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Jan 27, 2008

Does anybody can tell me how to check if cursor exists ?

 I have a "try and catch" blocks.

I want to destroy the cursor when error occurred and it jumps into "catch" block.

Before I destroy the cursor I want to check if it exists, because the error could occurred before I have declared or opened the cursor.

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Check If Cursor Exists

May 11, 2004

I declare a cusror named crInv inside a loop.
Since I open this cursor a lot of times I want to check if is already opened.
I try to use the Cursor_status function but it always returns -3.
The syntax is:

DECLARE crInv SCROL CURSOR FOR
SELECT Val1, Val2 FROM TABLE1 WHERE Val3=450

If Cursor_Status('local','crInv')>0 BEGIN
CLOSE crInv
DEALLOCATE crInv
END

This code is inside a loop.
If I PRINT Cursor_Status('local','crInv') before and after the DECLARE statement it always returns -3.
What is wrong??

Best regards,
Manolis

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Dec 24, 2007

Hi,
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Hi!

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Hi,

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Hi,

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Thanks!
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if No,

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Nov 26, 2007



What is the best way to check for an existing table in a db (i.e. check to be performed when creating a table)
I have came accross the following:



Code Block

IF EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE' AND TABLE_NAME='someTable')






and



Code Block
if not exists (select * from dbo.sysobjects where id = object_id('[someUser].[someTable]') and OBJECTPROPERTY(id, 'IsUserTable') = 1)





Note I want to work with tables that can have any name (unicode chars accepted);

I realise that INFORMATION_SCHEMA.TABLES is a view, and views are generally preffered, but why then does enterprise manager create the SQL found in the second example?

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Oct 5, 2006

Hello.



How can I check if a temporary table exists in the current context?



With normal tables I'd do a

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However, I can't do that with a temporary table. I'd have to go look at the sysobjects table in the tempdb database.



The problem is that for temporary tables, a suffix is added to the name to make it unique for each scope. I can't change the WHERE clause to name LIKE 'myTableName%' because this would return true if a temporary table with the same name exists in a different scope.



Any ideas?



Carlos

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Code:
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Code:
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