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Message Posted: Thu, 04 Apr 2002 @ 15:44:43 GMT
| Subj: || || Re: On Join Index Creation |
| From: || || Geoffrey Rommel |
| ||To avoid the ambiguity problem the alias works fine, but the question is why should there be an ambiguity when i have qualified the
columns to their respective tables - as "t1.a","t2.a","t1.b","t2.b"?|| |
Because the join index is also treated as a "table" and therefore must have distinct column names. You are, in effect, trying to
create a table with columns named AA, B, B, and A.