Hi,
I have a table with a,b,c,d,e,f,g,h,i,j,k. columns and i have an index on a,b columns!
There is a sql statement now with where a= ? and we are wondering if it could also be good to add a single index on just 'a' column!
doesn't help AT ALL? it does help in SOME CASES? or???
what do you think??
Thanks!
/Hesi