使用 REPEAT 来打开游标读取数据代码,MYSQL代码库,德仔网

代码语言

代码分类

【MYSQL】使用 REPEAT 来打开游标读取数据

作者:Dezai.CN / 发布于2011/6/15/ 1021

<div>mysql>
mysql>
mysql> delimiter $$
mysql> CREATE PROCEDURE myProc (in_customer_id INT)
 -> BEGIN
 ->
 -> DECLARE l_first_name VARCHAR(30);
 -> DECLARE l_id INT;
 -> DECLARE l_city VARCHAR(30);
 -> DECLARE l_department_count INT;
 -> DECLARE no_more_departments INT;
 ->
 -> DECLARE dept_csr CURSOR FOR
 -> SELECT id,first_name, city
 -> FROM employee;
 ->
 -> DECLARE CONTINUE HANDLER FOR NOT FOUND SET no_more_departments=1;
 ->
 -> SET no_more_departments=0;
 -> OPEN dept_csr;
 -> dept_loop:REPEAT
 -> FETCH dept_csr INTO l_id,l_first_name,l_city;
 -> IF no_more_departments=0 THEN
 -> SET l_department_count=l_department_count+1;
 -> END IF;
 -> select l_id,l_first_name,l_city;
 -> UNTIL no_more_departments
 -> END REPEAT dept_loop;
 -> CLOSE dept_csr;
 -> SET no_more_departments=0;
 ->
 ->
 -> END$$
Query OK, 0 rows affected (0.00 sec)</div>

评论列表

本站所提供的代码，版权归原作者所有，若有侵犯作者版权，请与我们联系，我们将立即删除或修改。谢谢!
本站所有代码发布及提供者。

试试其它关键字

同语言下

可能有用的

Dezai.CN贡献的其它代码(4037)