How to Find the Queries that are not hitting the indexes..

Guys,
Hope you all doin well.
Would you guys please tell me any view , or any resource that can help me to identify those SQL Statements that are not hitting the indexes properly, Causing the system to slow down at peak times.
Thanks
Rgrds
Y.Vo.

any resource that can help me to identify those SQL Statements that are not hitting the indexes properlyInteresting ! Is there any specific reason of looking only for those queries, which are not making proper use of indexes.
hare krishna
Alok

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