MySQL学习笔记：循环生成5万行id连续的数据

# ---- mysql循环生成5万行id连续的数据 ----

/*
id
1
2
3
4
……
*/

CREATE TABLE tb(
    id INT(11) NOT NULL AUTO_INCREMENT,
    VALUE DATETIME DEFAULT NULL,
    PRIMARY KEY(id)
)ENGINE=INNODB AUTO_INCREMENT = 1 DEFAULT CHARSET=utf8;

SELECT * FROM tb;
DROP TABLE tb;

# 创建存储过程
DELIMITER $$
CREATE DEFINER = Hider@localhost PROCEDURE p(vRows INT)
    SQL SECURITY INVOKER
BEGIN
WHILE vRows > 0 DO
INSERT tb(VALUE) VALUES(NOW());
SET vRows = vRows - 1;
END WHILE;
END $$
DELIMITER ;

# 调用
START TRANSACTION;
CALL test.p(50000);
COMMIT;

SELECT COUNT(*) FROM tb;
SELECT MIN(id),MAX(id) FROM tb;

简单的存储过程循环，记得开事务，如果逐提交数据 将会导致速度很慢。

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END 2018-05-29 00:38:23