Subject index keys
Author Duilio Foschi
I will often need to query a large database according the fields N_MOV,
Y_MOV, both integers, i.e. I will often need to query all the records that
have given values for N_MOV and Y_MOV.

To this purpose, I am going to build an index that has the 2 fields as keys.

I wonder if _the order_ by which I build the index can have any influence
on the query.

In other words, do the command

create index MyIndex on MyTable (N_MOV,Y_MOV)

and

create index MyIndex on MyTable (Y_MOV,N_MOV)

have equal results (also in terms of time) on my queries ?

Thank you

Duilio Foschi