数据库结构:
id int()
username nvarchar(50)
password nvarchar(50)
addtime datetime
token nvarchar(50)
roleid int
一、程序中写for循环,实测一分钟写入数据17998条
二、直接在在数据库执行语句,每分钟179094条,速度快10倍
DECLARE @i int
SET @i = 1
WHILE (@i <=10000000)
BEGIN
INSERT INTO A_User(username,password,addtime,token,roleid)
VALUES('manage6'+CONVERT( CHAR(12), cast(ceiling(rand() * @i*10) as int) ),CONVERT( CHAR(12), cast(ceiling(rand() * @i) as int) ),'2016-11-08 05:01:40',CONVERT( CHAR(14), cast(ceiling(rand() * @i*100) as int) ),cast(ceiling(rand() * 6) as int))
SET @i = @i + 1
END
GO
对于写入千万级数据,即使上面第二种方法也需要10000000/179094=55.55分钟,不知道还有没有更快的方法