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ISNUMERIC
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ISNUMERIC
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jts_2003
jts_2003
Posted Wednesday, September 29, 2010 2:05 AM
Ten Centuries
Group: General Forum Members
Last Login: Today @ 2:26 AM
Points: 1,060,
Visits: 4,172
A good question that has taught me two things:
1. You can't trust SQL's ISNUMERIC function
2. You can build a recursive CTE - although I'm no sure I would want to
If anyone else has examples of CTE's I bet they'd make for some tricky questions?
Thanks
Post #994979
Hugo Kornelis
Hugo Kornelis
Posted Wednesday, September 29, 2010 3:49 AM
SSCertifiable
Group: General Forum Members
Last Login: Today @ 2:24 AM
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jts_2003 (9/29/2010)
2. You can build a recursive CTE - although I'm no sure I would want to
Recursive CTE'sare an invaluable tool when working with hierarchic data (like employee/supervisor relations, parts built of parts built of parts, genealogy data, etc). There are some examples of this in Books Online.
Hugo Kornelis, SQL Server MVP
Visit my SQL Server blog:
http://sqlblog.com/blogs/hugo_kornelis
Post #995028
Artur Komkov
Artur Komkov
Posted Wednesday, September 29, 2010 3:04 PM
Old Hand
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Last Login: Tuesday, May 14, 2013 9:38 AM
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Very nice question. And one more time I see that 'isnumeric' works in a way which is far away from our expectations. Always used custom made functions instead.
Post #995624
Enigma475
Enigma475
Posted Friday, October 08, 2010 9:03 AM
Right there with Babe
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Last Login: Wednesday, May 15, 2013 1:09 PM
Points: 778,
Visits: 164
Great question! Now that I know how "liberal" is numeric is, I will be more careful with it.
Thanks!!!
Post #1001383
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