1、创建测试表

CREATE TABLE `mysql_genarate` (

`id` int(11) NOT NULL AUTO_INCREMENT,

`uuid` varchar(50) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=5999001 DEFAULT CHARSET=utf8;

2、创建一个循环插入的存储过程

CREATE DEFINER=`root`@`localhost` PROCEDURE `test_two1`( )

BEGIN

DECLARE i INT DEFAULT 0;

WHILE i < 3000 DO

INSERT INTO mysql_genarate ( uuid ) VALUES( UUID( ) );

SET i = i + 1;

END WHILE;

END

调用测试call test_two1(), 测试10000条数据耗时几分钟，如果是千万级数据，这个速度将无法忍受。

3、优化存储过程

使用批量插入的sql语句

CREATE DEFINER=`root`@`localhost` PROCEDURE `insertPro`( IN sum INT )

BEGIN

DECLARE count INT DEFAULT 0;

DECLARE i INT DEFAULT 0;

SET @exesql = concat( "insert into mysql_genarate(uuid) values" );

SET @exedata = "";

SET count = 0;

SET i = 0;

WHILE count < sum DO

SET @exedata = concat( @exedata, ",(UUID())" );

SET count = count + 1;

SET i = i + 1;

IF i % 1000 = 0 THEN

SET @exedata = SUBSTRING( @exedata, 2 );

SET @exesql = concat( "insert into mysql_genarate(uuid) values ", @exedata );

PREPARE stmt FROM @exesql;

EXECUTE stmt;

DEALLOCATE PREPARE stmt;

SET @exedata = "";

END IF;

END WHILE;

IF length( @exedata ) > 0 THEN

SET @exedata = SUBSTRING( @exedata, 2 );

SET @exesql = concat( "insert into mysql_genarate(uuid) values ", @exedata );

PREPARE stmt FROM @exesql;

EXECUTE stmt;

DEALLOCATE PREPARE stmt;

END IF;

END

调用 call insertPro(10000) ，耗时零点几秒，这个速度可以接受。

以上就是MySQL循环插入千万级数据的详细内容，更多关于MySQL循环插入的资料请关注聚米学院其它相关文章！