DBMS_SQLSET.CAPTURE_CURSOR_CACHE ( sqlset_name IN VARCHAR2, time_limit IN POSITIVE := 1800, repeat_interval IN POSITIVE := 300, capture_option IN VARCHAR2 := 'MERGE', capture_mode IN NUMBER := MODE_REPLACE_OLD_STATS, basic_filter IN VARCHAR2 := NULL, sqlset_owner IN VARCHAR2 :=...
INTERSECT and MINUS set operations produce unduplicated results.All the SET operators share the same degree of precedence among them.Instead,during query execution, Oracle starts evaluation from left to right or from top to bottom.If explicitly parentheses are used, then the order may differ as ...
执行下面的命令 SQL> DBMS_STATS.SET_TABLE_PREFS(''SH'', ''CUSTOMERS'', ''PUBLISH'', ''false''); 下面哪项描述了上面命令的作用? A. CUSTOMERS 表的统计信息被锁定,不允许覆盖 B. 停止对CUSTOMERS表的自动统计信息收集 C. CUSTOMERS 表已经存在的统计信息变为失效状态,优化器无法使用该统计信息 D. ...
--查到具体session信息后,开始进行跟踪。 SYS@orcl150> exec dbms_system.set_sql_trace_in_session(5,19,true); PL/SQL procedure successfully completed. Session 1: 在session 1中进行一些操作. SQL> select xstatus,id,xid,xtype 2 from test1 3 where xid=2 4 and xstatus>0; XSTATUS ID XID X...
SQL> exec dbms_system.set_SQL_TRACE_in_session(9,437,true) PL/SQL procedure successfully completed. …. 可以等候片刻,跟踪session执行任务,捕获sql操作… …. 停止跟踪: SQL> exec dbms_system.set_SQL_TRACE_in_session(9,437,false) PL/SQL procedure successfully completed....
execute dbms_system.SET_SQL_TRACE_IN_SESSION(153,15,true); 启动sq跟踪 select s.sid,s.serial#,s.username,p.spid 根据sid, SERIAL#查询spid from v$session s,v$process p where s.paddr=p.ADDR / 根据显示的spid到C:\oracle\product\10.2.0\admin\orcl\udump中找文件orcl_ora_2020.trc ...
与Oracle相比,PolarDB PostgreSQL版(兼容Oracle)的DBMS_SESSION实施只是部分实施。仅支持DBMS_SESSION.SET_ROLE。 SET_ROLE SET_ROLE存储过程将当前会话用户设置为role_cmd中指定的角色。调用SET_ROLE存储过程之后,当前会话将使用分配到指定角色的权限。该存储过程的语法为: SET_ROLE(role_cmd) SET_ROLE存储过程将role...
(DM) SQLExecute 、 SQLExecDirect 、 SQLBulkOperations 或 SQLSetPos 已針對 與DescriptorHandle 相關聯並傳回SQL_NEED_DATA的 StatementHandle 呼叫。 在針對所有資料執行中參數或資料行傳送資料之前,會呼叫此函式。(DM) 針對與 DescriptorHandle 相關聯的連接控制碼呼叫非同步執行函式。 呼叫 SQLSetDescField...
(DM)SQLExecute,SQLExecDirect,SQLBulkOperations, orSQLSetPoswas called for theStatementHandlewith which theDescriptorHandlewas associated and returned SQL_NEED_DATA. This function was called before data was sent for all data-at-execution parameters or columns. ...
The SET command is used to customize SQL*Plus’ operations to your needs. For example: SET DEFINE OFF SET SERVEROUTPUT ON SIZE 1000000 - FORMAT WORD_WRAPPED SET NULL '***' Parameter Settings SET APPI[NFO] {ON| OFF |app_text}