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nickspencer
Obsidian | Level 7
Hi all,
I have a sas dataset with around 15k record that I have to do an inner join with an Oracle table. I am doing a heterogeneous join but it is taking extremely long to complete even with options like readbuff, dbkey and multi_datasrc_opt=in.
Is there any other way I could run my program faster?

Thanks,
Nick
2 REPLIES 2
Patrick
Opal | Level 21

Load the SAS dataset into Oracle - eventually into a temporary table - to execute the join in-database.

This of course is only worth doing if the inner join will significantly reduce the volume meaning that the resulting table you will load into SAS is much smaller than the source table in Oracle.

Sajid01
Meteorite | Level 14

Hello @nickspencer 
Optimizing query performance depends on the details of your query and I have a general observation.
You are having a heterogeneous join. if your SAS dataset is the smaller one I would suggest try moving to a temporary table into Oracle and then perform the join and fetch the result.
Do not forget to delete the temporary table in oracle. 
Again the devil is in the detail.

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