MySQL Union query duplicate/group by problem -

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just learning union queries - timesaver - having trouble grouping.

i have following statement:

(select `shops`.shpuseradded username, count(`shops`.shpid) shpcount, "" prdcount `shops` group shpuseradded asc) union (select `products`.prduseradded username, "" shpcount, count(`products`.prdid) prdcount `products` group prduseradded asc)

but gives me results first query followed results of second query, without combining usernames:

username|mercount|prdcount          |       8| jane    |       1| derek   |       1| james   |      22|         |        |       3 jane    |        |       4   derek   |        |       5 james   |        |      21

i tried (but got #1248 - every derived table must have own alias):

select username, shpcount, prdcount ((select `shops`.shpuseradded username, count(`shops`.shpid) shpcount, "" prdcount `shops` group shpuseradded asc) union (select `products`.prduseradded username, "" shpcount, count(`products`.prdid) prdcount `products` group prduseradded asc)) group username asc

i can't seem figure out naming derived table(s) without wiping out data either shpcount or prdcount column - suggestions? i'm going feel stupid thereyago!

solved (really time)! :)

select users.username, products.prdcount, shops.shpcount  (     (         (select `shops`.shpaddu username `shops` group shpaddu asc)         union         (select `products`.prdaddu username `products` group prdaddu asc)     ) users )  left join  (select prdaddu username, count(*) prdcount `products` group prdaddu) products on users.username = products.username left join  (select shpaddu username, count(*) shpcount `shops` group shpaddu) shops on users.username = shops.username

not union -- in case it's join on subqueries:

select shpuseradded username, mercount, prdcount (select shpuseradded, count(*) shpcount shops group shpuseradded asc) s join (select prduseradded, count(*) prdcount products group prduseradded asc) p on (shpuseradded = prduseradded);

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