I cannot find the answer in the Oracle documentation (http://
htm#3239) or in a search with google. And this must be easy to solve for
most of you experts.

I need to do an applet that make some SQL queries to a Oracle db. One of
them is to query an indexed table. It is a secondary index and the key is on
multiples columns: {command, article}. I guess the index was created with
something like:

create index i on commands(command, article);

I need to do a query of the form:

select * from commands where command = 10;

And i need to know if the index will be internally used to perform the query
or all the table will be scanned. In other words, is it possible to use a
single column to perform a search in a multiple columns index?

Thanks, X.