Title: Message
Hello
list.
I have recently been
tasked with trying to optimize some slow performing queries (Oracle 8.1.7) for
an applicationthat generates reports in a data warehouse type
environment. I have noticed in most of the queries that the table names
have been aliased, but not
Wendy - I think the difference between using an alias or not is negligible.
My reasoning is that this would be easy to test (good idea if you have a
moment) and there are enough picky Oracle developers that if this was not
negligible, people would have been bragging about this as their secret
Subject: Query tuning with tablename
alias
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Title: RE: Query tuning with tablename alias
but if you provide hints on such statements, you better be using aliases for hints .
Aliases are used for readability ... you either use the aliases or user tablename.column but not both ... world is already confusing enough ...
Raj
.
Hopper, Wendy
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wendy.hopper@ cc:
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tablename alias
:
"DUAL"."DUMMY": invalid identifier
SQL select dual.dummy from dual;
D-X
Waleed
-Original Message-From: Hopper, Wendy S
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Query tuning with tab
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this properly).
Regards,
Mark.
Hopper, Wendy
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