Saving the index??

Hi
I am doing a banking project and I need to check if there is a possibility of keeping record of the index position.

i'm using for loop, and i m doing a search returning account numbers of clients.
example account of person with idcard 123 is found at position 1, account of person with idcard 133 is found at position 2, etc...

can i keep record of the position where account numbers were found?

thanks:
eek:

you can store the positions in a variable or an array.