Can i Use two qery hints in one SQL(Oracle)?

Hi,
Can i Use two Query hints in one SQL(Oracle)? USE_HASH and No_Merge
Thanks

user10916886 wrote:
Can I use like
/*+ USE_HASH(X,Y) NO_MERGE(X) */
will this work?Not really: NO_MERGE relates to mergeable views, not base tables. So whilst the USE_HASH may result in a hash join between the tables X and Y, USE_MERGE will be ignored for X.
As hoek says, however, HINTs should be a last resort only, and if they're to be used at all you're best to stay with those that don't involve explicit objects, like ALL_ROWS, FIRST_ROWS_10, etc.
user10916886 wrote:
Im my database, if i don't use query hints. The expalin plan uses Nested loops, hence the query takes a lot of time.You would be better trying the ALL_ROWS hint here, instead of USE_HASH.
Edit
The optimizer, however, will have chosen NESTED LOOPs where it did because it believed that to be the most efficient data retrieval path with the information that it had to hand. So, if your statistics are comprehensive and up-to-date, yet the optimizer is continually opting for the less efficient plan, there's something else wrong, and HINTs are only masking that problem in the short-term.

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Can i Use two qery hints in one SQL(Oracle)?

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