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update fields from one field to another

Posted on 2010-11-30
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Last Modified: 2012-05-10
Hi
I have one table (Items) with the following details
Itemcode, ItemDescription, lastmaintdate

another table Maintenance
MaintReqID, MaintitemCode, MaintDate

I have to for one item multiple maintenance request in table maintenance I need to write a query to update lastmaintdate in table items with the recent date of the maintenance table of the same item.

can you help me with this
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Question by:nadermik
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3 Comments
 
LVL 58

Accepted Solution

by:
cyberkiwi earned 2000 total points
ID: 34237117
update items
set lastmaintdate = (select max(maintdate) from maintenancem m
where m.maintitemcode=items.itemcode)
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LVL 9

Expert Comment

by:s_chilkury
ID: 34237167
update [items]
set lastmaintdate =
(
      select top 1 maintdate from [maintenance]
      where items.itemcode = maintenance.maintitemcode
      and [whatever clause you need more]
      order by maintdate desc
)
0
 
LVL 23

Expert Comment

by:Rajkumar Gs
ID: 34237206
update i
set lastmaintdate = (select max(MaintDate) from  Maintenance where MaintitemCode = i.Itemcode)
from items i
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