As the name suggests Cursor For Loop is a type of For loop provided by oracle PL/SQL which makes working with cursors in oracle database a lot easier by executing OPEN, FETCH & CLOSE Cursor statements implicitly in the background for you....
When Oracle Database executes a SQL statement, it stores the result set and processing information in an unnamedprivate SQL area. A pointer to this unnamed area, called acursor, lets youretrieve the rows of the result set one at a time.Cursor attributesreturn information about the state of t...
Oracle11g 之前,在缓存Session Cursor的哈希表的对应Hash Bucket中,Oracle会存储目标SQL对应的Parent Cursor的库缓存对象句柄地址,这意味着Oracle已经建立了目标SQL的Session Cursor与其Parent Cursor之间的联系,即Oracle可以通过Session Cursor找到对应的Parent Cursor,金额日可以找到对应的子游标中目标sql的解析树和执行计划。
CursorConfig config = new CursorConfig(); config.setDirtyRead(true); Cursor cursor = myDatabase.openCursor(txn, config); Modifications to the database during a sequential scan will be reflected in the scan; that is, records inserted behind a cursor will not be returned while records ...
(1)If CURSOR_SPACE_FOR_TIMEis set to false (the default), then a cursor can be deallocated from the library cache regardless ofwhether application cursors associated with its SQL statement are this case, Oracle Database must verify that the cursor containing the SQLstatement is in the library...
(1)If CURSOR_SPACE_FOR_TIMEis set to false (the default), then a cursor can be deallocated from the library cache regardless ofwhether application cursors associated with its SQL statement are open.In this case, Oracle Database must verify that the cursor containing the SQLstatement is in th...
Prior to Oracle Database 12cRelease 2 (12.2.0.1), immediate cursor invalidation was used. This parameter provides system or session level default for theDEFERREDorIMMEDIATEoption for theINVALIDATIONclause in DDL statements. When this parameter is set toDEFERRED, an application can take advantage of ...
Server Explorerを開いてHRをダブルクリックし、「Oracle Databaseへの接続」で作成したHRスキーマへの接続をオープンします。 connect_se.gifの説明 以前にパスワードを保存しなかった場合は、「Oracle Server Login」が開き、パスワードを入力できます。パスワードを以前に保存している場合は、すぐ...
Oracle 模式下开启 PS 和 cursor,SQL Audit 记录的 PARAMS_VALUE 是空的。 以下例子以 OceanBase 数据库 V3.2.3 BP8 (oceanbase-3.2.3.3-108000062023041511) 版本和 OceanBase Connector/J V2.4.1 版本为例进行说明。 创建测试方法 testPs()。 @Test public void testPs(){ Connection conn; Connection conn...
本文介绍 OceanBase 数据库 Oracle 模式下调用存储过程报错 cursor read uncommited data across commit/rollback not supported 的原因和解决方法。 问题描述 调用存储过程,报错如下。 ErrorCode = 600, SQLState = 0A000, Details = ORA-00600: internal error code, arguments: -4007, Not supported feature or...