On Jun 8, 7:59 pm, "lhaj.mer...@xxxxxxxxx" <lhaj.mer...@xxxxxxxxx> wrote: > i have 4 tables : > > date_table (date_id,.....) > A_table(A_table_id, something1,something2.........) > A1_table(A1_table_id references A_Table(A_Table_id),A11,A12........) > A2_table(A2_table_id references A_Table(A_table_id),A21,A22,.......) > > so i want to create a view with date_id,A_table_id,something1, > if something2=x then my view containts > (A1_table.A11 and A1_table.A12) > else it's containts (A2_table.A21 and A2_table.A22)) > > so my view depends of something2 value. > > I hope i'm specific > > Thx > Lhaj create view foobar as select date_id,A_table_id,something1 ,case when something2=x then A1_table.A11 else A2_table.A21 end as foo ,case when something2=x then A1_table.A12 else A2_table.A22 end as bar from (... etc., etc. ...)
