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Find highest salary among two tables


Posted Date: 26 Apr 2008    Resource Type: Code Snippets    Category: SQL
Posted By: @@@ Hyderabadi Biryani @@@       Member Level: Diamond
Rating:     Points: 2



The following sample sql query illustrates how to find the top salary between two tables.


								
SELECT TOP 1 sal
FROM (
SELECT MAX(sal) AS sal FROM sal1
UNION
SELECT MAX(sal) AS sal FROM sal2
) a ORDER BY sal DESC



The 2 tables in the above example are sal1 and sal2. This query can be extended to more than two tables also, just by having more UNIONs. "TOP 1 sal" construct helps pick the first entry in "sal" column.



Responses
Author: akhilesh chauhan    29 Apr 2008Member Level: Gold   Points : 2
SELECT Max(sal)
FROM (
SELECT MAX(sal) AS sal FROM sal1
UNION
SELECT MAX(sal) AS sal FROM sal2
) a


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