
if InitSqlite3Procedure and Assigned(_SQLite3_create_collation) then
|
|
Result := _SQLite3_create_collation(db, Name, eTextRep, UserData, xCompare);
|
|
end;
|
|
// -----------------------------------------------------------------------------
|
|
function SQLiteFieldType(SQLiteFieldTypeCode: Integer): AnsiString;
|
|
begin
|
|
case SQLiteFieldTypeCode of
|
|
SQLITE_INTEGER: Result := 'Integer';
|
|
SQLITE_FLOAT: Result := 'Float';
|
|
SQLITE_TEXT: Result := 'Text';
|
|
SQLITE_BLOB: Result := 'Blob';
|
|
SQLITE_NULL: Result := 'Null';
|
|
else
|
|
Result := AnsiString('Unknown SQLite Field Type Code "' + IntToStr(SQLiteFieldTypeCode) + '"');
|
|
end;
|
|
end;
|
|
function SQLiteErrorStr(SQLiteErrorCode: Integer): AnsiString;
|
|
begin
|
|
case SQLiteErrorCode of
|
|
SQLITE_OK: Result := 'Successful result';
|
|
SQLITE_ERROR: Result := 'SQL error or missing database';
|
|
SQLITE_INTERNAL: Result := 'An internal logic error in SQLite';
|
|
SQLITE_PERM: Result := 'Access permission denied';
|
|
SQLITE_ABORT: Result := 'Callback routine requested an abort';
|
|
SQLITE_BUSY: Result := 'The database file is locked';
|
|
SQLITE_LOCKED: Result := 'A table in the database is locked';
|
|
SQLITE_NOMEM: Result := 'A malloc() failed';
|
|
SQLITE_READONLY: Result := 'Attempt to write a readonly database';
|
|
SQLITE_INTERRUPT: Result := 'Operation terminated by sqlite3_interrupt()';
|
|
SQLITE_IOERR: Result := 'Some kind of disk I/O error occurred';
|
|
SQLITE_CORRUPT: Result := 'The database disk image is malformed';
|
|
SQLITE_NOTFOUND: Result := '(Internal Only) Table or record not found';
|
|
SQLITE_FULL: Result := 'Insertion failed because database is full';
|
|
SQLITE_CANTOPEN: Result := 'Unable to open the database file';
|
|
SQLITE_PROTOCOL: Result := 'Database lock protocol error';
|
|
SQLITE_EMPTY: Result := 'Database is empty';
|
|
SQLITE_SCHEMA: Result := 'The database schema changed';
|
|
SQLITE_TOOBIG: Result := 'Too much data for one row of a table';
|
|
SQLITE_CONSTRAINT: Result := 'Abort due to contraint violation';
|
|
SQLITE_MISMATCH: Result := 'Data type mismatch';
|
|
SQLITE_MISUSE: Result := 'Library used incorrectly';
|
|
SQLITE_NOLFS: Result := 'Uses OS features not supported on host';
|
|
SQLITE_AUTH: Result := 'Authorization denied';
|
|
SQLITE_FORMAT: Result := 'Auxiliary database format error';
|
|
SQLITE_RANGE: Result := '2nd parameter to sqlite3_bind out of range';
|
|
SQLITE_NOTADB: Result := 'File opened that is not a database file';
|
|
SQLITE_ROW: Result := 'sqlite3_step() has another row ready';
|
|
SQLITE_DONE: Result := 'sqlite3_step() has finished executing';
|
|
else
|
|
Result := AnsiString('Unknown SQLite Error Code "' + IntToStr(SQLiteErrorCode) + '"');
|
|
end;
|
|
end;
|
|
function ColValueToStr(Value: PAnsiChar): AnsiString;
|
|
begin
|
|
if (Value = nil) then
|
|
Result := 'NULL'
|
|
else
|
|
Result := Value;
|
|
end;
|
|
|
|
end.
|