一个关于游标的问题
sql数据准备：
-
SQL code
DROP TABLE IF EXISTS T_User;
CREATE TABLE T_User(
id INT PRIMARY KEY,
age INT,
tname VARCHAR(20)
);
INSERT INTO T_User VALUE(1,11,'abc1');
INSERT INTO T_User VALUE(2,12,'abc2');
INSERT INTO T_User VALUE(3,13,'abc3');
INSERT INTO T_User VALUE(4,14,'abc4');
INSERT INTO T_User VALUE(5,15,'abc5');
INSERT INTO T_User VALUE(6,16,'abc6');
游标代码：
-
SQL code
CREATE PROCEDURE curdemo()
BEGIN
DECLARE age1 INT;
DECLARE id1 INT;
DECLARE Cur CURSOR FOR SELECT id,age FROM T_User;
OPEN Cur;
FETCH Cur INTO id1,age1;
WHILE @@fetch_status=0
BEGIN
UPDATE T_User SET age=age1+1 WHERE id=id1;
FETCH Cur INTO id1,age1;
END
CLOSE Cur;
DEALLOCATE Cur;
END
############################################################################
CREATE PROCEDURE curdemo1()
BEGIN
DECLARE age1 INT;
DECLARE id1 INT;
DECLARE Cur CURSOR FOR SELECT id,age FROM T_User;
DECLARE EXIT HANDLER FOR NOT FOUND CLOSE Cur;
OPEN Cur;
REPEAT
FETCH Cur INTO id1,age1;
UPDATE T_User SET age=age1+1 WHERE id=id1;
UNTIL done
END REPEAT;
CLOSE Cur;
DEALLOCATE;
END;
这两个游标都不对，我用的是Mysql5.1的数据库，老是报语句错误。
错误提示：
Query : CREATE PROCEDURE curdemo() BEGIN DECLARE age1 INT
Error Code : 1064
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ” at line 3
Execution Time : 00:00:00:000
Transfer Time : 00:00:00:000
Total Time : 00:00:00:000
….
很多，都是这类的错误。
谁能帮我解决一下，谢谢！！！！
delimiter //
CREATE PROCEDURE curdemo()
BEGIN
DECLARE age1 INT;
DECLARE id1 INT;
DECLARE Cur CURSOR FOR SELECT id,age FROM T_User;
OPEN Cur;
FETCH Cur INTO id1,age1;
WHILE @@fetch_status=0
BEGIN
UPDATE T_User SET age=age1+1 WHERE id=id1;
FETCH Cur INTO id1,age1;
END
CLOSE Cur;
DEALLOCATE Cur;
END//
delimiter ;
DELIMITER $$
CREATE PROCEDURE curdemo()
BEGIN
DECLARE age1 INT;
DECLARE id1 INT;
DECLARE done INT DEFAULT 0;
DECLARE Cur CURSOR FOR SELECT id,age FROM T_User;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
OPEN Cur;
FETCH Cur INTO id1,age1;
WHILE done=0 DO
UPDATE T_User SET age=age1+1 WHERE id=id1;
FETCH Cur INTO id1,age1;
END WHILE ;
CLOSE Cur;
END$$
DELIMITER ;
其它的自行修改
-
SQL code
delimiter //
CREATE PROCEDURE curdemo()
BEGIN
DECLARE age1 INT;
DECLARE id1 INT;
DECLARE Cur CURSOR FOR SELECT id,age FROM T_User;
OPEN Cur;
FETCH Cur INTO id1,age1;
WHILE @@fetch_status=0
BEGIN
UPDATE T_User SET age=age1+1 WHERE id=id1;
FETCH Cur INTO id1,age1;
END
CLOSE Cur;
DEALLOCATE Cur;
END//
delimiter ;
