mysql批量插入数据，sql语句批量插入，sql语句循环插入

创建数据表

CREATE TABLE `course` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(10) DEFAULT NULL COMMENT '课程名称',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=101 DEFAULT CHARSET=utf8mb4; 测试生成100条
DROP PROCEDURE IF EXISTS test_insert;
CREATE PROCEDURE test_insert()
BEGIN
DECLARE i INT; // 也可以这样写 DECLARE i INT DEFAULT 1;
SET i=1;
WHILE i <= 100 DO
INSERT INTO `course` (`name`) VALUES(CONCAT('课程',i));
SET i=i+1;
END WHILE;
END;
CALL test_insert(); 案例二
DROP PROCEDURE IF EXISTS test_insert;
CREATE PROCEDURE test_insert()
BEGIN
DECLARE x INT DEFAULT 1;
DECLARE y INT DEFAULT 1;
DECLARE z INT DEFAULT 1;
WHILE z<=80000 DO
INSERT INTO `student_score` (course_id,stu_id,score) VALUES(x,y,z);
SET x=x+1;
SET y=y+1;
SET z=z+1;
SET x = if(x > 101, 1, x+1);
SET y = if(y > 80001, 1, y+1);
END WHILE;
END;
CALL test_insert();