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Editorial Team
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Asked: 2026-05-27T01:17:41+00:00

The query is: select sum(value) from TAB where TimeStamp= { select max(TimeStamp) from TAB

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The query is:

select sum(value) 
  from TAB 
 where TimeStamp=
     {
         select max(TimeStamp)
           from TAB where col1=12 and col2=18
     }
   and col1=12 and col2=18;

I am trying to improve it by eliminating the sub query if possible.

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1 Answer

  1. Editorial Team

    Try this:

    select sum(value) 
  from TAB 
 where col1=12 and col2=18
 group by TimeStamp
 order by TimeStamp desc
 limit 1
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