Home Database Mysql Tutorial 用mysql储存过程批量插入数据

用mysql储存过程批量插入数据

Jun 07, 2016 pm 02:56 PM
mysql store batch insert data yesterday process

昨天写的shell脚本批量插入数据( mysql批量插入数据(更改版)和 mysql批量插入数据都是本人写的)在执行的过程中太慢,3000多条数据插入了2个多小时,这次用储存过程批量插入数据,一万条数据仅仅用了7分钟,主要是因为,shell脚本插入式每次都得打开数据库

昨天写的shell脚本批量插入数据( mysql批量插入数据(更改版)和 mysql批量插入数据都是本人写的)在执行的过程中太慢,3000多条数据插入了2个多小时,这次用储存过程批量插入数据,一万条数据仅仅用了7分钟,主要是因为,shell脚本插入式每次都得打开数据库,而用储存过程只需要打开一次数据库就行啦!
#数据表的结构为stu_id(学号) ,stu_name(姓名),stu_sex(性别),cla_id(班级编号),stu_phone(手机号)

drop procedure if exists insertt;#如果存在储存过程则删除
delimiter $$                     #创建一个储存过程
create procedure insertt()
begin
set @a=2000000001;     #学号
set @d=20000001;       #班级编号
set @e=18200000000;   #手机号
while @a<2000010001 do     #如果@a<2000010001则返回true,继续执行
set @b=rand_string(5);     #姓名,随即赋值,值为5位a-zA-Z的任意组合
set @c=rand_sex(1);           #性别,随即赋值,值为1位,0或者1
insert into students values(@a,@b,@c,@d,@e);
set @a=@a+1;
set @e=@e+1;
    if @a%100=0 
    then
        set @d=@d+1 ;
     end if;
end while;
end$$
delimiter ;

#执行存储过程插入数据
call insertt();

#创建一个随机产生字符串的函数
set global log_bin_trust_function_creators = 1;
DROP FUNCTION IF EXISTS rand_string;
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));#52代表在52个字母中随即找出一个
                                SET i = i +1;
                END WHILE;
                RETURN return_str;
END //
delimiter ; 

#创建一个随机产生字符串的函数,0和1随机出现
set global log_bin_trust_function_creators = 1;
DROP FUNCTION IF EXISTS rand_sex;
DELIMITER //   
CREATE FUNCTION rand_sex(n INT)
RETURNS VARCHAR(255)
BEGIN
                DECLARE chars_str varchar(100) DEFAULT '01';
                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()*2 ),1));
                                SET i = i +1;
                END WHILE;
                RETURN return_str;
END //
delimiter ; 
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