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wxWidgets/include/wx/db.h

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///////////////////////////////////////////////////////////////////////////////
// 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, plus:
// Notice: This class library and its intellectual design are free of charge for use,
// modification, enhancement, debugging under the following conditions:
// 1) These classes may only be used as part of the implementation of a
// wxWindows-based application
// 2) All enhancements and bug fixes are to be submitted back to the wxWindows
// user groups free of all charges for use with the wxWindows library.
// 3) These classes may not be distributed as part of any other class library,
// DLL, text (written or electronic), other than a complete distribution of
// the wxWindows GUI development toolkit.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DB_H_
#define _WX_DB_H_
// BJO 20000503: introduce new GetColumns members which are more database independant and
// return columns in the order they were created
#define OLD_GETCOLUMNS 1
#define EXPERIMENTAL_WXDB_FUNCTIONS 1
#include "wx/version.h"
#if defined(__GNUG__) && !defined(__APPLE__)
#pragma interface "db.h"
#endif
#include "wx/setup.h"
#include "wx/defs.h"
#include "wx/string.h"
#if defined(__VISUALC__)
// we need to include standard Windows headers but we can't include
// <windows.h> directly when using MFC because it includes it itself in a
// different manner
#if wxUSE_MFC
#include <afxwin.h>
#else // !wxUSE_MFC
#ifndef STRICT
#define STRICT 1
#endif
#include <windows.h>
#include "wx/msw/winundef.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\wxWindows\src\makevc.env to the WINLIBS= line
//
#include "sql.h"
#include "sqlext.h"
#include "odbcinst.h"
#else
#if defined(__WINDOWS__) && defined(HAVE_W32API_H)
#include <windows.h>
#include "wx/msw/winundef.h"
#endif
// Use the ones from the library
extern "C" {
#include <sql.h>
#include <sqlext.h>
}
#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))
//# define SQL_C_BOOLEAN (sizeof(int) == 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
#ifndef SQL_C_BLOB
#ifdef SQL_LONGVARBINARY
#define SQL_C_BLOB SQL_LONGVARBINARY
#elif SQL_VARBINARY
#define SQL_C_BLOB SQL_VARBINARY
#endif
#endif
/*
#ifndef TRUE
#define TRUE true
#endif
#ifndef FALSE
#define FALSE false
#endif
*/
const int wxDB_PATH_MAX = 254;
WXDLLIMPEXP_DATA_ODBC(extern wxChar const *) SQL_LOG_FILENAME;
WXDLLIMPEXP_DATA_ODBC(extern 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_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
class WXDLLIMPEXP_ODBC wxDbConnectInf
{
private:
bool freeHenvOnDestroy;
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)
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 *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 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 MinimumScale;
short MaximumScale;
};
class WXDLLIMPEXP_ODBC wxDbColFor
{
public:
wxString s_Field; // Formated String for Output
wxString s_Format[7]; // Formated Objects - TIMESTAMP has the biggest (7)
wxString s_Amount[7]; // Formated Objects - amount of things that can be formatted
int i_Amount[7]; // Formated 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 columnSize, 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 columnSize;
SWORD bufferLength;
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
};
// 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.
WXDLLIMPEXP_DATA_BASE(extern wxChar)
DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
class WXDLLIMPEXP_ODBC wxDb
{
private:
bool dbIsOpen;
bool dbIsCached; // Was connection created by caching functions
wxString dsn; // Data source name
wxString uid; // User ID
wxString authStr; // Authorization string (password)
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(void);
bool getDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo);
bool setConnectionOptions(void);
void logError(const wxString &errMsg, const wxString &SQLState);
const wxChar *convertUserID(const wxChar *userID, wxString &UserID);
void initialize();
#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;
#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;
wxChar errorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
wxChar errorMsg[SQL_MAX_MESSAGE_LENGTH];
SDWORD 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 &Dsn, const wxString &Uid, const wxString &AuthStr, bool failOnDataTypeUnsupported=TRUE);
bool Open(wxDbConnectInf *dbConnectInf);
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 GetNext(void);
bool GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SDWORD 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;}
bool IsOpen(void) {return dbIsOpen;}
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;}
// 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;}
// 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)
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 DsnMax, wxChar *DsDesc,
SWORD DsDescMax, UWORD direction = SQL_FETCH_NEXT);
// Change this to 0 to remove use of all deprecated functions
#if wxODBC_BACKWARD_COMPATABILITY
//#################################################################################
//############### DEPRECATED functions for backward compatability #################
//#################################################################################
// 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 DsnMax, char *DsDesc, SWORD DsDescMax,
UWORD direction = SQL_FETCH_NEXT);
#endif // Deprecated structures/classes/functions
#endif // _WX_DB_H_
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