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Foiled By SQL Azure Again

BSavoie

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January 21, 2011 at 11:46 pm

#230680

Anybody know of a good alternative for a "tally table" on SQL Azure? Like most things useful, this is not supported on SQL Azure:
SELECT Number N FROM master..spt_values WHERE TYPE='P'
.

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BSavoie SSCertifiable Points: 6309 More actions · Answer 1

Here's my obvious, brute force answer. Sure seems slow though

DECLARE @Tally TABLE ( Number int)

DECLARE @ThisNum int

SET @ThisNum = 0

WHILE @ThisNum < 10000 BEGIN

INSERT INTO @Tally(Number) VALUES(@ThisNum)

SET @ThisNum = @ThisNum + 1

END

.

Lowell SSC Guru Points: 323522 More actions · Answer 2

i haven't tried Azure yet, but why can't you create a permanent Tally table and use that?

Lowell

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Dave Ballantyne SSC-Dedicated Points: 33667 More actions · Answer 3

some methods are discussed here

http://www.projectdmx.com/tsql/tblnumbers.aspx

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Jeffrey Williams SSC Guru Points: 90345 More actions · Answer 4

Here is another way to create your tally table:

--==== cteTally

With e1 (n)

As ( --=== Create Ten 1's

Select 1 Union All Select 1 Union All

Select 1 Union All Select 1)

, e2 (n) As (Select 1 From e1 a, e1 b)

, e3 (n) As (Select 1 From e2 a, e2 b)

, cteTally(n) As (Select row_number() over(Order By (Select n)) From e3)

Select *

From cteTally;

Jeffrey Williams
“We are all faced with a series of great opportunities brilliantly disguised as impossible situations.”

― Charles R. Swindoll

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BSavoie SSCertifiable Points: 6309 More actions · Answer 5

I guess a permanent tally makes the most sense. The cte tally table is nice for my situation, but I'll probably need it again before long. Thanks!

.

Robin Sasson Hall of Fame Points: 3359 More actions · Answer 6

I'd recommend a tally table. Keep the computations to a minimum as this will result in more compute cycles which will impact on the cost of the instance over time.

:exclamation: "Be brave. Take risks. Nothing can substitute experience." :exclamation:

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