Comments for Tom's weblog

Comment on Drop all foreign keys by Kristof Elst

Kristof Elst — Mon, 16 Jan 2012 08:51:38 +0000

Thanks for your article.

Here’s another way to do it, without resorting to a blighted cursor.

http://www.sentientbeings.com/2012/01/drop-all-foreign-keys-on-a-database-and-optionally-drop-all-tables/

Comment on Drop all foreign keys by rajendra.more999@hotmail.com

rajendra.more999@hotmail.com — Sat, 12 Nov 2011 11:07:34 +0000

Thanks Really working …

Comment on ABC News fail by your lovely wife

your lovely wife — Sat, 17 Sep 2011 23:49:28 +0000

True. It is astounding to me how often the reporters don’t really understand the subject or people they are reporting on. Earlier this month a news story from the same network had a reporter interviewing a young transgender person. The reporter clearly had no understanding of what transgender means, nor the ability to follow what the interviewee was saying. A shame that the reporter couldn’t be bother to do the simplest homework before the interview, and was more interested in the prurient than in the important. A bigger shame that the editors at the network aren’t previewing and checking national reports for accuracy.

Comment on Drop all foreign keys by tom

tom — Sat, 17 Sep 2011 00:57:00 +0000

Going to have try this script next time this problem comes up, thanks!

Comment on Drop all foreign keys by Noor

Noor — Fri, 15 Jul 2011 13:34:01 +0000

Its better to disable foreign keys. If you want to disable all constraints in the database just run this code:
– disable all constraints
EXEC sp_msforeachtable “ALTER TABLE ? NOCHECK CONSTRAINT all”

– enable all constraints
exec sp_msforeachtable @command1=”print ‘?’”, @command2=”ALTER TABLE ? WITH CHECK CHECK CONSTRAINT all”

Comment on Drop all foreign keys by Arno

Arno — Wed, 13 Jul 2011 05:33:29 +0000

Added some brackets for the “weird” table names:

–ENJOY
DECLARE @sqlForeignKeys VARCHAR(MAX)

SELECT @sqlForeignKeys = ISNULL(@sqlForeignKeys,”) +
‘ALTER TABLE dbo.[' + OBJECT_NAME(FK.parent_object_id) + '] DROP CONSTRAINT [' + FK.name + '];’ + CHAR(10)
FROM SYS.FOREIGN_KEYS FK

PRINT(@sqlForeignKeys)
–EXEC(@sqlForeignKeys)

Comment on Washington’s newest teacher! by the graduate...

the graduate... — Wed, 06 Jul 2011 02:14:51 +0000

It’s OFFICIALLY over!!!

My teaching certificates arrived, and the transcript (online) shows everything is complete. The diploma is “in the mail.”

And I am ready to CELEBRATE!!!!!

Comment on Washington’s newest teacher! by the graduate...

the graduate... — Sat, 11 Jun 2011 14:56:56 +0000

YIPPEE!!!!!

Comment on Drop all foreign keys by Timmy

Timmy — Tue, 17 May 2011 07:42:12 +0000

– ENJOY
DECLARE @sqlForeignKeys VARCHAR(MAX)

SELECT @sqlForeignKeys = ISNULL(@sqlForeignKeys,”) +
‘ALTER TABLE dbo.’ + OBJECT_NAME(FK.parent_object_id) + ‘ DROP CONSTRAINT ‘ + FK.name + ‘;’ + CHAR(10)
FROM SYS.FOREIGN_KEYS FK

PRINT(@sqlForeignKeys)
–EXEC(@sqlForeignKeys)

Comment on Drop all foreign keys by chris

chris — Wed, 04 May 2011 02:36:23 +0000

Combining ideas [1] and [7]

DECLARE @fkdel varchar(512)
DECLARE FkCrsr CURSOR FOR
SELECT ‘ALTER TABLE [' + TABLE_SCHEMA + '].[' + TABLE_NAME +
'] DROP CONSTRAINT [' + CONSTRAINT_NAME +']‘
FROM information_schema.table_constraints
WHERE CONSTRAINT_TYPE = ‘FOREIGN KEY’

open FkCrsr
fetch next from FkCrsr into @fkdel
while @@FETCH_STATUS = 0
begin
print @fkdel
exec (@fkdel)
fetch next from FkCrsr into @fkdel
end

close FkCrsr
deallocate FkCrsr
go