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Max from Multiple tables

Author

Topic

chiman

21 Posts

Posted - 2007-11-12 : 16:16:10

hi,
I have a query like below,

select max(batchNumber ) from Adjustments where store_Id = 8637
Union
select max(batchnumber) from batch b
inner join Document d on
d.Document_Id = b.General_Id and b.BatchType <> 'Warehouse' and b.TranTable='Document'

This gives me 2 rows,how ever i want the max on the result of this union.

Assume, the above returns
10
20

i want 20.

how to go about this?

Thanks

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2007-11-12 : 16:28:14

[code]
select max(batchNumber)
from
(
select max(batchNumber) as batchNumber
from Adjustments
where store_Id = 8637
union all
select max(batchnumber)
from batch b
inner join Document d
on d.Document_Id = b.General_Id
where b.BatchType <> 'Warehouse' and b.TranTable = 'Document'
) t
[/code]

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

chiman

21 Posts

Posted - 2007-11-12 : 16:29:34

Thanks a lot. This worked!

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