Query optimization

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Query optimization

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Jeff Moden SSC Guru Points: 1000539 More actions · Answer 1

Yep... "Read Committed" is the default on most of the other editions (At least Standard, Enterprise, and Developer's Editions... dunno about the others). Thanks for the tip on the Compact Edition...

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
"Change is inevitable... change for the better is not".

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)
Intro to Tally Tables and Functions

harshil Mr or Mrs. 500 Points: 590 More actions · Answer 2

You can use ISDATE() function to handle NULL values instead of using ISNULL

SELECT user_key User_id, update_date createDate

FROM accounting.dbo.user

WHERE user_key NOT IN

(

SELECT DISTINCT CONVERT(INT, RIGHT(vendor, LEN(vendor)-1)) user_key

FROM Prod.dbo.return_vendors)

AND ISDATE(update_date)=1

AND update_date <= GETDATE() - 1

)