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SQL Query with more that one "SELECT TOP 1"

Posted on 2011-09-11
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Last Modified: 2012-05-12
Greetings,
I am trying to generate a SQL query where I can select more than one "TOP 1".

For instance, I might want the top 1 from one column and the top 1 from another column, both being in different rows.

SELECT TOP 1 'Column1' as x, TOP 1 'Column3' as y, Z FROM TableA WHERE Z LIKE '%str%'

Please let me know if this requires more explanation.  Thanks in advance!
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Question by:MaxKroy
  • 3
4 Comments
 
LVL 4

Accepted Solution

by:
degaray earned 500 total points
ID: 36520613
You can use two subqueries for that, see the code:

I hope it helps you

Cheers!
SELECT(
   SELECT TOP 1 'Column1' 
   FROM TableA WHERE Z LIKE '%str%)
   AS x, (
   SELECT TOP 1 'Column3'
   FROM TableA WHERE Z LIKE '%str%
   ) AS y

Open in new window

0
 
LVL 4

Expert Comment

by:degaray
ID: 36520624
Depending on the data on your tables you might need to add a LIMIT 1, 0

So this should be the code then.
SELECT(
   SELECT TOP 1 'Column1' 
   FROM TableA WHERE Z LIKE '%str% LIMIT 1,0
   ) AS x, (
   SELECT TOP 1 'Column3'
   FROM TableA WHERE Z LIKE '%str% LIMIT 1,0
   ) AS y

Open in new window

0
 
LVL 4

Expert Comment

by:degaray
ID: 36520627
Sorry like this:
SELECT(
   SELECT TOP 1 'Column1' 
   FROM TableA WHERE Z LIKE '%str% LIMIT 0, 1
   ) AS x, (
   SELECT TOP 1 'Column3'
   FROM TableA WHERE Z LIKE '%str% LIMIT 0, 1
   ) AS y

Open in new window

0
 

Author Closing Comment

by:MaxKroy
ID: 36520693
Thank you Obi-one. You are my only hope.
0

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