mysql - Multiple table query with wrong rows -


i want query 2 tables resulting query has more rows should be.

my statement is:

 select *  deal d, item  d.dealstate = 'accepted' ,       ((d.owner = 'username1') or        (d.itemid = i.itemid , i.owner = 'username1')) ,         d.deadline < now()

with statement want user's active deals. deal table has owner (the requester), dealid, itemid, creationdate, dealstate, deadline, explanation , item table has owner (the owner of item), itemid, itemname, description.

the problem want query 1 result. because 'username1' has 1 deal. query 10 rows, each of items matched deal. thought using "join" if user not owner of item, item table won't used. then, should do?

i hope i'm clear enough.

your query doesn't join correctly 2 tables because d.itemid = i.itemid isn't true in wrote. try 

select * deal d, item d.dealstate = 'accepted' , d.itemid = i.itemid , ((d.owner = 'username1') or ( i.owner = 'username1')) , d.deadline < now();

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