SQL group by issue when i try to get some info -


i can not figure out: have table called importantarecords fields market, zip5, mhi, mhv, thetable , want group records zip5 have thetable = 'mg'… tried :

select a.market,a.zip5,count(a.zip5),a.mhi,a.mhv,a.thetable      (select * importantarecords thetable = 'mg')     group a.zip5

but gives me classic error not aggrefate function

and tried this:

select market,zip5,count(zip5),mhi,mhv,thetable importantarecords thetable = 'mg'     group zip5

and same thing…

any ?

you did not state database using if getting error columns not being in aggregate function, might need add columns not in aggregate function group by:

select market,   zip5,   count(zip5),   mhi,   mhv,   thetable  importantarecords  thetable = 'mg' group market, zip5, mhi, mhv, thetable;

if grouping additional columns alters result expecting, use subquery result:

select i1.market,   i1.zip5,   i2.total,   i1.mhi,   i1.mhv,   i1.thetable  importantarecords i1 inner join (   select zip5, count(*) total   importantarecords   thetable = 'mg'   group zip5 ) i2   on i1.zip5 = i2.zip5 i1.thetable = 'mg'

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