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regarding sql query


regarding sql query

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p.avinash689
p.avinash689
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i have 10 records in sql table . the records contains data as gender with male and female. please reply me with a query that can change male into female and female into male with a single query.
Lynn Pettis
Lynn Pettis
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update yourtable set
gender = case when gender = 'male' then 'female' when gender = 'female' then 'male' end




Cool
Lynn Pettis

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p.avinash689 (10/13/2013)
i have 10 records in sql table . the records contains data as gender with male and female. please reply me with a query that can change male into female and female into male with a single query.


Now that Lynn has thoughtfully provided a correct solution to your question, let me ask you: What happens if you run Lynn's query and one of the rows contains the value of "Other" in the gender column?


My mantra: No loops! No CURSORs! No RBAR! Hoo-uh!

My thought question: Have you ever been told that your query runs too fast?

My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.


Need to UNPIVOT? Why not CROSS APPLY VALUES instead?
Since random numbers are too important to be left to chance, let's generate some!
Learn to understand recursive CTEs by example.
Splitting strings based on patterns can be fast!
My temporal SQL musings: Calendar Tables, an Easter SQL, Time Slots and Self-maintaining, Contiguous Effective Dates in Temporal Tables
Koen Verbeeck
Koen Verbeeck
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p.avinash689 (10/13/2013)
i have 10 records in sql table . the records contains data as gender with male and female. please reply me with a query that can change male into female and female into male with a single query.


Do you work in a clinic where they provide mass gender altering surgery?



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Koen Verbeeck (10/14/2013)
p.avinash689 (10/13/2013)
i have 10 records in sql table . the records contains data as gender with male and female. please reply me with a query that can change male into female and female into male with a single query.


Do you work in a clinic where they provide mass gender altering surgery?


:-P


My mantra: No loops! No CURSORs! No RBAR! Hoo-uh!

My thought question: Have you ever been told that your query runs too fast?

My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.


Need to UNPIVOT? Why not CROSS APPLY VALUES instead?
Since random numbers are too important to be left to chance, let's generate some!
Learn to understand recursive CTEs by example.
Splitting strings based on patterns can be fast!
My temporal SQL musings: Calendar Tables, an Easter SQL, Time Slots and Self-maintaining, Contiguous Effective Dates in Temporal Tables
mister.magoo
mister.magoo
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This reminds me of an old sql challenge or similar test...

MM


select geometry::STGeomFromWKB(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