Comments on: SQL SERVER – Debate – Table Variables vs Temporary Tables – Quiz – Puzzle – 13 of 31

By: SQL SERVER – Weekly Series – Memory Lane – #012 « SQL Server Journey with SQL Authority

Sat, 19 Jan 2013 01:31:22 +0000

[...] SQL SERVER – Debate – Table Variables vs Temporary Tables – Quiz – Puzzle – 13 of 31 [...]

By: Anon

Anon — Fri, 24 Aug 2012 12:55:44 +0000

By: madhivanan

madhivanan — Wed, 23 May 2012 11:27:16 +0000

They are available in addtional notes

By: madhivanan

madhivanan — Wed, 23 May 2012 11:25:40 +0000

Search for “What is new in SQL Server 2008?” in Microsoft site

By: indira

indira — Wed, 09 May 2012 06:55:26 +0000

what is the difference between sql server2005 and sql server 2008?

By: indira

indira — Wed, 09 May 2012 06:54:31 +0000

what is the difference between temporary table and table variable

By: SQL SERVER – Using MAXDOP 1 for Single Processor Query – SQL in Sixty Seconds #008 – Video « SQL Server Journey with SQL Authority

Fri, 23 Mar 2012 01:31:00 +0000

[...] More on Errors: Difference Temp Table and Table Variable – Effect of Transaction Effect of TRANSACTION on Local Variable – After ROLLBACK and After COMMIT Debate – Table Variables vs Temporary Tables – Quiz – Puzzle – 13 of 31 [...]

By: SQL SERVER – Table Variables and Transactions – SQL in Sixty Seconds #007 – Video « SQL Server Journey with SQL Authority

Wed, 21 Mar 2012 01:31:54 +0000

By: Keith

Keith — Mon, 30 Jan 2012 21:13:34 +0000

On a whim I tried:
DBCC DropCleanBuffers
DBCC FreeProcCache

and that actually fixed it. I don’t want to do this every single time, as that would probably reduce my preformance in other areas. Any additional knowledge on why this might fix it would be welcome, as I could maybe put a more permenent fix in place, but at least things are moving forward again.

By: Keith

Keith — Mon, 30 Jan 2012 19:48:15 +0000

I just noticed that the forums remove my angle bracket code, making my above post illegible. my SQL statement was supposed to be
SELECT -FIELDLIST- INTO #Temp FROM -SQLQUERY-

By: Keith

Keith — Mon, 30 Jan 2012 19:45:22 +0000

Hi Dave, it seems every time I google a SQL issue, your site comes up, and it’s always very informative. If it doesn’t answer my problem directly, it normally points me in the right direction. I’m not a DB admin, and i’m not formally educated in database design, rather I only have what my years of forcing it to work have given me.
This week my issue is temp tables. I seem to have a problem with SQL express such that if my temp table goes beyond a certain size, it takes the server forever to get it done. This is very odd because I’m using something like

SELECT INTO #temp FROM

but what’s odd is that the takes about a second to retun 200 rows, is about 18 columns of ints, varchar(50)’s, and numeric(16,4)’s, no identity columns, indexes, or anything like that. It takes 2-3 minutes to generate and insert in to the tempt table. The execution plan reflects that all of the time is spent on the INSERT. The same thing happens if I switch to a table variable. I would include specifics, but I really think it has something to do with external factors from the statement itself. I’ve found a few forums with people having a similar issue, but no one helping them has been able to recreate it, leading me to belive it’s an environmental situation, and not the specific SQL.

Anyhow, if you’ve ever heard of anything like this, where an INSERT into a temp table takes an abnormal amount of time for a handfull of records, I’d love to know what it is. Thanks Dave.