CURSOR <游标名称> IS <游标名称>%ROWTYPE; BEGIN OPEN <游标名称> LOOP FETCH <游标名称> INTO ; EXIT WHEN <游标名称>%NOTFOUND; <其它要执行的代码> END LOOP; CLOSE <游标名称>; END <存储过程名称>; / 代码例子: 复制内容到剪贴板 程序代码 TRUNCATE TABLE loop_test; DECLARE CURSOR ao_cur IS ...
OPEN cursor_name; -- Loop through the cursor LOOP -- Fetch a row from the cursor into the variables FETCH cursor_name INTO var_name1, var_name2, ...; -- Check if there is a row to fetch EXIT WHEN cursor_name%NOTFOUND; -- Process the fetched row ... END LOOP; -- Close the...
我们在Oracle存储过程中需要遍历一张表,应该怎样做。我想大多少的人第一个念头就是Cursor。 比如: create or replace procedure StudyCursor( resulst out integer ) is v_tablename varchar(30); v_tabletype varchar(11); cursor mycursor is select * from cat; begin open mycursor; loop fetch mycursor ...
Re: Loop Through CursorPosted by: Peter Brawley Date: November 30, 2015 11:46PM It's SQL, think sets not procedures. As RJames suggests, this job might be a lot easier with five simple SQL statements like ... insert into target_table select group_concat( col, ";" ) from ...
CREATE OR REPLACE PROCEDURE p_test_emp is CURSOR c1 is select empno, ename from emp;t_c1 c1%rowtype;err exception;begin open c1;loop FETCH c1 INTO t_c1;if (c1%found) then insert into emp_test (empno, ename) values (t_c1.empno, t_c1.ename);commit;else raise err;(...
Cursor for loop in Oracle,declarel_sqlvarchar2(123);--variablethatcontainsaqueryl_csys_refcursor;--cursorvariable(weakcursor).l_resyour_table%rowtype;--variablecontainingfetchingd...
plsql中常见的loop循环 Integer for loop for i in 1..10 loop …. end loop; Implicit cursor loop for c in (select ) loop …. end loop; While loop i:=5; while i >10 loop i:=i+1; ... end loop; Basic loop i:=5; loop
# MDEV-12098 sql_mode=ORACLE: Implicit cursor FOR loop # CREATE PROCEDURE p1 AS BEGIN FOR rec1 IN (SELECT 11 AS a, 'b1' AS b) LOOP SELECT rec1.a, rec1.b; rec1.a:= 11; rec1.b:= 'b1'; SELECT rec1.a, rec1.b; END LOOP; FOR rec0 IN (SELECT 10 AS a, 'b0' AS b)...
In this case, the cursorFOR LOOPdeclares, opens, fetches from, and closes an implicit cursor. However, the implicit cursor is internal; therefore, you cannot reference it. Note that Oracle Database automatically optimizes a cursorFOR LOOPto work similarly to aBULK COLLECTquery. Although your co...
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