Στις Friday 04 July 2008 16:57:20 ο/η Jessica Richard έγραψε: > Could some one tell me how to check this pk/fy thing please? > smth like SELECT kid.relname as "KID",c.confrelid,c.conkey,c.confkey,f.relname as "DAD" FROM pg_catalog.pg_constraint c,pg_catalog.pg_class f,pg_catalog.pg_class kid WHERE c.contype = 'f' AND c.confrelid = f.oid AND c.conrelid=kid.oid AND f.relname='vessels'; could be your friend. substitute vessels with your "DAD" table, to find the kids. > >From the parent table, I can see only the primary key there, now I wan to know how many and what other foreign keys are referencing this primary key... did this check long time ago and totally forgot how I did it then.... > > Thanks a log, > Jessica > > > > -- Achilleas Mantzios