for example, if I turned on tracing with 10046 than I would get an OPTIMIZER_MISMATCH and another child cursor OUTLINE_MISMATCH The outlines do not match the existing child cursor. For example, if a user had created stored outlines previously for this command and they were stored in separate ...
Cursor with return clause Finally, we can declare a cursor with a return clause. Syntax The syntax for a cursor with a return clause in Oracle/PLSQL is: CURSOR cursor_name RETURN field%ROWTYPE IS SELECT_statement; Example For example, you could define a cursor called c3 as below. ...
A SQL trigger isa database object which fires when an event occurs in a database. We can execute a SQL query that will "do something" in a database when a change occurs on a database table such as a record is inserted or updated or deleted. For example, a trigger can be set on ...
A partial update may be performed only with Cursor.putCurrent. A null or partial DatabaseEntry output parameter may also be used in other cases, for example, to retrieve a partial key item. However, in practice this has limited value since the entire key is usually needed by the ...
CLOSE the cursor in the Execution Section before you end the PL/SQL Block. What is cursor explain implicit cursor with example? Implicit cursors areautomatically created by Oracle whenever an SQL statement is executed, when there is no explicit cursor for the statement. ... For INSERT operations...
in Oracle, i just define a cursor and doesn't need to know the result structure,any select result can be send to the cursor,for example: create or replace procedure test( rs out sys_refcurosr) begin open rs for select * from emp; end; ...
(2)If CURSOR_SPACE_FOR_TIMEis set to true, then a cursorcan be deallocated only when all application cursors associated with itsstatement are closed. In this case, Oracle Database need not verify thata cursor is in the cache because it cannot be deallocated while an applicationcursor associat...
With a CursorSpecification, an application can specify whether Oracle OLAP calculates the extent of a Cursor or the starting and ending positions of the current value of a child Cursor in the parent Cursor. If a CursorSpecification specifies those calculations, then the application can retrieve ...
An introduction is given to the use of the cursor in Oracle and an example demonstrating the explicit and theimplicit cursors is also provided. 本文介绍了Oracle游标的使用方法,并且给出了一个显式游标和隐式游标的使用实例。 参考词条 补充资料:游标卡尺 ...
(2)If CURSOR_SPACE_FOR_TIMEis set to true, then a cursorcan be deallocated only when all application cursors associated with itsstatement are closed. In this case, Oracle Database need not verify thata cursor is in the cache because it cannot be deallocated while an applicationcursor associat...