MySql存储过程未获取任何数据
我需要循环遍历游标,并在另一个表中插入新值 我有两张桌子:MySql存储过程未获取任何数据,mysql,stored-procedures,sqlfiddle,Mysql,Stored Procedures,Sqlfiddle,我需要循环遍历游标,并在另一个表中插入新值 我有两张桌子: CREATE TABLE peoples ( id int auto_increment primary key, name varchar(20), enabled varchar(1) ) / INSERT INTO peoples (name, enabled) VALUES ('john', 'F'), ('jane', 'T') / CREATE TABLE test ( id int,
CREATE TABLE peoples
(
id int auto_increment primary key,
name varchar(20),
enabled varchar(1)
)
/
INSERT INTO peoples
(name, enabled)
VALUES
('john', 'F'),
('jane', 'T')
/
CREATE TABLE test
(
id int,
logins int
)
/
我需要选择AllPeople enabled=T,并在第二个表“test”中插入一个新条目。我创建了一个存储过程:
CREATE PROCEDURE sp_a()
BEGIN
DECLARE p int;
DECLARE done INT DEFAULT FALSE;
DECLARE peoples_cur CURSOR FOR select p.id from peoples p where p.enabled='T';
OPEN peoples_cur;
REPEAT
FETCH peoples_cur INTO p;
IF NOT done THEN
INSERT INTO test
(id, logins)
VALUES
(p, '999');
END IF;
UNTIL done END REPEAT;
CLOSE peoples_cur;
END;
/
但我得到了一个错误:
No data - zero rows fetched, selected, or processed: CALL sp_a()
简单方法:
DROP PROCEDURE IF EXISTS sp_a;
DELIMITER $$
CREATE PROCEDURE `sp_a`()
BEGIN
INSERT INTO test (logins)
SELECT COUNT(id) AS l FROM peoples WHERE enabled = 'T';
END$$
CALL sp_a();
很好。但我只想插入检索到的id和一个作为登录名的数字。您的建议无效,因为名称不是logins类型。@StarsSky抱歉。五分钟。