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Old 05-06-09, 01:04
ratheeshknair ratheeshknair is offline
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Strange Tables

Hi Experts,

I have found some strange tables in my database


EXPLAIN_ARGUMENT
EXPLAIN_DIAGNOSTIC
EXPLAIN_DIAGNOSTIC_DATA
EXPLAIN_INSTANCE
EXPLAIN_OBJECT
EXPLAIN_OPERATOR
ADVISE_INDEX
ADVISE_INSTANCE
ADVISE_MQT
ADVISE_PARTITION
ADVISE_TABLE
ADVISE_WORKLOAD

Hope these are system tables.But its only in one DB other Db doesnot have this tables ..Why?

What are the use of these tables and are they system tables?

TIA
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Old 05-06-09, 01:54
Marcus_A Marcus_A is offline
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They are automatically crated the first time you use the Visual Explain in the Control Center. You can also create them with the DDL in $HOME/sqllib/misc/EXPLAIN.DDL

The tables are used for the Explain and Index Advisor features.
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Old 05-06-09, 02:29
ratheeshknair ratheeshknair is offline
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Thanks Marcus..

Can you please tell me how to select Visual Explain?
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Old 05-06-09, 02:43
stolze stolze is offline
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Have a look at the manuals: Visual Explain Tutorial
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Old 05-06-09, 08:22
ratheeshknair ratheeshknair is offline
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Thanks Stolze
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