[RESOLVED] Will making column "primary" key also make column "index" key?

[Volitics]

Hello;

I'm trying to optimize my database. One of my tables has a primary key called "id".

What I'm trying to figure out is if I also need to make the "id" column an "index" key.

Does making a column a primary key also turn the column into an index key?

Thanks.

[ahundiak]

For mysql the answer is yes. Not sure about other rdms's but probably so.

[Volitics]

ahundiak;

Thanks for the help.