- char whereClause[DB_MAX_WHERE_CLAUSE_LEN];
-
- whereClause[0] = 0;
-
- // Build a select statement to query the database
- wxStrcpy(pSqlStmt, "SELECT ");
-
- // SELECT DISTINCT values only?
- if (distinct)
- wxStrcat(pSqlStmt, "DISTINCT ");
-
- // Was a FROM clause specified to join tables to the base table?
- // Available for ::Query() only!!!
- bool appendFromClause = FALSE;
- if (typeOfSelect == DB_SELECT_WHERE && from && wxStrlen(from))
- appendFromClause = TRUE;
-
- // Add the column list
- int i;
- for (i = 0; i < noCols; i++)
- {
- // If joining tables, the base table column names must be qualified to avoid ambiguity
- if (appendFromClause)
- {
- wxStrcat(pSqlStmt, queryTableName);
- wxStrcat(pSqlStmt, ".");
- }
- wxStrcat(pSqlStmt, colDefs[i].ColName);
- if (i + 1 < noCols)
- wxStrcat(pSqlStmt, ",");
- }
-
- // If the datasource supports ROWID, get this column as well. Exception: Don't retrieve
- // the ROWID if querying distinct records. The rowid will always be unique.
- if (!distinct && CanUpdByROWID())
- {
- // If joining tables, the base table column names must be qualified to avoid ambiguity
- if (appendFromClause)
- {
- wxStrcat(pSqlStmt, ",");
- wxStrcat(pSqlStmt, queryTableName);
- wxStrcat(pSqlStmt, ".ROWID");
- }
- else
- wxStrcat(pSqlStmt, ",ROWID");
- }
-
- // Append the FROM tablename portion
- wxStrcat(pSqlStmt, " FROM ");
- wxStrcat(pSqlStmt, queryTableName);
-
- // Sybase uses the HOLDLOCK keyword to lock a record during query.
- // The HOLDLOCK keyword follows the table name in the from clause.
- // Each table in the from clause must specify HOLDLOCK or
- // NOHOLDLOCK (the default). Note: The "FOR UPDATE" clause
- // is parsed but ignored in SYBASE Transact-SQL.
- if (selectForUpdate && (pDb->Dbms() == dbmsSYBASE_ASA || pDb->Dbms() == dbmsSYBASE_ASE))
- wxStrcat(pSqlStmt, " HOLDLOCK");
-
- if (appendFromClause)
- wxStrcat(pSqlStmt, from);
-
- // Append the WHERE clause. Either append the where clause for the class
- // or build a where clause. The typeOfSelect determines this.
- switch(typeOfSelect)
- {
- case DB_SELECT_WHERE:
- if (where && wxStrlen(where)) // May not want a where clause!!!
- {
- wxStrcat(pSqlStmt, " WHERE ");
- wxStrcat(pSqlStmt, where);
- }
- break;
- case DB_SELECT_KEYFIELDS:
- GetWhereClause(whereClause, DB_WHERE_KEYFIELDS);
- if (wxStrlen(whereClause))
- {
- wxStrcat(pSqlStmt, " WHERE ");
- wxStrcat(pSqlStmt, whereClause);
- }
- break;
- case DB_SELECT_MATCHING:
- GetWhereClause(whereClause, DB_WHERE_MATCHING);
- if (wxStrlen(whereClause))
- {
- wxStrcat(pSqlStmt, " WHERE ");
- wxStrcat(pSqlStmt, whereClause);
- }
- break;
- }
-
- // Append the ORDER BY clause
- if (orderBy && wxStrlen(orderBy))
- {
- wxStrcat(pSqlStmt, " ORDER BY ");
- wxStrcat(pSqlStmt, orderBy);
- }
-
- // SELECT FOR UPDATE if told to do so and the datasource is capable. Sybase
- // parses the FOR UPDATE clause but ignores it. See the comment above on the
- // HOLDLOCK for Sybase.
- if (selectForUpdate && CanSelectForUpdate())
- wxStrcat(pSqlStmt, " FOR UPDATE");
+ char whereClause[DB_MAX_WHERE_CLAUSE_LEN];
+
+ whereClause[0] = 0;
+
+ // Build a select statement to query the database
+ wxStrcpy(pSqlStmt, "SELECT ");
+
+ // SELECT DISTINCT values only?
+ if (distinct)
+ wxStrcat(pSqlStmt, "DISTINCT ");
+
+ // Was a FROM clause specified to join tables to the base table?
+ // Available for ::Query() only!!!
+ bool appendFromClause = FALSE;
+ if (typeOfSelect == DB_SELECT_WHERE && from && wxStrlen(from))
+ appendFromClause = TRUE;
+
+ // Add the column list
+ int i;
+ for (i = 0; i < noCols; i++)
+ {
+ // If joining tables, the base table column names must be qualified to avoid ambiguity
+ if (appendFromClause)
+ {
+ wxStrcat(pSqlStmt, queryTableName);
+ wxStrcat(pSqlStmt, ".");
+ }
+ wxStrcat(pSqlStmt, colDefs[i].ColName);
+ if (i + 1 < noCols)
+ wxStrcat(pSqlStmt, ",");
+ }
+
+ // If the datasource supports ROWID, get this column as well. Exception: Don't retrieve
+ // the ROWID if querying distinct records. The rowid will always be unique.
+ if (!distinct && CanUpdByROWID())
+ {
+ // If joining tables, the base table column names must be qualified to avoid ambiguity
+ if (appendFromClause)
+ {
+ wxStrcat(pSqlStmt, ",");
+ wxStrcat(pSqlStmt, queryTableName);
+ wxStrcat(pSqlStmt, ".ROWID");
+ }
+ else
+ wxStrcat(pSqlStmt, ",ROWID");
+ }
+
+ // Append the FROM tablename portion
+ wxStrcat(pSqlStmt, " FROM ");
+ wxStrcat(pSqlStmt, queryTableName);
+
+ // Sybase uses the HOLDLOCK keyword to lock a record during query.
+ // The HOLDLOCK keyword follows the table name in the from clause.
+ // Each table in the from clause must specify HOLDLOCK or
+ // NOHOLDLOCK (the default). Note: The "FOR UPDATE" clause
+ // is parsed but ignored in SYBASE Transact-SQL.
+ if (selectForUpdate && (pDb->Dbms() == dbmsSYBASE_ASA || pDb->Dbms() == dbmsSYBASE_ASE))
+ wxStrcat(pSqlStmt, " HOLDLOCK");
+
+ if (appendFromClause)
+ wxStrcat(pSqlStmt, from);
+
+ // Append the WHERE clause. Either append the where clause for the class
+ // or build a where clause. The typeOfSelect determines this.
+ switch(typeOfSelect)
+ {
+ case DB_SELECT_WHERE:
+ if (where && wxStrlen(where)) // May not want a where clause!!!
+ {
+ wxStrcat(pSqlStmt, " WHERE ");
+ wxStrcat(pSqlStmt, where);
+ }
+ break;
+ case DB_SELECT_KEYFIELDS:
+ GetWhereClause(whereClause, DB_WHERE_KEYFIELDS);
+ if (wxStrlen(whereClause))
+ {
+ wxStrcat(pSqlStmt, " WHERE ");
+ wxStrcat(pSqlStmt, whereClause);
+ }
+ break;
+ case DB_SELECT_MATCHING:
+ GetWhereClause(whereClause, DB_WHERE_MATCHING);
+ if (wxStrlen(whereClause))
+ {
+ wxStrcat(pSqlStmt, " WHERE ");
+ wxStrcat(pSqlStmt, whereClause);
+ }
+ break;
+ }
+
+ // Append the ORDER BY clause
+ if (orderBy && wxStrlen(orderBy))
+ {
+ wxStrcat(pSqlStmt, " ORDER BY ");
+ wxStrcat(pSqlStmt, orderBy);
+ }
+
+ // SELECT FOR UPDATE if told to do so and the datasource is capable. Sybase
+ // parses the FOR UPDATE clause but ignores it. See the comment above on the
+ // HOLDLOCK for Sybase.
+ if (selectForUpdate && CanSelectForUpdate())
+ wxStrcat(pSqlStmt, " FOR UPDATE");
projects / wxWidgets.git / blobdiff