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Table Access Order


Table Access Order

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Message
Kwex
Kwex
Old Hand
Old Hand (381 reputation)Old Hand (381 reputation)Old Hand (381 reputation)Old Hand (381 reputation)Old Hand (381 reputation)Old Hand (381 reputation)Old Hand (381 reputation)Old Hand (381 reputation)

Group: General Forum Members
Points: 381 Visits: 240
I got it wrong today ... as I completely forgot the role of "HASH" in the join statement. Grrrrr ....
Thomas Abraham
Thomas Abraham
SSCrazy
SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)

Group: General Forum Members
Points: 2737 Visits: 2255
Not only a great question, but a superb explanation. Thanks.

Please don't go. The drones need you. They look up to you.
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Britt Cluff
Britt Cluff
SSCommitted
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Group: General Forum Members
Points: 1801 Visits: 253
Good question, had to think a little. I was pretty sure it was A especially since there were no rows.

http://brittcluff.blogspot.com/
Cliff Jones
Cliff Jones
SSCarpal Tunnel
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Group: General Forum Members
Points: 4283 Visits: 3648
Very interesting question. Thanks for the explanation.
rfr.ferrari
rfr.ferrari
SSCommitted
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Group: General Forum Members
Points: 1537 Visits: 13628
Great question Paul!!!

Thanks!


rfr.ferrari
DBA - SQL Server 2008
MCITP | MCTS

remember is live or suffer twice!
the period you fastest growing is the most difficult period of your life!

Ken Wymore
Ken Wymore
SSCertifiable
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Group: General Forum Members
Points: 5052 Visits: 2373
Nice question, thanks!
chrisfradenburg
chrisfradenburg
SSCommitted
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Group: General Forum Members
Points: 1988 Visits: 2067
It's been good getting some of these harder questions that require knowing how SQL works. Thanks for taking the time to put them together.
Toreador
Toreador
SSCrazy
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Group: General Forum Members
Points: 2781 Visits: 8084
I was expecting to see "undetermined, could be either" as an option so guessed (wrongly as usual).
Learned something new - not sure how useful it is to know, but these things are always interesting Smile
Trey Staker
Trey Staker
Ten Centuries
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Group: General Forum Members
Points: 1274 Visits: 2788
Got it wrong Sad

Thanks for the question, eventhough I got it wrong I learned something. Great explanation!

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Paul White
Paul White
SSCoach
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Group: General Forum Members
Points: 15776 Visits: 11355
Toreador (9/20/2011)
Learned something new - not sure how useful it is to know, but these things are always interesting Smile

It depends. The average DBA can get by perfectly well with just a basic understanding of execution plans.

But who wants to be average?



Paul White
SQLPerformance.com
SQLblog.com
@SQL_Kiwi
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