Cursor with parameters As we get more complicated, we can declare cursors with parameters. Syntax The syntax for acursor with parametersin Oracle/PLSQL is: CURSOR cursor_name (parameter_list) IS SELECT_statement; Example For example, you could define a cursor called c2 as below. ...
A cursor is a SELECT statement that is defined within the declaration section of your PLSQL code. We'll take a look at three different syntaxes for cursors. Cursor without parameters (simplest) The basic syntax for a cursor without parameters is: CURSOR cursor_name IS SELECT_statement; For ...
--CURSOR FOR LOOP WITH PARAMETERS Declare Cursor c1(Dno number) is select * from emp where deptno = dno; begin for empree in c1(10) loop; dbms_output.put_line(empree.ename); end loop; end; TRIGGERSTrigger is a stored procedure which is called implicitly by oracle engine whenever a ...
The syntax for the FETCH statement in Oracle/PLSQL is: FETCH cursor_name INTO variable_list; Parameters or Arguments cursor_name The name of the cursor that you wish to fetch rows. variable_list The list of variables, comma delimited, that you wish to store the cursor result set in.Exampl...
('&&plan_hash_value.');baseline_ref_cursor DBMS_SQLTUNE.SQLSET_CURSOR;BEGIN--create sql_plan_baseline for sql using plan from AWRDBMS_SQLTUNE.CREATE_SQLSET(:ss_name);openbaseline_ref_cursorforselectVALUE(p)fromtable(DBMS_SQLTUNE.SELECT_WORKLOAD_REPOSITORY(:b_snap_id, :e_snap_id,'sql_...
baseline_ref_cursor DBMS_SQLTUNE.SQLSET_CURSOR; BEGIN -- create sql_plan_baseline for sql using plan from AWR DBMS_SQLTUNE.CREATE_SQLSET(:ss_name); open baseline_ref_cursor for select VALUE(p) from table(DBMS_SQLTUNE.SELECT_WORKLOAD_REPOSITORY(:b_snap_id, :e_snap_id, ...
如果试图打开一个已经打开的游标,将出错: ORA-06511:PL/SQL:CURSOR ALREADY OPEN 我们可以这样: IF NOT C_NAME%ISOPEN THEN OPEN C_NAME; END IF; 五、从游标中取回数据 FETCH CURSOR_NAME INTO RECOR-LIST; 关闭游标:CLOSE CURSOR_NAME 六、实例: DECLARE MYNAME VARCHAR(22); CURSOR C_NAME IS SELECT ...
('&&plan_hash_value.');baseline_ref_cursor DBMS_SQLTUNE.SQLSET_CURSOR;BEGIN--create sql_plan_baseline for sql using plan from AWRDBMS_SQLTUNE.CREATE_SQLSET(:ss_name);openbaseline_ref_cursorforselectVALUE(p)fromtable(DBMS_SQLTUNE.SELECT_WORKLOAD_REPOSITORY(:b_snap_id, :e_snap_id,'sql_...
This method sets up a dynaset to access PLSQL cursor. The SQL statement should be a stored procedure or anonymous block. The Resulting dynaset is READONLY. Attempting to use SetSQL method results in error. The dynaset can be refreshed with new parameters as normal. ...
INVALID_CURSOR 在不合法的游标上进行操作 INVALID_NUMBER 内嵌的 SQL 语句不能将字符转换为数字 NO_DATA_FOUND 使用selectinto未返回行,或应用索引表未初始化的元素时 TOO_MANY_ROWS 执行selectinto时,结果集超过一行 ZERO_DIVIDE 除数为 0 SUBSCRIPT_BEYOND_COUNT 元素下标超过嵌套表或 VARRAY 的最大值 ...