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select query


select query

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charipg
charipg
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i need a select query for below.

there is 3 date colums in a table.
how to find out the greatest value from these 3 columns.
LutzM
LutzM
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Sounds like homework.

If not, please provide sample data, expected result and what you've tried so far as described in the first link in my signature.



Lutz
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charipg
charipg
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selecting one greatest value from 3 coloumns.?
charipg
charipg
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selecting one greatest value from 3 coloumns in a table.?
LutzM
LutzM
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charipg (1/28/2010)
selecting one greatest value from 3 coloumns in a table.?

Yes.
How about sample data including your current query as requested before?



Lutz
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Florian Reischl
Florian Reischl
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Try MAX with an included CASE WHEN.

Greets
Flo


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charipg
charipg
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I am not able to provide the sample data.

can you pls provide the sample query?
Florian Reischl
Florian Reischl
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charipg (1/28/2010)
I am not able to provide the sample data.

can you pls provide the sample query?

?


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Blog: Things about Software Architecture, .NET development and T-SQL

How to Post Data/Code to get the best Help How to Post Performance Problems
LutzM
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charipg (1/28/2010)
I am not able to provide the sample data.

can you pls provide the sample query?


You don't have to provide your real data. Get the basic concept and transform it into a sample table with fake column names and fake values. But make sure it represents what you're struggling with.

Please remember we don't see what you see. So you have to help us help you.



Lutz
A pessimist is an optimist with experience.

How to get fast answers to your question
How to post performance related questions
Links for Tally Table , Cross Tabs and Dynamic Cross Tabs , Delimited Split Function
charipg
charipg
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Please correct the below query..........

select max(myDate) from

( select field_1 myDate from myTable

union all

select field_2 myDate from myTable

union all

select field_3 myDate from myTable)
Go


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