Advice on modifcation of Merge statements.

Hey,

I have a one set of Merge statements which does updates and inserts as per the matched and non matching values.Since this Merge statements are taking time for the process I need to modify the query.Please advice on the steps for modifying and I have not pasted any DDL because proabaly Mege statements are self expalnatory.

Please advice.

Thanks,

Santhosh

Please have look on the comment