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Disabled ODBC code by default,
[wxWidgets.git] / include / wx / db.h
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: db.h
3 // Purpose: Header file wxDB class. The wxDB class represents a connection
4 // to an ODBC data source. The wxDB class allows operations on the data
5 // source such as opening and closing the data source.
6 // Author: Doug Card
7 // Modified by: George Tasker
8 // Mods: Dec, 1998:
9 // -Added support for SQL statement logging and database cataloging
10 // April, 1999
11 // -Added QUERY_ONLY mode support to reduce default number of cursors
12 // -Added additional SQL logging code
13 // -Added DEBUG-ONLY tracking of Ctable objects to detect orphaned DB connections
14 // -Set ODBC option to only read committed writes to the DB so all
15 // databases operate the same in that respect
16 //
17 // Created: 9.96
18 // RCS-ID: $Id$
19 // Copyright: (c) 1996 Remstar International, Inc.
20 // Licence: wxWindows licence, plus:
21 // Notice: This class library and its intellectual design are free of charge for use,
22 // modification, enhancement, debugging under the following conditions:
23 // 1) These classes may only be used as part of the implementation of a
24 // wxWindows-based application
25 // 2) All enhancements and bug fixes are to be submitted back to the wxWindows
26 // user groups free of all charges for use with the wxWindows library.
27 // 3) These classes may not be distributed as part of any other class library,
28 // DLL, text (written or electronic), other than a complete distribution of
29 // the wxWindows GUI development toolkit.
30 //
31 ///////////////////////////////////////////////////////////////////////////////
32
33 /*
34 // SYNOPSIS START
35 // SYNOPSIS STOP
36 */
37
38 #ifndef DB_DOT_H
39 #define DB_DOT_H
40
41 // Use this line for wxWindows v1.x
42 //#include "wx_ver.h"
43 // Use this line for wxWindows v2.x
44 #include "wx/version.h"
45
46 #if wxMAJOR_VERSION == 2
47 #ifdef __GNUG__
48 #pragma interface "db.h"
49 #endif
50 #endif
51
52 #include "wx/setup.h"
53
54 #if wxMAJOR_VERSION == 2
55 extern "C" {
56 #include "wx/isql.h"
57 #include "wx/isqlext.h"
58 }
59 #else // version == 1
60 extern "C" {
61 #include "iodbc.h"
62 #include "isqlext.h"
63 }
64 #endif
65
66 typedef float SFLOAT;
67 typedef double SDOUBLE;
68 typedef unsigned int UINT;
69 #define ULONG UDWORD
70 /*
71 #ifdef __UNIX__
72 # ifndef strnicmp
73 # define strnicmp strncasecmp
74 # endif
75 # ifndef stricmp
76 # define stricmp strcasecmp
77 # endif
78 #elif defined(__WXMAC__)
79 #else
80 # include <io.h>
81 #endif
82 */
83
84 #ifndef wxODBC_FWD_ONLY_CURSORS
85 #define wxODBC_FWD_ONLY_CURSORS 1
86 #endif
87
88
89 enum enumDummy {enumDum1};
90
91 #define SQL_C_BOOLEAN(datatype) (sizeof(datatype) == 1 ? SQL_C_UTINYINT : (sizeof(datatype) == 2 ? SQL_C_USHORT : SQL_C_ULONG))
92 // #define SQL_C_BOOLEAN (sizeof(Bool) == 2 ? SQL_C_USHORT : SQL_C_ULONG)
93
94 #define SQL_C_ENUM (sizeof(enumDummy) == 2 ? SQL_C_USHORT : SQL_C_ULONG)
95
96 #ifndef TRUE
97 #define TRUE 1
98 #endif
99
100 #ifndef FALSE
101 #define FALSE 0
102 #endif
103
104 const int DB_PATH_MAX = 254;
105
106 // Database Globals
107 const int DB_TYPE_NAME_LEN = 40;
108 const int DB_MAX_STATEMENT_LEN = 2048;
109 const int DB_MAX_WHERE_CLAUSE_LEN = 1024;
110 const int DB_MAX_ERROR_MSG_LEN = 512;
111 const int DB_MAX_ERROR_HISTORY = 5;
112 const int DB_MAX_TABLE_NAME_LEN = 128;
113 const int DB_MAX_COLUMN_NAME_LEN = 128;
114
115 const int DB_DATA_TYPE_VARCHAR = 1;
116 const int DB_DATA_TYPE_INTEGER = 2;
117 const int DB_DATA_TYPE_FLOAT = 3;
118 const int DB_DATA_TYPE_DATE = 4;
119
120 const int DB_SELECT_KEYFIELDS = 1;
121 const int DB_SELECT_WHERE = 2;
122 const int DB_SELECT_MATCHING = 3;
123 const int DB_SELECT_STATEMENT = 4;
124
125 const int DB_UPD_KEYFIELDS = 1;
126 const int DB_UPD_WHERE = 2;
127
128 const int DB_DEL_KEYFIELDS = 1;
129 const int DB_DEL_WHERE = 2;
130 const int DB_DEL_MATCHING = 3;
131
132 const int DB_WHERE_KEYFIELDS = 1;
133 const int DB_WHERE_MATCHING = 2;
134
135 const int DB_GRANT_SELECT = 1;
136 const int DB_GRANT_INSERT = 2;
137 const int DB_GRANT_UPDATE = 4;
138 const int DB_GRANT_DELETE = 8;
139 const int DB_GRANT_ALL = DB_GRANT_SELECT | DB_GRANT_INSERT | DB_GRANT_UPDATE | DB_GRANT_DELETE;
140
141 // ODBC Error codes (derived from ODBC SqlState codes)
142 enum ODBC_ERRORS
143 {
144 DB_FAILURE = 0,
145 DB_SUCCESS = 1,
146 DB_ERR_NOT_IN_USE,
147 DB_ERR_GENERAL_WARNING, // SqlState = '01000'
148 DB_ERR_DISCONNECT_ERROR, // SqlState = '01002'
149 DB_ERR_DATA_TRUNCATED, // SqlState = '01004'
150 DB_ERR_PRIV_NOT_REVOKED, // SqlState = '01006'
151 DB_ERR_INVALID_CONN_STR_ATTR, // SqlState = '01S00'
152 DB_ERR_ERROR_IN_ROW, // SqlState = '01S01'
153 DB_ERR_OPTION_VALUE_CHANGED, // SqlState = '01S02'
154 DB_ERR_NO_ROWS_UPD_OR_DEL, // SqlState = '01S03'
155 DB_ERR_MULTI_ROWS_UPD_OR_DEL, // SqlState = '01S04'
156 DB_ERR_WRONG_NO_OF_PARAMS, // SqlState = '07001'
157 DB_ERR_DATA_TYPE_ATTR_VIOL, // SqlState = '07006'
158 DB_ERR_UNABLE_TO_CONNECT, // SqlState = '08001'
159 DB_ERR_CONNECTION_IN_USE, // SqlState = '08002'
160 DB_ERR_CONNECTION_NOT_OPEN, // SqlState = '08003'
161 DB_ERR_REJECTED_CONNECTION, // SqlState = '08004'
162 DB_ERR_CONN_FAIL_IN_TRANS, // SqlState = '08007'
163 DB_ERR_COMM_LINK_FAILURE, // SqlState = '08S01'
164 DB_ERR_INSERT_VALUE_LIST_MISMATCH, // SqlState = '21S01'
165 DB_ERR_DERIVED_TABLE_MISMATCH, // SqlState = '21S02'
166 DB_ERR_STRING_RIGHT_TRUNC, // SqlState = '22001'
167 DB_ERR_NUMERIC_VALUE_OUT_OF_RNG, // SqlState = '22003'
168 DB_ERR_ERROR_IN_ASSIGNMENT, // SqlState = '22005'
169 DB_ERR_DATETIME_FLD_OVERFLOW, // SqlState = '22008'
170 DB_ERR_DIVIDE_BY_ZERO, // SqlState = '22012'
171 DB_ERR_STR_DATA_LENGTH_MISMATCH, // SqlState = '22026'
172 DB_ERR_INTEGRITY_CONSTRAINT_VIOL, // SqlState = '23000'
173 DB_ERR_INVALID_CURSOR_STATE, // SqlState = '24000'
174 DB_ERR_INVALID_TRANS_STATE, // SqlState = '25000'
175 DB_ERR_INVALID_AUTH_SPEC, // SqlState = '28000'
176 DB_ERR_INVALID_CURSOR_NAME, // SqlState = '34000'
177 DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL, // SqlState = '37000'
178 DB_ERR_DUPLICATE_CURSOR_NAME, // SqlState = '3C000'
179 DB_ERR_SERIALIZATION_FAILURE, // SqlState = '40001'
180 DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL2, // SqlState = '42000'
181 DB_ERR_OPERATION_ABORTED, // SqlState = '70100'
182 DB_ERR_UNSUPPORTED_FUNCTION, // SqlState = 'IM001'
183 DB_ERR_NO_DATA_SOURCE, // SqlState = 'IM002'
184 DB_ERR_DRIVER_LOAD_ERROR, // SqlState = 'IM003'
185 DB_ERR_SQLALLOCENV_FAILED, // SqlState = 'IM004'
186 DB_ERR_SQLALLOCCONNECT_FAILED, // SqlState = 'IM005'
187 DB_ERR_SQLSETCONNECTOPTION_FAILED, // SqlState = 'IM006'
188 DB_ERR_NO_DATA_SOURCE_DLG_PROHIB, // SqlState = 'IM007'
189 DB_ERR_DIALOG_FAILED, // SqlState = 'IM008'
190 DB_ERR_UNABLE_TO_LOAD_TRANSLATION_DLL, // SqlState = 'IM009'
191 DB_ERR_DATA_SOURCE_NAME_TOO_LONG, // SqlState = 'IM010'
192 DB_ERR_DRIVER_NAME_TOO_LONG, // SqlState = 'IM011'
193 DB_ERR_DRIVER_KEYWORD_SYNTAX_ERROR, // SqlState = 'IM012'
194 DB_ERR_TRACE_FILE_ERROR, // SqlState = 'IM013'
195 DB_ERR_TABLE_OR_VIEW_ALREADY_EXISTS, // SqlState = 'S0001'
196 DB_ERR_TABLE_NOT_FOUND, // SqlState = 'S0002'
197 DB_ERR_INDEX_ALREADY_EXISTS, // SqlState = 'S0011'
198 DB_ERR_INDEX_NOT_FOUND, // SqlState = 'S0012'
199 DB_ERR_COLUMN_ALREADY_EXISTS, // SqlState = 'S0021'
200 DB_ERR_COLUMN_NOT_FOUND, // SqlState = 'S0022'
201 DB_ERR_NO_DEFAULT_FOR_COLUMN, // SqlState = 'S0023'
202 DB_ERR_GENERAL_ERROR, // SqlState = 'S1000'
203 DB_ERR_MEMORY_ALLOCATION_FAILURE, // SqlState = 'S1001'
204 DB_ERR_INVALID_COLUMN_NUMBER, // SqlState = 'S1002'
205 DB_ERR_PROGRAM_TYPE_OUT_OF_RANGE, // SqlState = 'S1003'
206 DB_ERR_SQL_DATA_TYPE_OUT_OF_RANGE, // SqlState = 'S1004'
207 DB_ERR_OPERATION_CANCELLED, // SqlState = 'S1008'
208 DB_ERR_INVALID_ARGUMENT_VALUE, // SqlState = 'S1009'
209 DB_ERR_FUNCTION_SEQUENCE_ERROR, // SqlState = 'S1010'
210 DB_ERR_OPERATION_INVALID_AT_THIS_TIME, // SqlState = 'S1011'
211 DB_ERR_INVALID_TRANS_OPERATION_CODE, // SqlState = 'S1012'
212 DB_ERR_NO_CURSOR_NAME_AVAIL, // SqlState = 'S1015'
213 DB_ERR_INVALID_STR_OR_BUF_LEN, // SqlState = 'S1090'
214 DB_ERR_DESCRIPTOR_TYPE_OUT_OF_RANGE, // SqlState = 'S1091'
215 DB_ERR_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1092'
216 DB_ERR_INVALID_PARAM_NO, // SqlState = 'S1093'
217 DB_ERR_INVALID_SCALE_VALUE, // SqlState = 'S1094'
218 DB_ERR_FUNCTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1095'
219 DB_ERR_INF_TYPE_OUT_OF_RANGE, // SqlState = 'S1096'
220 DB_ERR_COLUMN_TYPE_OUT_OF_RANGE, // SqlState = 'S1097'
221 DB_ERR_SCOPE_TYPE_OUT_OF_RANGE, // SqlState = 'S1098'
222 DB_ERR_NULLABLE_TYPE_OUT_OF_RANGE, // SqlState = 'S1099'
223 DB_ERR_UNIQUENESS_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1100'
224 DB_ERR_ACCURACY_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1101'
225 DB_ERR_DIRECTION_OPTION_OUT_OF_RANGE, // SqlState = 'S1103'
226 DB_ERR_INVALID_PRECISION_VALUE, // SqlState = 'S1104'
227 DB_ERR_INVALID_PARAM_TYPE, // SqlState = 'S1105'
228 DB_ERR_FETCH_TYPE_OUT_OF_RANGE, // SqlState = 'S1106'
229 DB_ERR_ROW_VALUE_OUT_OF_RANGE, // SqlState = 'S1107'
230 DB_ERR_CONCURRENCY_OPTION_OUT_OF_RANGE, // SqlState = 'S1108'
231 DB_ERR_INVALID_CURSOR_POSITION, // SqlState = 'S1109'
232 DB_ERR_INVALID_DRIVER_COMPLETION, // SqlState = 'S1110'
233 DB_ERR_INVALID_BOOKMARK_VALUE, // SqlState = 'S1111'
234 DB_ERR_DRIVER_NOT_CAPABLE, // SqlState = 'S1C00'
235 DB_ERR_TIMEOUT_EXPIRED // SqlState = 'S1T00'
236 };
237
238 struct DbStuff
239 {
240 HENV Henv;
241 char Dsn[SQL_MAX_DSN_LENGTH+1]; // Data Source Name
242 char Uid[20+1]; // User ID
243 char AuthStr[20+1]; // Authorization string (password)
244
245 char description[SQL_MAX_DSN_LENGTH+1]; // Not sure what the max length is
246 char fileType[SQL_MAX_DSN_LENGTH+1]; // Not sure what the max length is
247
248 // Optionals needed for some databases like dBase
249 char defaultDir[DB_PATH_MAX]; // Directory that db file resides in
250 };
251
252 typedef struct
253 {
254 char TypeName[DB_TYPE_NAME_LEN];
255 int FsqlType;
256 long Precision;
257 short CaseSensitive;
258 // short MinimumScale;
259 short MaximumScale;
260 } SqlTypeInfo;
261
262 class WXDLLEXPORT wxColFor
263 {
264 public:
265 wxString s_Field; // Formated String for Output
266 wxString s_Format[7]; // Formated Objekts - TIMESTAMP has the biggest (7)
267 wxString s_Menge[7]; // Formated Objekts - amount of things that can be formatted
268 int i_Menge[7]; // Formated Objekts - TT MM YYYY HH MM SS m
269 int i_Nation; // 0 = timestamp , 1=EU, 2=UK, 3=International, 4=US
270 int i_dbDataType; // conversion of the 'sqlDataType' to the generic data type used by these classes
271 SWORD i_sqlDataType;
272
273 wxColFor();
274 ~wxColFor();
275 int Format(int Nation, int dbDataType,SWORD sqlDataType,short columnSize,short decimalDigits);
276 };
277
278 class WXDLLEXPORT wxColInf
279 {
280 public:
281 char catalog[128+1];
282 char schema[128+1];
283 char tableName[DB_MAX_TABLE_NAME_LEN+1];
284 char colName[DB_MAX_COLUMN_NAME_LEN+1];
285 SWORD sqlDataType;
286 char typeName[128+1];
287 SWORD columnSize;
288 SWORD bufferLength;
289 short decimalDigits;
290 short numPrecRadix;
291 short nullable;
292 char remarks[254+1];
293 int dbDataType; // conversion of the 'sqlDataType' to the generic data type used by these classes
294 // mj10777.19991224 : new
295 int PkCol; // Primary key column 0=No; 1= First Key, 2 = Second Key etc.
296 char PkTableName[DB_MAX_TABLE_NAME_LEN+1]; // Tables that use this PKey as a FKey
297 int FkCol; // Foreign key column 0=No; 1= First Key, 2 = Second Key etc.
298 char FkTableName[DB_MAX_TABLE_NAME_LEN+1]; // Foreign key table name
299 wxColFor *pColFor; // How should this columns be formatted
300 };
301
302 class WXDLLEXPORT wxTableInf // Description of a Table
303 { // mj10777 : used in wxDbInf and GetCatalog(..)
304 public:
305 char tableName[DB_MAX_TABLE_NAME_LEN+1];
306 char tableType[254+1]; // "TABLE" or "SYSTEM TABLE" etc.
307 char tableRemarks[254+1];
308 int numCols; // How many Columns does this Table have: GetColumnCount(..);
309 wxColInf *pColInf; // pColInf = NULL ; User can later call GetColumns(..);
310 };
311
312 class WXDLLEXPORT wxDbInf // Description of a Database
313 { // mj10777 : used in GetCatalog(..)
314 public:
315 char catalog[128+1];
316 char schema[128+1];
317 int numTables; // How many tables does this database have
318 wxTableInf *pTableInf; // pTableInf = new wxTableInf[numTables];
319 };
320
321 enum sqlLog
322 {
323 sqlLogOFF,
324 sqlLogON
325 };
326
327 enum dbms
328 {
329 dbmsUNIDENTIFIED,
330 dbmsORACLE,
331 dbmsSYBASE_ASA, // Adaptive Server Anywhere
332 dbmsSYBASE_ASE, // Adaptive Server Enterprise
333 dbmsMS_SQL_SERVER,
334 dbmsMY_SQL,
335 dbmsPOSTGRES,
336 dbmsACCESS,
337 dbmsDBASE,
338 dbmsINFORMIX
339 };
340
341 typedef enum dbms DBMS;
342
343 // The wxDB::errorList is copied to this variable when the wxDB object
344 // is closed. This way, the error list is still available after the
345 // database object is closed. This is necessary if the database
346 // connection fails so the calling application can show the operator
347 // why the connection failed. Note: as each wxDB object is closed, it
348 // will overwrite the errors of the previously destroyed wxDB object in
349 // this variable.
350 extern char DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
351
352 // Backward compability for Remstar classes. This
353 // will eventually go away, so the wxColXxxx classes
354 // should be used
355 typedef wxColInf CcolInf;
356
357 class WXDLLEXPORT wxDB
358 {
359 private:
360
361 // Private data
362 bool dbIsOpen;
363 char *dsn; // Data source name
364 char *uid; // User ID
365 char *authStr; // Authorization string (password)
366 FILE *fpSqlLog; // Sql Log file pointer
367 enum sqlLog sqlLogState; // On or Off
368
369 // Private member functions
370 bool getDbInfo(void);
371 bool getDataTypeInfo(SWORD fSqlType, SqlTypeInfo &structSQLTypeInfo);
372 bool setConnectionOptions(void);
373 void logError(const char *errMsg, const char *SQLState);
374
375 bool fwdOnlyCursors;
376
377 public:
378
379 // The following structure contains database information gathered from the
380 // datasource when the datasource is first opened.
381 struct
382 {
383 char dbmsName[40]; // Name of the dbms product
384 char dbmsVer[64]; // Version # of the dbms product
385 char driverName[40]; // Driver name
386 char odbcVer[60]; // ODBC version of the driver
387 char drvMgrOdbcVer[60]; // ODBC version of the driver manager
388 char driverVer[60]; // Driver version
389 char serverName[80]; // Server Name, typically a connect string
390 char databaseName[128]; // Database filename
391 char outerJoins[2]; // Indicates whether the data source supports outer joins
392 char procedureSupport[2]; // Indicates whether the data source supports stored procedures
393 UWORD maxConnections; // Maximum # of connections the data source supports
394 UWORD maxStmts; // Maximum # of HSTMTs per HDBC
395 UWORD apiConfLvl; // ODBC API conformance level
396 UWORD cliConfLvl; // Indicates whether the data source is SAG compliant
397 UWORD sqlConfLvl; // SQL conformance level
398 UWORD cursorCommitBehavior; // Indicates how cursors are affected by a db commit
399 UWORD cursorRollbackBehavior; // Indicates how cursors are affected by a db rollback
400 UWORD supportNotNullClause; // Indicates if data source supports NOT NULL clause
401 char supportIEF[2]; // Integrity Enhancement Facility (Referential Integrity)
402 UDWORD txnIsolation; // Default transaction isolation level supported by the driver
403 UDWORD txnIsolationOptions; // Transaction isolation level options available
404 UDWORD fetchDirections; // Fetch directions supported
405 UDWORD lockTypes; // Lock types supported in SQLSetPos
406 UDWORD posOperations; // Position operations supported in SQLSetPos
407 UDWORD posStmts; // Position statements supported
408 UDWORD scrollConcurrency; // Concurrency control options supported for scrollable cursors
409 UDWORD scrollOptions; // Scroll Options supported for scrollable cursors
410 UDWORD staticSensitivity; // Indicates if additions, deletions and updates can be detected
411 UWORD txnCapable; // Indicates if the data source supports transactions
412 UDWORD loginTimeout; // Number seconds to wait for a login request
413 } dbInf;
414
415 // ODBC handles
416 HENV henv; // ODBC Environment handle
417 HDBC hdbc; // ODBC DB Connection handle
418 HSTMT hstmt; // ODBC Statement handle
419
420 // ODBC Error Inf.
421 char sqlState[20];
422 SDWORD nativeError;
423 char errorMsg[SQL_MAX_MESSAGE_LENGTH];
424 SWORD cbErrorMsg;
425 char errorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
426 int DB_STATUS;
427
428 //Error reporting mode
429 bool silent;
430
431 // Number of Ctable objects connected to this db object
432 unsigned int nTables;
433
434 // Inf. about logical data types VARCHAR, INTEGER, FLOAT and DATE.
435 // This inf. is obtained from the ODBC driver by use of the
436 // SQLGetTypeInfo() function. The key piece of inf. is the
437 // type name the data source uses for each logical data type.
438 // e.g. VARCHAR; Oracle calls it VARCHAR2.
439 SqlTypeInfo typeInfVarchar, typeInfInteger, typeInfFloat, typeInfDate;
440
441 // Public member functions
442 wxDB(HENV &aHenv, bool FwdOnlyCursors=(bool)TRUE);
443 bool Open(char *Dsn, char *Uid, char *AuthStr); // Data Source Name, User ID, Password
444 void Close(void);
445 bool CommitTrans(void);
446 bool RollbackTrans(void);
447 bool DispAllErrors(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
448 bool GetNextError(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
449 void DispNextError(void);
450 bool CreateView(const char *viewName, const char *colList, const char *pSqlStmt, bool attemptDrop=TRUE);
451 bool DropView(const char *viewName);
452 bool ExecSql(const char *pSqlStmt);
453 bool GetNext(void);
454 bool GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SDWORD FAR *cbReturned);
455 bool Grant(int privileges, const char *tableName, const char *userList = "PUBLIC");
456 int TranslateSqlState(const char *SQLState);
457 wxDbInf *GetCatalog(char *userID);
458 bool Catalog(const char *userID=NULL, const char *fileName = "Catalog.txt");
459 int GetKeyFields(char *tableName, wxColInf* colInf,int nocols);
460 wxColInf *GetColumns(char *tableName[], const char *userID=NULL);
461 wxColInf *GetColumns(char *tableName, int *numCols, const char *userID=NULL);
462 int GetColumnCount(char *tableName, const char *userID=NULL);
463 char *GetDatabaseName(void) {return dbInf.dbmsName;}
464 char *GetDataSource(void) {return dsn;}
465 char *GetUsername(void) {return uid;}
466 char *GetPassword(void) {return authStr;}
467 bool IsOpen(void) {return dbIsOpen;}
468 HENV GetHENV(void) {return henv;}
469 HDBC GetHDBC(void) {return hdbc;}
470 HSTMT GetHSTMT(void) {return hstmt;}
471 bool TableExists(const char *tableName, const char *userID=NULL, const char *path=NULL); // Table name can refer to a table, view, alias or synonym
472 void LogError(const char *errMsg, const char *SQLState = 0) {logError(errMsg, SQLState);}
473 bool SqlLog(enum sqlLog state, const char *filename = "sqllog.txt", bool append = FALSE);
474 bool WriteSqlLog(const char *logMsg);
475 DBMS Dbms(void);
476 bool FwdOnlyCursors(void) {return fwdOnlyCursors;}
477
478 }; // wxDB
479
480 // This structure forms a node in a linked list. The linked list of "DbList" objects
481 // keeps track of allocated database connections. This allows the application to
482 // open more than one database connection through ODBC for multiple transaction support
483 // or for multiple database support.
484
485 struct DbList
486 {
487 DbList *PtrPrev; // Pointer to previous item in the list
488 char Dsn[SQL_MAX_DSN_LENGTH+1]; // Data Source Name
489 wxDB *PtrDb; // Pointer to the wxDB object
490 bool Free; // Is item free or in use?
491 DbList *PtrNext; // Pointer to next item in the list
492 };
493
494
495 #ifdef __WXDEBUG__
496 #include "wx/object.h"
497 class CstructTablesInUse : public wxObject
498 {
499 public:
500 const char *tableName;
501 ULONG tableID;
502 class wxDB *pDb;
503 }; // CstructTablesInUse
504 #endif
505
506 // The following routines allow a user to get new database connections, free them
507 // for other code segments to use, or close all of them when the application has
508 // completed.
509
510 wxDB WXDLLEXPORT *GetDbConnection(DbStuff *pDbStuff, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS);
511 bool WXDLLEXPORT FreeDbConnection(wxDB *pDb);
512 void WXDLLEXPORT CloseDbConnections(void);
513 int WXDLLEXPORT NumberDbConnectionsInUse(void);
514
515 // This function sets the sql log state for all open wxDB objects
516 bool SqlLog(enum sqlLog state, const char *filename = "sqllog.txt");
517
518 // This routine allows you to query a driver manager
519 // for a list of available datasources. Call this routine
520 // the first time using SQL_FETCH_FIRST. Continue to call it
521 // using SQL_FETCH_NEXT until you've exhausted the list.
522 bool WXDLLEXPORT GetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDescMax,
523 UWORD direction = SQL_FETCH_NEXT);
524
525 #endif
wxWidgets (Impactor)