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Does the query engine guarantee index order of numbers table in the join..


Does the query engine guarantee index order of numbers table in the join..

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stephen mew
stephen mew
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Does the query engine guarantee index order of numbers table in the join
with reference to the second example cited in your article.
discussion round the campfire is speculating that if the index isnt in numeric order then the application in the second example will fail with eroneous replacements within the string..

Does anyone have any deeper knowledge to dispell this concern ?

Many Thanks

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Jeff Moden
Jeff Moden
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Not sure which article you're referring to but the answer is "No... not for SELECT's". Even though a SORT won't show up on the execution plan, the only way to guarantee the order (seems like it's much better in 2k5 than 2k) is to use an order by on "N" in the Numbers or Tally table.

--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.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

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