quick way to insert 1M record - SQL Server Forums

Please start any new threads on our new site at https://forums.sqlteam.com. We've got lots of great SQL Server experts to answer whatever question you can come up with.

All Forums

General SQL Server Forums

New to SQL Server Administration

quick way to insert 1M record

Author

Topic

tpiazza55
Posting Yak Master

162 Posts

Posted - 2010-05-28 : 11:57:58

I need to insert 1M for a test.

Is there a faster way to do it than this?

DECLARE @i int

set @i= 1

WHILE (@i <= 1000000)
BEGIN

insert into TempPin("ID", "Number") values(@i, 'mystyring')
SET @i = @i + 1
END

Kristen
Test

22859 Posts

Posted - 2010-05-28 : 11:59:59

Join/Cross join to Tally table

http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=47685

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2010-05-28 : 12:01:57

If you use version 2005 or later

One quick method is

Make ID as identity column and run

insert into TempPin(Number) values('mystyring')
GO 1000000

Madhivanan

Failing to plan is Planning to fail

robvolk
Most Valuable Yak

15732 Posts

Posted - 2010-05-28 : 12:38:16

This is faster and has lower transactional overhead:

DECLARE @i int
SET @i=1

INSERT INTO TempPin([ID], [Number]) VALUES(@i, 'mystyring')

WHILE @i < 1000000 BEGIN
	INSERT INTO TempPin([ID], [Number]) 
	SELECT ID+@i, 'mystyring' FROM TempPin
	WHERE ID <= 1000000-@i

	SELECT @i=Max([ID]) FROM TempPin
END

I'd recommend a clustered index on the ID column if you don't already have one (clustered primary key is also fine). It should improve the performance.

tpiazza55
Posting Yak Master

162 Posts

Posted - 2010-05-28 : 16:01:35

thanks everyone -- went with the join option

Subscribe to SQLTeam.com

SQLTeam.com Articles via RSS

SQLTeam.com Weblog via RSS

- Advertisement -

Resources