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Minimum Value 3 Fields > 0


Minimum Value 3 Fields > 0

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dwain.c
dwain.c
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Ah yes, NULLIF... Forgot about that one.

That will work but we still need to hear from the OP their preferred return result for that case so it can be plugged into your version of my query.


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
texpic
texpic
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If all three are zero, desired result would be zero.



dwain.c
dwain.c
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texpic (9/12/2012)
If all three are zero, desired result would be zero.


What if all 3 are negative? Still zero?


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
ChrisM@Work
ChrisM@Work
SSCoach
SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)

Group: General Forum Members
Points: 16272 Visits: 19551
SELECT 
Id, A, B, C,
MinVal
FROM #MinAmt
CROSS APPLY (
SELECT MIN(a)
FROM (VALUES (A),(B),(C) ) v (a)
WHERE a > 0
) x (MinVal)



;-)

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
dwain.c
dwain.c
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Group: General Forum Members
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ChrisM@Work (9/13/2012)
SELECT 
Id, A, B, C,
MinVal
FROM #MinAmt
CROSS APPLY (
SELECT MIN(a)
FROM (VALUES (A),(B),(C) ) v (a)
WHERE a > 0
) x (MinVal)



;-)


And the referee throws down a red penalty flag!

This is the SQL 2005 forum!


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
ChrisM@Work
ChrisM@Work
SSCoach
SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)SSCoach (16K reputation)

Group: General Forum Members
Points: 16272 Visits: 19551
dwain.c (9/13/2012)
ChrisM@Work (9/13/2012)
SELECT 
Id, A, B, C,
MinVal
FROM #MinAmt
CROSS APPLY (
SELECT MIN(a)
FROM (VALUES (A),(B),(C) ) v (a)
WHERE a > 0
) x (MinVal)



;-)


And the referee throws down a red penalty flag!

This is the SQL 2005 forum!


Challenged! texpic always posts in the 2K8 forum!

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
raghava_tg
raghava_tg
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Group: General Forum Members
Points: 102 Visits: 317
Try This

:-)

select Id,MIN(a) from (
select a.id, a.a from #MinAmt a ,#MinAmt

union
select a.id, a.b from #MinAmt a ,#MinAmt
union
select a.id, a.c from #MinAmt a ,#MinAmt
) a where a>0 group by Id
Go


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