Comments on: Derived Columns and IsSorted=True http://www.ssistalk.com/2007/03/07/derived-columns-and-issortedtrue/ Random thoughts and experiences with SSIS, by Phil Brammer Wed, 25 Jan 2012 10:27:44 -0600 http://wordpress.org/?v=2.9.2 hourly 1 By: Dae Seong Han http://www.ssistalk.com/2007/03/07/derived-columns-and-issortedtrue/comment-page-1/#comment-19 Dae Seong Han Sat, 07 Apr 2007 09:53:07 +0000 http://www.ssistalk.com/2007/03/07/derived-columns-and-issortedtrue/#comment-19 Hello. My name is Daeseong Han and new SQL Server MVP, Korean. Here is my new trick about this problem. http://www.sqlleader.com/mboard.asp?exec=view&strBoardID=DSHan&intSeq=1033 If you need to login my web site(sqlleader.com), use id and password - test / test. - D.S Han Hello.
My name is Daeseong Han and new SQL Server MVP, Korean.

Here is my new trick about this problem.

http://www.sqlleader.com/mboard.asp?exec=view&strBoardID=DSHan&intSeq=1033

If you need to login my web site(sqlleader.com), use id and password – test / test.

- D.S Han

]]> By: Jamie http://www.ssistalk.com/2007/03/07/derived-columns-and-issortedtrue/comment-page-1/#comment-6 Jamie Wed, 07 Mar 2007 23:13:28 +0000 http://www.ssistalk.com/2007/03/07/derived-columns-and-issortedtrue/#comment-6 No worries Phil. I have an issue with this actually. If you know that the output is still sorted by the sort keys on the input then it would help to be able to specify, via the advanced editor, that the output is sorted. Unfortunately you cannot do this because the derived column component is synchronous. Its not a bug, more of an anomoly. And we're stuck with it I'm afraid. You do have another option. Instead of replacing the original column add the derived value as a new column. The output will still be sorted although te new column will not be part of the Sort Key. In many cases though that won't be a problem. It depends on your scenario. -Jamie No worries Phil.

I have an issue with this actually. If you know that the output is still sorted by the sort keys on the input then it would help to be able to specify, via the advanced editor, that the output is sorted.

Unfortunately you cannot do this because the derived column component is synchronous.

Its not a bug, more of an anomoly. And we’re stuck with it I’m afraid.

You do have another option. Instead of replacing the original column add the derived value as a new column. The output will still be sorted although te new column will not be part of the Sort Key. In many cases though that won’t be a problem. It depends on your scenario.

-Jamie

]]>