Hello,
Oracle 8.1.6 on Solaris 2.7.
Can any one provide me with information or a link regarding
performance of views across database links?
I am thinking of the case where instance A has a view defined
as "SELECT FLD1,FLD2,... FROM TABLE_T1@DBLINK".
Consider the case when a view such as this is referenced within
a sql statement that joins this view with other local tables and
also contains some WHERE conditions which reference a field in
TABLE_T1.
Are the entire contents of TABLE_T1 transferred across the network,
then the joins and where conditions are processed within the local
instance? Or is the WHERE condition applied in the remote instance,
and only rows which satisfy the condition are returned across the network?
I was under the impression that the former was true. Did the behaviour
change in some previous version?
Thanks to any responders.
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Author: Bill Becker
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