用SQL批量插入数据
用SQL批量插入数据
DECLARE @MyCounter INT
SET @MyCounter = 0
WHILE (@MyCounter <1000)
BEGIN
WAITFOR DELAY \'000:00:0\'
INSERT INTO guestbook
SELECT TOP 1 name, phone, email, title,time
FROM guestbook
ORDER BY id DESC
SET @MyCounter = @MyCounter + 1
END
另:
1,单条插入
INSERT INTO time_by_day
(time_id, the_date, the_year, month_of_year, quarter,day_of_month)
VALUES (\'1101\', \'1999-10-1\', \'1999\', \'10\', \'Q4\',\'1\')
2,单条插入:
INSERT INTO time_by_day
SELECT TOP 1 time_id + 1 AS time_id, the_date + 1 AS the_date, YEAR(the_date + 1)
FROM time_by_day
ORDER BY time_id DESC
3,循环插入：
DECLARE @MyCounter INT
SET @MyCounter = 0
WHILE (@MyCounter < 2)
BEGIN
WAITFOR DELAY \'000:00:10\'
INSERT INTO time_by_day
SELECT TOP 1 time_id + 1 AS time_id, the_date + 1 AS the_date, YEAR(the_date + 1)
FROM time_by_day
ORDER BY time_id DESC
SET @MyCounter = @MyCounter + 1
END
4,插入以时间为变量的数据
DECLARE @MyCounter INT
declare @the_date datetime
SET @MyCounter = 0
SET @the_date = \'1999-1-4\'
WHILE (@MyCounter < 200000)
BEGIN
WAITFOR DELAY \'000:00:10\'
insert into time_by_day (time_id,the_date)values(\'371\',@the_date)
SET @the_date = @the_date + 1
SET @MyCounter = @MyCounter + 1
END