Sqlflatten

Question

Using Discoverer 10g, is there a way to remove the numbers generated as table and column aliases in SQL Inspector? I've already used the sqlflatten setting in the registry with little effect.

Answer 1

Hi Nirbhaya,
One thing that I would like to point out is that Discoverer does not always
give the exact sql that it executes in the background.
It tries to flatten the sql to make reading it easier.
I couple of things to look at:
1. What is your database optimizer mode. Discoverer only uses cost based
optimizer. So if your database is rule based then execution plan is different for
discoverer and sqlplus. Make sure your tables are analyzed.
2. I seen this a couple of times that customer has very bad performing
LOVs. When you run the report Discoverer builds the LOV and could take
up most of the processing time. In this case you can either optimize the
LOV query or build separate LOV tables that will retrieve your LOV record
quickly.
3. Check the explain plan in the Discoverer and compare that to the explain
plan in sqlplus.
4. Do a session level trace on your discoverer connection.
One thing to look out for is that discoverer desktop makes 2 database
connections. You need to find the correct database session to trace.
Regards
Roelie Viviersf