Posted by Erland Sommarskog on 02/23/06 01:29

Madhivanan (madhivanan2001@gmail.com) writes:
> Why does select * from @t returns 32 rows?
> I expected it to return 28 rows only

Watch this part of the output:


(1 row(s) affected)


(1 row(s) affected)


(2 row(s) affected)


(4 row(s) affected)


(8 row(s) affected)


(16 row(s) affected)

See what is going on? David is doubling the number of rows he inserts
each time. That way the loops can run fewer iterations and be faster.



--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se

Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
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