简单的MySql游标创建

Posted 2020-09-17 荣耀的背后

 1 DROP PROCEDURE IF exists StatisticStore1;
 2 CREATE PROCEDURE StatisticStore1() 
 3 BEGIN
 4     DECLARE c_name VARCHAR(50);
 5     DECLARE c_id INT(6);
    -- 声明结束标志
 6     DECLARE i int default 1; 
 7     DECLARE b int default 0; 
 8     DECLARE cur CURSOR for SELECT name,id FROM tb_sort;
 9     DECLARE CONTINUE HANDLER FOR NOT FOUND SET b = 1;
10 -- 开启游标
11     OPEN cur;
12 
13     FETCH cur INTO c_name,c_id;
14     while b<>1 do
15            INSERT INTO tb_books (NAME,author,buytime,sort_id) VALUES (concat(c_name,‘下的图书‘,i),‘ACCP‘,now(),c_id);
16   FETCH cur INTO c_name,c_id;
17     END while;
18 -- 关闭游标
19   CLOSE cur;
20 END;
21 
22 call StatisticStore1();