MySQL: Count then sort by the count total -


i know other posts talk this, haven't been able apply situation.

this have far.

select *  ccparts, ccchild, ccfamily pargc = '26' ,    parchild = chiid ,    chifamily = famid  order famname, chiname

what need see total number of ccparts same ccfamily in results. then, sort total.

it looks close want:

select f.famid, f.famname, pc.parcount (     select c.chifamily famid, count(*) parcount            ccparts p       join ccchild c on p.parchild = c.chiid     p.pargc ='26'      group c.chifamily   ) pc   join ccfamily f on f.famid = pc.famid order pc.parcount

the inline view (between parentheses) headliner: grouping , counting. note not need join table ccfamily there group family, table ccchild carries family information. if don't need family name (i.e. if id sufficient), can stick inline view alone, , there order count(*). outer query associates family name results.

additionally, mysql provides non-standard mechanism combine outer query inline view, in case doesn't either clarity or concision. query provided should accepted sql implementation, , it's advantage learn such syntax , approaches first.


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