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wxWidgets/include/wx/db.h
George Tasker 02cf6fdd85 Fixed TablePrivileges() function (I HOPE!) so it will work with all supported databases 
All variables/parameters having to do with number of columns changed to be of type UWORD rather than int, avoiding compiler warnings and giant tables causing problems, and matching the types with the ODBC APIs


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9718 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2001-04-11 14:11:02 +00:00

758 lines
33 KiB
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///////////////////////////////////////////////////////////////////////////////
// Name: 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.
//
///////////////////////////////////////////////////////////////////////////////
/*
// SYNOPSIS START
// SYNOPSIS STOP
*/
#ifndef DB_DOT_H
#define DB_DOT_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
// Use this line for wxWindows v1.x
//#include "wx_ver.h"
// Use this line for wxWindows v2.x
#include "wx/version.h"
#if wxMAJOR_VERSION == 2
#ifdef __GNUG__
#pragma interface "db.h"
#endif
#endif
#include "wx/setup.h"
#if wxMAJOR_VERSION == 2
extern "C" {
#ifdef __VISUALC__
// 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
#include "wx/isql.h"
#include "wx/isqlext.h"
#endif
}
#else // version == 1
extern "C" {
#ifdef __VISUALC__
// 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
#include "sql.h"
#include "sqlext.h"
#include "odbcinst.h"
#else
#include "iodbc.h"
#include "isqlext.h"
#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
#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 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
const int wxDB_PATH_MAX = 254;
extern wxChar const *SQL_LOG_FILENAME;
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 WXDLLEXPORT 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 WXDLLEXPORT wxDbSqlTypeInfo
{
wxString TypeName;
SWORD FsqlType;
long Precision;
short CaseSensitive;
// short MinimumScale;
short MaximumScale;
};
class WXDLLEXPORT 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 WXDLLEXPORT 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 WXDLLEXPORT 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 WXDLLEXPORT 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
};
// 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 wxChar DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
class WXDLLEXPORT wxDb
{
private:
bool dbIsOpen;
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:
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);
bool Open(const wxString &Dsn, const wxString &Uid, const wxString &AuthStr); // Data Source Name, User ID, Password
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);
UWORD 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);
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 WXDLLEXPORT *wxDbGetConnection(wxDbConnectInf *pDbConfig, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS);
bool WXDLLEXPORT wxDbFreeConnection(wxDb *pDb);
void WXDLLEXPORT wxDbCloseConnections(void);
int WXDLLEXPORT wxDbConnectionsInUse(void);
// This function sets the sql log state for all open wxDb objects
bool 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 WXDLLEXPORT 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 WXDLLEXPORT *GetDbConnection(DbStuff *pDbStuff, bool FwdOnlyCursors=(bool)wxODBC_FWD_ONLY_CURSORS);
bool WXDLLEXPORT FreeDbConnection(wxDB *pDb);
void WXDLLEXPORT CloseDbConnections(void);
int WXDLLEXPORT NumberDbConnectionsInUse(void);
bool SqlLog(sqlLog state, const char *filename = SQL_LOG_FILENAME);
bool WXDLLEXPORT GetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDescMax,
UWORD direction = SQL_FETCH_NEXT);
#endif // Deprecated structures/classes/functions
#endif
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