/////////////////////////////////////////////////////////////////////////////// // Name: wx/db.h // Purpose: Header file wxDb class. The wxDb class represents a connection // to an ODBC data source. The wxDb class allows operations on the data // source such as opening and closing the data source. // Author: Doug Card // Modified by: George Tasker // Bart Jourquin // Mark Johnson, wxWindows@mj10777.de // Mods: Dec, 1998: // -Added support for SQL statement logging and database cataloging // April, 1999 // -Added QUERY_ONLY mode support to reduce default number of cursors // -Added additional SQL logging code // -Added DEBUG-ONLY tracking of Ctable objects to detect orphaned DB connections // -Set ODBC option to only read committed writes to the DB so all // databases operate the same in that respect // // Created: 9.96 // RCS-ID: $Id$ // Copyright: (c) 1996 Remstar International, Inc. // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// #ifndef _WX_DB_H_ #define _WX_DB_H_ // BJO 20000503: introduce new GetColumns members which are more database independent and // return columns in the order they were created #define OLD_GETCOLUMNS 1 #define EXPERIMENTAL_WXDB_FUNCTIONS 1 #include "wx/defs.h" #include "wx/string.h" #if defined(__VISUALC__) // we need to include standard Windows headers but we can't include // directly when using MFC because it includes it itself in a // different manner #if wxUSE_MFC #include #else // !wxUSE_MFC #include "wx/msw/wrapwin.h" #endif // wxUSE_MFC/!wxUSE_MFC // If you use the wxDbCreateDataSource() function with MSW/VC6, // you cannot use the iODBC headers, you must use the VC headers, // plus the odbcinst.h header - gt Nov 2 2000 // // Must add "odbccp32.lib" in \wx2\wxWidgets\src\makevc.env to the WINLIBS= line // #include "sql.h" #include "sqlext.h" //#if wxUSE_UNICODE // #include //#endif #include "odbcinst.h" #else #if defined(__WINDOWS__) && ( defined(HAVE_W32API_H) || defined(__BORLANDC__) || defined (__DMC__)) #include "wx/msw/wrapwin.h" #endif extern "C" { #if defined(wxUSE_BUILTIN_IODBC) && wxUSE_BUILTIN_IODBC // Use the ones from the library #include "wx/isql.h" #include "wx/isqlext.h" // Not available in v2.x of iODBC #ifndef __WXMSW__ #if wxUSE_UNICODE typedef wxChar SQLTCHAR; #else typedef UCHAR SQLTCHAR; #endif #endif #else // !wxUSE_BUILTIN_IODBC // SQL headers define BOOL if it's not defined yet but BOOL is also // defined in many other places on other systems (Motif, at least on // OpenVMS; Cocoa and X11) so prevent the problem by defining it before // including these headers #define BOOL int #include #include #undef BOOL #endif // wxUSE_BUILTIN_IODBC/!wxUSE_BUILTIN_IODBC } #endif #if wxUSE_UNICODE #define SQL_C_WXCHAR SQL_C_WCHAR #else #define SQL_C_WXCHAR SQL_C_CHAR #endif #ifdef __DIGITALMARS__ #if wxUSE_UNICODE typedef wxChar SQLTCHAR; #else typedef UCHAR SQLTCHAR; #endif #endif typedef float SFLOAT; typedef double SDOUBLE; typedef unsigned int UINT; #define ULONG UDWORD #ifndef wxODBC_FWD_ONLY_CURSORS #define wxODBC_FWD_ONLY_CURSORS 1 #endif enum enumDummy {enumDum1}; #ifndef SQL_C_BOOLEAN #define SQL_C_BOOLEAN(datatype) (sizeof(datatype) == 1 ? SQL_C_UTINYINT : (sizeof(datatype) == 2 ? SQL_C_USHORT : SQL_C_ULONG)) #endif #ifndef SQL_C_ENUM #define SQL_C_ENUM (sizeof(enumDummy) == 2 ? SQL_C_USHORT : SQL_C_ULONG) #endif // NOTE: If SQL_C_BLOB is defined, and it is not SQL_C_BINARY, iODBC 2.x // may not function correctly. Likely best to use SQL_C_BINARY direct #ifndef SQL_C_BLOB #ifdef SQL_C_BINARY #define SQL_C_BLOB SQL_C_BINARY #endif #endif #ifndef _WIN64 #ifndef SQLLEN #define SQLLEN SQLINTEGER #endif #ifndef SQLULEN #define SQLULEN SQLUINTEGER #endif #endif const int wxDB_PATH_MAX = 254; extern WXDLLIMPEXP_DATA_ODBC(wxChar const *) SQL_LOG_FILENAME; extern WXDLLIMPEXP_DATA_ODBC(wxChar const *) SQL_CATALOG_FILENAME; // Database Globals const int DB_TYPE_NAME_LEN = 40; const int DB_MAX_STATEMENT_LEN = 4096; const int DB_MAX_WHERE_CLAUSE_LEN = 2048; const int DB_MAX_ERROR_MSG_LEN = 512; const int DB_MAX_ERROR_HISTORY = 5; const int DB_MAX_TABLE_NAME_LEN = 128; const int DB_MAX_COLUMN_NAME_LEN = 128; const int DB_DATA_TYPE_VARCHAR = 1; const int DB_DATA_TYPE_INTEGER = 2; const int DB_DATA_TYPE_FLOAT = 3; const int DB_DATA_TYPE_DATE = 4; const int DB_DATA_TYPE_BLOB = 5; const int DB_DATA_TYPE_MEMO = 6; const int DB_SELECT_KEYFIELDS = 1; const int DB_SELECT_WHERE = 2; const int DB_SELECT_MATCHING = 3; const int DB_SELECT_STATEMENT = 4; const int DB_UPD_KEYFIELDS = 1; const int DB_UPD_WHERE = 2; const int DB_DEL_KEYFIELDS = 1; const int DB_DEL_WHERE = 2; const int DB_DEL_MATCHING = 3; const int DB_WHERE_KEYFIELDS = 1; const int DB_WHERE_MATCHING = 2; const int DB_GRANT_SELECT = 1; const int DB_GRANT_INSERT = 2; const int DB_GRANT_UPDATE = 4; const int DB_GRANT_DELETE = 8; const int DB_GRANT_ALL = DB_GRANT_SELECT | DB_GRANT_INSERT | DB_GRANT_UPDATE | DB_GRANT_DELETE; // ODBC Error codes (derived from ODBC SqlState codes) enum wxODBC_ERRORS { DB_FAILURE = 0, DB_SUCCESS = 1, DB_ERR_NOT_IN_USE, DB_ERR_GENERAL_WARNING, // SqlState = '01000' DB_ERR_DISCONNECT_ERROR, // SqlState = '01002' DB_ERR_DATA_TRUNCATED, // SqlState = '01004' DB_ERR_PRIV_NOT_REVOKED, // SqlState = '01006' DB_ERR_INVALID_CONN_STR_ATTR, // SqlState = '01S00' DB_ERR_ERROR_IN_ROW, // SqlState = '01S01' DB_ERR_OPTION_VALUE_CHANGED, // SqlState = '01S02' DB_ERR_NO_ROWS_UPD_OR_DEL, // SqlState = '01S03' DB_ERR_MULTI_ROWS_UPD_OR_DEL, // SqlState = '01S04' DB_ERR_WRONG_NO_OF_PARAMS, // SqlState = '07001' DB_ERR_DATA_TYPE_ATTR_VIOL, // SqlState = '07006' DB_ERR_UNABLE_TO_CONNECT, // SqlState = '08001' DB_ERR_CONNECTION_IN_USE, // SqlState = '08002' DB_ERR_CONNECTION_NOT_OPEN, // SqlState = '08003' DB_ERR_REJECTED_CONNECTION, // SqlState = '08004' DB_ERR_CONN_FAIL_IN_TRANS, // SqlState = '08007' DB_ERR_COMM_LINK_FAILURE, // SqlState = '08S01' DB_ERR_INSERT_VALUE_LIST_MISMATCH, // SqlState = '21S01' DB_ERR_DERIVED_TABLE_MISMATCH, // SqlState = '21S02' DB_ERR_STRING_RIGHT_TRUNC, // SqlState = '22001' DB_ERR_NUMERIC_VALUE_OUT_OF_RNG, // SqlState = '22003' DB_ERR_ERROR_IN_ASSIGNMENT, // SqlState = '22005' DB_ERR_DATETIME_FLD_OVERFLOW, // SqlState = '22008' DB_ERR_DIVIDE_BY_ZERO, // SqlState = '22012' DB_ERR_STR_DATA_LENGTH_MISMATCH, // SqlState = '22026' DB_ERR_INTEGRITY_CONSTRAINT_VIOL, // SqlState = '23000' DB_ERR_INVALID_CURSOR_STATE, // SqlState = '24000' DB_ERR_INVALID_TRANS_STATE, // SqlState = '25000' DB_ERR_INVALID_AUTH_SPEC, // SqlState = '28000' DB_ERR_INVALID_CURSOR_NAME, // SqlState = '34000' DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL, // SqlState = '37000' DB_ERR_DUPLICATE_CURSOR_NAME, // SqlState = '3C000' DB_ERR_SERIALIZATION_FAILURE, // SqlState = '40001' DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL2, // SqlState = '42000' DB_ERR_OPERATION_ABORTED, // SqlState = '70100' DB_ERR_UNSUPPORTED_FUNCTION, // SqlState = 'IM001' DB_ERR_NO_DATA_SOURCE, // SqlState = 'IM002' DB_ERR_DRIVER_LOAD_ERROR, // SqlState = 'IM003' DB_ERR_SQLALLOCENV_FAILED, // SqlState = 'IM004' DB_ERR_SQLALLOCCONNECT_FAILED, // SqlState = 'IM005' DB_ERR_SQLSETCONNECTOPTION_FAILED, // SqlState = 'IM006' DB_ERR_NO_DATA_SOURCE_DLG_PROHIB, // SqlState = 'IM007' DB_ERR_DIALOG_FAILED, // SqlState = 'IM008' DB_ERR_UNABLE_TO_LOAD_TRANSLATION_DLL, // SqlState = 'IM009' DB_ERR_DATA_SOURCE_NAME_TOO_LONG, // SqlState = 'IM010' DB_ERR_DRIVER_NAME_TOO_LONG, // SqlState = 'IM011' DB_ERR_DRIVER_KEYWORD_SYNTAX_ERROR, // SqlState = 'IM012' DB_ERR_TRACE_FILE_ERROR, // SqlState = 'IM013' DB_ERR_TABLE_OR_VIEW_ALREADY_EXISTS, // SqlState = 'S0001' DB_ERR_TABLE_NOT_FOUND, // SqlState = 'S0002' DB_ERR_INDEX_ALREADY_EXISTS, // SqlState = 'S0011' DB_ERR_INDEX_NOT_FOUND, // SqlState = 'S0012' DB_ERR_COLUMN_ALREADY_EXISTS, // SqlState = 'S0021' DB_ERR_COLUMN_NOT_FOUND, // SqlState = 'S0022' DB_ERR_NO_DEFAULT_FOR_COLUMN, // SqlState = 'S0023' DB_ERR_GENERAL_ERROR, // SqlState = 'S1000' DB_ERR_MEMORY_ALLOCATION_FAILURE, // SqlState = 'S1001' DB_ERR_INVALID_COLUMN_NUMBER, // SqlState = 'S1002' DB_ERR_PROGRAM_TYPE_OUT_OF_RANGE, // SqlState = 'S1003' DB_ERR_SQL_DATA_TYPE_OUT_OF_RANGE, // SqlState = 'S1004' DB_ERR_OPERATION_CANCELLED, // SqlState = 'S1008' DB_ERR_INVALID_ARGUMENT_VALUE, // SqlState = 'S1009' DB_ERR_FUNCTION_SEQUENCE_ERROR, // SqlState = 'S1010' DB_ERR_OPERATION_INVALID_AT_THIS_TIME, // SqlState = 'S1011' DB_ERR_INVALID_TRANS_OPERATION_CODE, // SqlState = 'S1012' DB_ERR_NO_CURSOR_NAME_AVAIL, // SqlState = 'S1015' DB_ERR_INVALID_STR_OR_BUF_LEN, // SqlState = 'S1090' DB_ERR_DESCRIPTOR_TYPE_OUT_OF_RANGE, // SqlState = 'S1091' DB_ERR_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1092' DB_ERR_INVALID_PARAM_NO, // SqlState = 'S1093' DB_ERR_INVALID_SCALE_VALUE, // SqlState = 'S1094' DB_ERR_FUNCTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1095' DB_ERR_INF_TYPE_OUT_OF_RANGE, // SqlState = 'S1096' DB_ERR_COLUMN_TYPE_OUT_OF_RANGE, // SqlState = 'S1097' DB_ERR_SCOPE_TYPE_OUT_OF_RANGE, // SqlState = 'S1098' DB_ERR_NULLABLE_TYPE_OUT_OF_RANGE, // SqlState = 'S1099' DB_ERR_UNIQUENESS_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1100' DB_ERR_ACCURACY_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1101' DB_ERR_DIRECTION_OPTION_OUT_OF_RANGE, // SqlState = 'S1103' DB_ERR_INVALID_PRECISION_VALUE, // SqlState = 'S1104' DB_ERR_INVALID_PARAM_TYPE, // SqlState = 'S1105' DB_ERR_FETCH_TYPE_OUT_OF_RANGE, // SqlState = 'S1106' DB_ERR_ROW_VALUE_OUT_OF_RANGE, // SqlState = 'S1107' DB_ERR_CONCURRENCY_OPTION_OUT_OF_RANGE, // SqlState = 'S1108' DB_ERR_INVALID_CURSOR_POSITION, // SqlState = 'S1109' DB_ERR_INVALID_DRIVER_COMPLETION, // SqlState = 'S1110' DB_ERR_INVALID_BOOKMARK_VALUE, // SqlState = 'S1111' DB_ERR_DRIVER_NOT_CAPABLE, // SqlState = 'S1C00' DB_ERR_TIMEOUT_EXPIRED // SqlState = 'S1T00' }; #ifndef MAXNAME #define MAXNAME 31 #endif #ifndef SQL_MAX_AUTHSTR_LEN // There does not seem to be a standard for this, so I am // defaulting to the value that MS uses #define SQL_MAX_AUTHSTR_LEN MAXNAME #endif #ifndef SQL_MAX_CONNECTSTR_LEN // There does not seem to be a standard for this, so I am // defaulting to the value that MS recommends #define SQL_MAX_CONNECTSTR_LEN 1024 #endif class WXDLLIMPEXP_ODBC wxDbConnectInf { private: bool freeHenvOnDestroy; bool useConnectionStr; public: HENV Henv; wxChar Dsn[SQL_MAX_DSN_LENGTH+1]; // Data Source Name wxChar Uid[SQL_MAX_USER_NAME_LEN+1]; // User ID wxChar AuthStr[SQL_MAX_AUTHSTR_LEN+1]; // Authorization string (password) wxChar ConnectionStr[SQL_MAX_CONNECTSTR_LEN+1]; // Connection string (password) wxString Description; // Not sure what the max length is wxString FileType; // Not sure what the max length is // Optionals needed for some databases like dBase wxString DefaultDir; // Directory that db file resides in public: wxDbConnectInf(); wxDbConnectInf(HENV henv, const wxString &dsn, const wxString &userID=wxEmptyString, const wxString &password=wxEmptyString, const wxString &defaultDir=wxEmptyString, const wxString &description=wxEmptyString, const wxString &fileType=wxEmptyString); ~wxDbConnectInf(); bool Initialize(); bool AllocHenv(); void FreeHenv(); // Accessors const HENV &GetHenv() { return Henv; }; const wxChar *GetDsn() { return Dsn; }; const wxChar *GetUid() { return Uid; }; const wxChar *GetUserID() { return Uid; }; const wxChar *GetAuthStr() { return AuthStr; }; const wxChar *GetPassword() { return AuthStr; }; const wxChar *GetConnectionStr() { return ConnectionStr; }; bool UseConnectionStr() { return useConnectionStr; }; const wxChar *GetDescription() { return Description; }; const wxChar *GetFileType() { return FileType; }; const wxChar *GetDefaultDir() { return DefaultDir; }; void SetHenv(const HENV henv) { Henv = henv; }; void SetDsn(const wxString &dsn); void SetUserID(const wxString &userID); void SetUid(const wxString &uid) { SetUserID(uid); }; void SetPassword(const wxString &password); void SetAuthStr(const wxString &authstr) { SetPassword(authstr); }; void SetConnectionStr(const wxString &connectStr); void SetDescription(const wxString &desc) { Description = desc; }; void SetFileType(const wxString &fileType) { FileType = fileType; }; void SetDefaultDir(const wxString &defDir) { DefaultDir = defDir; }; }; // class wxDbConnectInf struct WXDLLIMPEXP_ODBC wxDbSqlTypeInfo { wxString TypeName; SWORD FsqlType; long Precision; short CaseSensitive; short MaximumScale; }; class WXDLLIMPEXP_ODBC wxDbColFor { public: wxString s_Field; // Formatted String for Output wxString s_Format[7]; // Formatted Objects - TIMESTAMP has the biggest (7) wxString s_Amount[7]; // Formatted Objects - amount of things that can be formatted int i_Amount[7]; // Formatted Objects - TT MM YYYY HH MM SS m int i_Nation; // 0 = timestamp , 1=EU, 2=UK, 3=International, 4=US int i_dbDataType; // conversion of the 'sqlDataType' to the generic data type used by these classes SWORD i_sqlDataType; wxDbColFor(); ~wxDbColFor(){} void Initialize(); int Format(int Nation, int dbDataType, SWORD sqlDataType, short columnLength, short decimalDigits); }; class WXDLLIMPEXP_ODBC wxDbColInf { public: wxChar catalog[128+1]; wxChar schema[128+1]; wxChar tableName[DB_MAX_TABLE_NAME_LEN+1]; wxChar colName[DB_MAX_COLUMN_NAME_LEN+1]; SWORD sqlDataType; wxChar typeName[128+1]; SWORD columnLength; SWORD bufferSize; short decimalDigits; short numPrecRadix; short nullable; wxChar remarks[254+1]; int dbDataType; // conversion of the 'sqlDataType' to the generic data type used by these classes // mj10777.19991224 : new int PkCol; // Primary key column 0=No; 1= First Key, 2 = Second Key etc. wxChar PkTableName[DB_MAX_TABLE_NAME_LEN+1]; // Tables that use this PKey as a FKey int FkCol; // Foreign key column 0=No; 1= First Key, 2 = Second Key etc. wxChar FkTableName[DB_MAX_TABLE_NAME_LEN+1]; // Foreign key table name wxDbColFor *pColFor; // How should this columns be formatted wxDbColInf(); ~wxDbColInf(); bool Initialize(); }; class WXDLLIMPEXP_ODBC wxDbTableInf // Description of a Table { public: wxChar tableName[DB_MAX_TABLE_NAME_LEN+1]; wxChar tableType[254+1]; // "TABLE" or "SYSTEM TABLE" etc. wxChar tableRemarks[254+1]; UWORD numCols; // How many Columns does this Table have: GetColumnCount(..); wxDbColInf *pColInf; // pColInf = NULL ; User can later call GetColumns(..); wxDbTableInf(); ~wxDbTableInf(); bool Initialize(); }; class WXDLLIMPEXP_ODBC wxDbInf // Description of a Database { public: wxChar catalog[128+1]; wxChar schema[128+1]; int numTables; // How many tables does this database have wxDbTableInf *pTableInf; // pTableInf = new wxDbTableInf[numTables]; wxDbInf(); ~wxDbInf(); bool Initialize(); }; enum wxDbSqlLogState { sqlLogOFF, sqlLogON }; // These are the databases currently tested and working with these classes // See the comments in wxDb::Dbms() for exceptions/issues with // each of these database engines enum wxDBMS { dbmsUNIDENTIFIED, dbmsORACLE, dbmsSYBASE_ASA, // Adaptive Server Anywhere dbmsSYBASE_ASE, // Adaptive Server Enterprise dbmsMS_SQL_SERVER, dbmsMY_SQL, dbmsPOSTGRES, dbmsACCESS, dbmsDBASE, dbmsINFORMIX, dbmsVIRTUOSO, dbmsDB2, dbmsINTERBASE, dbmsPERVASIVE_SQL, dbmsXBASE_SEQUITER, dbmsFIREBIRD, dbmsMAXDB, dbmsFuture1, dbmsFuture2, dbmsFuture3, dbmsFuture4, dbmsFuture5, dbmsFuture6, dbmsFuture7, dbmsFuture8, dbmsFuture9, dbmsFuture10 }; // The wxDb::errorList is copied to this variable when the wxDb object // is closed. This way, the error list is still available after the // database object is closed. This is necessary if the database // connection fails so the calling application can show the operator // why the connection failed. Note: as each wxDb object is closed, it // will overwrite the errors of the previously destroyed wxDb object in // this variable. extern WXDLLIMPEXP_DATA_ODBC(wxChar) DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN+1]; class WXDLLIMPEXP_ODBC wxDb { private: bool dbIsOpen; bool dbIsCached; // Was connection created by caching functions bool dbOpenedWithConnectionString; // Was the database connection opened with a connection string wxString dsn; // Data source name wxString uid; // User ID wxString authStr; // Authorization string (password) wxString inConnectionStr; // Connection string used to connect to the database wxString outConnectionStr;// Connection string returned by the database when a connection is successfully opened FILE *fpSqlLog; // Sql Log file pointer wxDbSqlLogState sqlLogState; // On or Off bool fwdOnlyCursors; wxDBMS dbmsType; // Type of datasource - i.e. Oracle, dBase, SQLServer, etc // Private member functions bool getDbInfo(bool failOnDataTypeUnsupported=true); bool getDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo); bool setConnectionOptions(void); void logError(const wxString &errMsg, const wxString &SQLState); void convertUserID(const wxChar *userID, wxString &UserID); bool determineDataTypes(bool failOnDataTypeUnsupported); void initialize(); bool open(bool failOnDataTypeUnsupported=true); #if !wxODBC_BACKWARD_COMPATABILITY // ODBC handles HENV henv; // ODBC Environment handle HDBC hdbc; // ODBC DB Connection handle HSTMT hstmt; // ODBC Statement handle //Error reporting mode bool silent; // Number of Ctable objects connected to this db object. FOR INTERNAL USE ONLY!!! unsigned int nTables; // Information about logical data types VARCHAR, INTEGER, FLOAT and DATE. // // This information is obtained from the ODBC driver by use of the // SQLGetTypeInfo() function. The key piece of information is the // type name the data source uses for each logical data type. // e.g. VARCHAR; Oracle calls it VARCHAR2. wxDbSqlTypeInfo typeInfVarchar; wxDbSqlTypeInfo typeInfInteger; wxDbSqlTypeInfo typeInfFloat; wxDbSqlTypeInfo typeInfDate; wxDbSqlTypeInfo typeInfBlob; wxDbSqlTypeInfo typeInfMemo; #endif public: void setCached(bool cached) { dbIsCached = cached; }; // This function must only be called by wxDbGetConnection() and wxDbCloseConnections!!! bool IsCached() { return dbIsCached; }; bool GetDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo) { return getDataTypeInfo(fSqlType, structSQLTypeInfo); } #if wxODBC_BACKWARD_COMPATABILITY // ODBC handles HENV henv; // ODBC Environment handle HDBC hdbc; // ODBC DB Connection handle HSTMT hstmt; // ODBC Statement handle //Error reporting mode bool silent; // Number of Ctable objects connected to this db object. FOR INTERNAL USE ONLY!!! unsigned int nTables; #endif // The following structure contains database information gathered from the // datasource when the datasource is first opened. struct { wxChar dbmsName[40]; // Name of the dbms product wxChar dbmsVer[64]; // Version # of the dbms product wxChar driverName[40]; // Driver name wxChar odbcVer[60]; // ODBC version of the driver wxChar drvMgrOdbcVer[60]; // ODBC version of the driver manager wxChar driverVer[60]; // Driver version wxChar serverName[80]; // Server Name, typically a connect string wxChar databaseName[128]; // Database filename wxChar outerJoins[2]; // Indicates whether the data source supports outer joins wxChar procedureSupport[2]; // Indicates whether the data source supports stored procedures wxChar accessibleTables[2]; // Indicates whether the data source only reports accessible tables in SQLTables. UWORD maxConnections; // Maximum # of connections the data source supports UWORD maxStmts; // Maximum # of HSTMTs per HDBC UWORD apiConfLvl; // ODBC API conformance level UWORD cliConfLvl; // Indicates whether the data source is SAG compliant UWORD sqlConfLvl; // SQL conformance level UWORD cursorCommitBehavior; // Indicates how cursors are affected by a db commit UWORD cursorRollbackBehavior; // Indicates how cursors are affected by a db rollback UWORD supportNotNullClause; // Indicates if data source supports NOT NULL clause wxChar supportIEF[2]; // Integrity Enhancement Facility (Referential Integrity) UDWORD txnIsolation; // Default transaction isolation level supported by the driver UDWORD txnIsolationOptions; // Transaction isolation level options available UDWORD fetchDirections; // Fetch directions supported UDWORD lockTypes; // Lock types supported in SQLSetPos UDWORD posOperations; // Position operations supported in SQLSetPos UDWORD posStmts; // Position statements supported UDWORD scrollConcurrency; // Concurrency control options supported for scrollable cursors UDWORD scrollOptions; // Scroll Options supported for scrollable cursors UDWORD staticSensitivity; // Indicates if additions, deletions and updates can be detected UWORD txnCapable; // Indicates if the data source supports transactions UDWORD loginTimeout; // Number seconds to wait for a login request } dbInf; // ODBC Error Inf. SWORD cbErrorMsg; int DB_STATUS; #ifdef __VMS // The DECC compiler chokes when in db.cpp the array is accessed outside // its bounds. Maybe this change should also applied for other platforms. wxChar errorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN+1]; #else wxChar errorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN]; #endif wxChar errorMsg[SQL_MAX_MESSAGE_LENGTH]; SQLINTEGER nativeError; wxChar sqlState[20]; #if wxODBC_BACKWARD_COMPATABILITY // Information about logical data types VARCHAR, INTEGER, FLOAT and DATE. // // This information is obtained from the ODBC driver by use of the // SQLGetTypeInfo() function. The key piece of information is the // type name the data source uses for each logical data type. // e.g. VARCHAR; Oracle calls it VARCHAR2. wxDbSqlTypeInfo typeInfVarchar; wxDbSqlTypeInfo typeInfInteger; wxDbSqlTypeInfo typeInfFloat; wxDbSqlTypeInfo typeInfDate; wxDbSqlTypeInfo typeInfBlob; #endif // Public member functions wxDb(const HENV &aHenv, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS); ~wxDb(); // Data Source Name, User ID, Password and whether open should fail on data type not supported bool Open(const wxString& inConnectStr, bool failOnDataTypeUnsupported=true); ///This version of Open will open the odbc source selection dialog. Cast a wxWindow::GetHandle() to SQLHWND to use. bool Open(const wxString& inConnectStr, SQLHWND parentWnd, bool failOnDataTypeUnsupported=true); bool Open(const wxString &Dsn, const wxString &Uid, const wxString &AuthStr, bool failOnDataTypeUnsupported=true); bool Open(wxDbConnectInf *dbConnectInf, bool failOnDataTypeUnsupported=true); bool Open(wxDb *copyDb); // pointer to a wxDb whose connection info should be copied rather than re-queried void Close(void); bool CommitTrans(void); bool RollbackTrans(void); bool DispAllErrors(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT); bool GetNextError(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT); void DispNextError(void); bool CreateView(const wxString &viewName, const wxString &colList, const wxString &pSqlStmt, bool attemptDrop=true); bool DropView(const wxString &viewName); bool ExecSql(const wxString &pSqlStmt); bool ExecSql(const wxString &pSqlStmt, wxDbColInf** columns, short& numcols); bool GetNext(void); bool GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SQLLEN FAR *cbReturned); bool Grant(int privileges, const wxString &tableName, const wxString &userList = wxT("PUBLIC")); int TranslateSqlState(const wxString &SQLState); wxDbInf *GetCatalog(const wxChar *userID=NULL); bool Catalog(const wxChar *userID=NULL, const wxString &fileName=SQL_CATALOG_FILENAME); int GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCols); wxDbColInf *GetColumns(wxChar *tableName[], const wxChar *userID=NULL); wxDbColInf *GetColumns(const wxString &tableName, UWORD *numCols, const wxChar *userID=NULL); int GetColumnCount(const wxString &tableName, const wxChar *userID=NULL); const wxChar *GetDatabaseName(void) {return dbInf.dbmsName;} const wxString &GetDataSource(void) {return dsn;} const wxString &GetDatasourceName(void){return dsn;} const wxString &GetUsername(void) {return uid;} const wxString &GetPassword(void) {return authStr;} const wxString &GetConnectionInStr(void) {return inConnectionStr;} const wxString &GetConnectionOutStr(void) {return outConnectionStr;} bool IsOpen(void) {return dbIsOpen;} bool OpenedWithConnectionString(void) {return dbOpenedWithConnectionString;} HENV GetHENV(void) {return henv;} HDBC GetHDBC(void) {return hdbc;} HSTMT GetHSTMT(void) {return hstmt;} int GetTableCount() {return nTables;} // number of tables using this connection wxDbSqlTypeInfo GetTypeInfVarchar() {return typeInfVarchar;} wxDbSqlTypeInfo GetTypeInfInteger() {return typeInfInteger;} wxDbSqlTypeInfo GetTypeInfFloat() {return typeInfFloat;} wxDbSqlTypeInfo GetTypeInfDate() {return typeInfDate;} wxDbSqlTypeInfo GetTypeInfBlob() {return typeInfBlob;} wxDbSqlTypeInfo GetTypeInfMemo() {return typeInfMemo;} // tableName can refer to a table, view, alias or synonym bool TableExists(const wxString &tableName, const wxChar *userID=NULL, const wxString &tablePath=wxEmptyString); bool TablePrivileges(const wxString &tableName, const wxString &priv, const wxChar *userID=NULL, const wxChar *schema=NULL, const wxString &path=wxEmptyString); // These two functions return the table name or column name in a form ready // for use in SQL statements. For example, if the datasource allows spaces // in the table name or column name, the returned string will have the // correct enclosing marks around the name to allow it to be properly // included in a SQL statement const wxString SQLTableName(const wxChar *tableName); const wxString SQLColumnName(const wxChar *colName); void LogError(const wxString &errMsg, const wxString &SQLState = wxEmptyString) { logError(errMsg, SQLState); } void SetDebugErrorMessages(bool state) { silent = !state; } bool SetSqlLogging(wxDbSqlLogState state, const wxString &filename = SQL_LOG_FILENAME, bool append = false); bool WriteSqlLog(const wxString &logMsg); wxDBMS Dbms(void); bool ModifyColumn(const wxString &tableName, const wxString &columnName, int dataType, ULONG columnLength=0, const wxString &optionalParam=wxEmptyString); bool FwdOnlyCursors(void) {return fwdOnlyCursors;} // return the string with all special SQL characters escaped wxString EscapeSqlChars(const wxString& value); // These two functions are provided strictly for use by wxDbTable. // DO NOT USE THESE FUNCTIONS, OR MEMORY LEAKS MAY OCCUR void incrementTableCount() { nTables++; return; } void decrementTableCount() { nTables--; return; } }; // wxDb // This structure forms a node in a linked list. The linked list of "DbList" objects // keeps track of allocated database connections. This allows the application to // open more than one database connection through ODBC for multiple transaction support // or for multiple database support. struct wxDbList { wxDbList *PtrPrev; // Pointer to previous item in the list wxString Dsn; // Data Source Name wxString Uid; // User ID wxString AuthStr; // Authorization string (password) wxString ConnectionStr; // Connection string used instead of DSN wxDb *PtrDb; // Pointer to the wxDb object bool Free; // Is item free or in use? wxDbList *PtrNext; // Pointer to next item in the list }; #ifdef __WXDEBUG__ #include "wx/object.h" class wxTablesInUse : public wxObject { public: const wxChar *tableName; ULONG tableID; class wxDb *pDb; }; // wxTablesInUse #endif // The following routines allow a user to get new database connections, free them // for other code segments to use, or close all of them when the application has // completed. wxDb WXDLLIMPEXP_ODBC *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS); bool WXDLLIMPEXP_ODBC wxDbFreeConnection(wxDb *pDb); void WXDLLIMPEXP_ODBC wxDbCloseConnections(void); int WXDLLIMPEXP_ODBC wxDbConnectionsInUse(void); // Writes a message to the wxLog window (stdout usually) when an internal error // situation occurs. This function only works in DEBUG builds const wxChar WXDLLIMPEXP_ODBC * wxDbLogExtendedErrorMsg(const wxChar *userText, wxDb *pDb, const wxChar *ErrFile, int ErrLine); // This function sets the sql log state for all open wxDb objects bool WXDLLIMPEXP_ODBC wxDbSqlLog(wxDbSqlLogState state, const wxString &filename = SQL_LOG_FILENAME); #if 0 // MSW/VC6 ONLY!!! Experimental int WXDLLEXPORT wxDbCreateDataSource(const wxString &driverName, const wxString &dsn, const wxString &description=wxEmptyString, bool sysDSN=false, const wxString &defDir=wxEmptyString, wxWindow *parent=NULL); #endif // This routine allows you to query a driver manager // for a list of available datasources. Call this routine // the first time using SQL_FETCH_FIRST. Continue to call it // using SQL_FETCH_NEXT until you've exhausted the list. bool WXDLLIMPEXP_ODBC wxDbGetDataSource(HENV henv, wxChar *Dsn, SWORD DsnMaxLength, wxChar *DsDesc, SWORD DsDescMaxLength, UWORD direction = SQL_FETCH_NEXT); // Change this to 0 to remove use of all deprecated functions #if wxODBC_BACKWARD_COMPATABILITY //################################################################################# //############### DEPRECATED functions for backward compatibility ################# //################################################################################# // Backward compability structures/classes. This will eventually go away const int DB_PATH_MAX = wxDB_PATH_MAX; typedef wxDb wxDB; typedef wxDbTableInf wxTableInf; typedef wxDbColInf wxColInf; typedef wxDbColInf CcolInf; typedef wxDbColFor wxColFor; typedef wxDbSqlTypeInfo SqlTypeInfo; typedef wxDbSqlTypeInfo wxSqlTypeInfo; typedef enum wxDbSqlLogState sqlLog; typedef enum wxDbSqlLogState wxSqlLogState; typedef enum wxDBMS dbms; typedef enum wxDBMS DBMS; typedef wxODBC_ERRORS ODBC_ERRORS; typedef wxDbConnectInf DbStuff; typedef wxDbList DbList; #ifdef __WXDEBUG__ typedef wxTablesInUse CstructTablesInUse; #endif // Deprecated function names that are replaced by the function names listed above wxDB WXDLLIMPEXP_ODBC *GetDbConnection(DbStuff *pDbStuff, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS); bool WXDLLIMPEXP_ODBC FreeDbConnection(wxDB *pDb); void WXDLLIMPEXP_ODBC CloseDbConnections(void); int WXDLLIMPEXP_ODBC NumberDbConnectionsInUse(void); bool SqlLog(sqlLog state, const wxChar *filename = SQL_LOG_FILENAME); bool WXDLLIMPEXP_ODBC GetDataSource(HENV henv, char *Dsn, SWORD DsnMaxLength, char *DsDesc, SWORD DsDescMaxLength, UWORD direction = SQL_FETCH_NEXT); #endif // Deprecated structures/classes/functions #endif // _WX_DB_H_