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The DBMS_SQLSET package provides an interface to manage SQL tuning sets. This package provides the same subprograms, although in some cases with slightly different names, as the SQL tuning set subprograms in DBMS_SQLTUNE. The difference is that DBMS_SQLSET does not require the Oracle Tuning ...
(六)Set Operation The set operation UNION , INTERSECT and EXCEPT operate on relations and correspond to the relational algebra operations ∪,∩and – UNIONINTERSECTEXCEPT 1.UNION:用于合并两个或多个SELECT语句的结果集, 并且去除重复的行。它相当于数学中的并集操作。 INTERSECT:用于返回两个或多个SELECT...
(DM)已針對 StatementHandle呼叫SQLExecute、SQLExecDirect、SQLBulkOperations或SQLSetPos,並傳回SQL_NEED_DATA。 在針對所有數據執行中參數或數據行傳送數據之前,會呼叫此函式。 HY013記憶體管理錯誤無法處理函式呼叫,因為基礎記憶體物件無法存取,可能是因為記憶體不足的情況。
SQL_POS_OPERATIONS 2.0 一个SQLINTEGER 位掩码,枚举 SQLSetPos 中的支持操作。以下位掩码与标志一起使用,以确定支持哪些选项。SQL_POS_POSITION (ODBC 2.0)SQL_POS_REFRESH (ODBC 2.0)SQL_POS_UPDATE (ODBC 2.0)SQL_POS_DELETE (ODBC 2.0)SQL_POS_ADD (ODBC 2.0) SQL_PROCEDURE_TERM 1.0 包含过程数据源供...
STATISTIC# AND NAME LIKE 'PHYSICAL READS' AND VALUE > 0 ORDER BY QCSID, QCINST_ID, SERVER_GROUP, SERVER_SET; 查看并行进程的系统统计信息 代码语言:javascript 复制 SELECT NAME, VALUE FROM GV$SYSSTAT WHERE UPPER (NAME) LIKE '%PARALLEL OPERATIONS%' OR UPPER (NAME) LIKE '%PARALLELIZED%' ...
The input to the optimizer is a parsed query. The optimizer performs the following operations: The optimizer receives the parsed query and generates a set of potential plans for the SQL statement based on available access paths and hints. ...
(DM) SQLExecute, SQLExecDirect, SQLBulkOperations, or SQLSetPos was called for the StatementHandle and returned SQL_NEED_DATA. This function was called before data was sent for all data-at-execution parameters or columns. HY013 Memory management error The function call could not be processed ...
(DM)SQLExecute,SQLExecDirect,SQLBulkOperations, orSQLSetPoswas called for theStatementHandleand returned SQL_NEED_DATA. This function was called before data was sent for all data-at-execution parameters or columns. HY013Memory management errorThe function call could not be processed because the un...
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