How should I store a GUID in Oracle?

Question

I am coming from the SQL server world where we had uniqueidentifier. Is there an equivalent in oracle? This column will be frequently queried so performance is the key.

Answer 1

If I understand the question properly, you want to generate a unique id when you insert a row in the db.
You could use a sequence to do this. link here
Once you have created your sequence you can use it like this:

INSERT INTO mytable (col1, col2) VALUES (myseq.NEXTVAL, 'some other data');