》批量插入数据脚本
表Sql：
CREATE TABLE dept(
id INT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
deptno MEDIUMINT UNSIGNED NOT NULL DEFAULT 0,
dname VARCHAR(20) NOT NULL DEFAULT '',
loc VARCHAR(13) NOT NULL DEFAULT ''
)ENGINE=INNODB DEFAULT CHARSET=GBK;
CREATE TABLE emp
(id INT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
empno MEDIUMINT UNSIGNED NOT NULL DEFAULT 0,
ename VARCHAR(20) NOT NULL DEFAULT '',
job VARCHAR(9) NOT NULL DEFAULT '',
mgr MEDIUMINT UNSIGNED NOT NULL DEFAULT 0,
hiredate DATE NOT NULL,
sal DECIMAL(7,2) NOT NULL,
comm DECIMAL(7,2) NOT NULL,
deptno MEDIUMINT UNSIGNED NOT NULL DEFAULT 0
)ENGINE=INNODB DEFAULT CHARSET=GBK;
随机产生字符串：
DELIMITER $$
CREATE FUNCTION rand_string(n INT) RETURNS VARCHAR(255)
BEGIN
DECLARE chars_str VARCHAR(100) DEFAULT 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
DECLARE return_str VARCHAR(255) DEFAULT '';
DECLARE i INT DEFAULT 0;
WHILE i<n DO
SET return_str=CONCAT(return_str,SUBSTRING(chars_str,FLOOR(1+RAND()*52),1));
SET i=i+1;
END WHILE;
RETURN return_str;
END $$
随机产生部门编号：
DELIMITER $$
CREATE FUNCTION rand_num()
RETURNS INT(50)
BEGIN
DECLARE i INT DEFAULT 0;
SET i= FLOOR(100+RAND()*10);
RETURN i;
END $$
(假如要删除：drop function rand_num;)
创建存储过程：
创建往emp 表中插入数据的存储过程：
DELIMITER $$
CREATE PROCEDURE insert_emp(IN START INT(10),IN max_num INT(10))
BEGIN
DECLARE i INT DEFAULT 0;
SET autocommit =0;
REPEAT
SET i = i+1;
INSERT INTO emp(empno,ename,job,mgr,hiredate,sal,comm,deptno) VALUES((START+i),rand_string(6),'SALESMAN',0001,CURDATE(),2000,400,rand_num());
UNTIL i=max_num
END REPEAT;
COMMIT;
END$$
往dept表添加随机数据：
DELIMITER $$
CREATE PROCEDURE insert_dept(IN START INT(10),IN max_num INT(10))
BEGIN
DECLARE i INT DEFAULT 0;
REPEAT
SET i = i+1;
INSERT INTO dept(deptno,dname,loc) VALUES ((START+i),rand_string(10),rand_string(8));
UNTIL i = max_num
END REPEAT;
COMMIT;
END $$
(如果下删除：DROP PROCEDURE insert_dept;）
调用存储过程：
（先把；分号为介绍符切换回来：DELIMITER ; ）
插入dept:
CALL insert_dept(100,10);
插入emp数据添加500000条数据；
CALL insert_emp(100001,500000);
查阅：
SELECT COUNT(*) FROM emp;
