mysql脚本写入批量的数据

这只是一个样例，可以按照这个模板进行修改生成自己需要的批量数据

 

1.建表

 
# 新建库
create database bigData;
use bigData;
 
 
#1 建表dept
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 ;  
 
 
#2 建表emp
CREATE TABLE emp  
(  
id INT UNSIGNED PRIMARY KEY AUTO_INCREMENT,  
empno MEDIUMINT UNSIGNED NOT NULL DEFAULT 0, /*编号*/  
ename VARCHAR(20) NOT NULL DEFAULT "", /*名字*/  
job VARCHAR(9) NOT NULL DEFAULT "",/*工作*/  
mgr MEDIUMINT UNSIGNED NOT NULL DEFAULT 0,/*上级编号*/  
hiredate DATE NOT NULL,/*入职时间*/  
sal DECIMAL(7,2) NOT NULL,/*薪水*/  
comm DECIMAL(7,2) NOT NULL,/*红利*/  
deptno MEDIUMINT UNSIGNED NOT NULL DEFAULT 0 /*部门编号*/  
)ENGINE=INNODB DEFAULT CHARSET=GBK ; 

2.设置参数log_bin_trust_function_creators

当开启二进制日志后(可以执行show variables like 'log_bin'查看是否开启)，
如果变量log_bin_trust_function_creators为OFF，那么创建或修改存储函数就会报
“ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL,
or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)”这样的错误
 
 
 
【解决方法】
show variables like 'log_bin_trust_function_creators';
set global log_bin_trust_function_creators=1;
 
# 这样添加了参数以后，如果mysqld重启，上述参数又会消失，永久方法：
 windows下my.ini[mysqld]加上log_bin_trust_function_creators=1
linux下    /etc/my.cnf下my.cnf[mysqld]加上log_bin_trust_function_creators=1

3.随机产生部门编号

#用于随机产生部门编号
DELIMITER $$
CREATE FUNCTION rand_num( ) 
RETURNS INT(5)  
BEGIN   
 DECLARE i INT DEFAULT 0;  
 SET i = FLOOR(100+RAND()*10);  
RETURN i;  
 END $$
 
 
#假如要删除
#drop function rand_num;

4.随机产生字符串

DELIMITER $$
CREATE FUNCTION rand_string(n INT) RETURNS VARCHAR(255)
BEGIN
 DECLARE chars_str VARCHAR(100) DEFAULT 'abcdefghijklmnopqrstuvwxyzABCDEFJHIJKLMNOPQRSTUVWXYZ';
 DECLARE return_str VARCHAR(255) DEFAULT '';
 DECLARE i INT DEFAULT 0;
 WHILE i < n DO
 SET return_str =CONCAT(return_str,SUBSTRING(chars_str,FLOOR(1+RAND()*52),1));
 SET i = i + 1;
 END WHILE;
 RETURN return_str;
END $$
 
#假如要删除
#drop function rand_string;

5.创建emp表中插入数据的存储过程

 
 
DELIMITER $$
CREATE PROCEDURE insert_emp(IN START INT(10),IN max_num INT(10))  
BEGIN  
DECLARE i INT DEFAULT 0;   
#set autocommit =0 把autocommit设置成0  
 SET autocommit = 0;    
 REPEAT  
 SET i = i + 1;  
 INSERT INTO emp (empno, ename ,job ,mgr ,hiredate ,sal ,comm ,deptno ) VALUES ((START+i) ,rand_string(6),'SALESMAN',0001,CURDATE(),2000,400,rand_num());  
 UNTIL i = max_num  
 END REPEAT;  
 COMMIT;  
 END $$
 
#删除
# DELIMITER ;
# drop PROCEDURE insert_emp;
 

6.创建dept表插入数据的存储过程

 
#执行存储过程，往dept表添加随机数据
DELIMITER $$
CREATE PROCEDURE insert_dept(IN START INT(10),IN max_num INT(10))  
BEGIN  
DECLARE i INT DEFAULT 0;   
 SET autocommit = 0;    
 REPEAT  
 SET i = i + 1;  
 INSERT INTO dept (deptno ,dname,loc ) VALUES ((START+i) ,rand_string(10),rand_string(8));  
 UNTIL i = max_num  
 END REPEAT;  
 COMMIT;  
 END $$ 
 
#删除
# DELIMITER ;
# drop PROCEDURE insert_dept;

7.调用存储过程，生成数据

DELIMITER ;
CALL insert_dept(100,10); 

#执行存储过程，往emp表添加50万条数据
DELIMITER ;
CALL insert_emp(100001,500000);