Mohhamed, I think it would be easier if you keep all the data in one file through the year, just put the fiedls for Month & Year INDEX the file by year, month & employee number. All process with that file would be easier (except ofcourse if that file can't grow up 2 GB)
Against Stupidity the Gods themselves Contend in Vain - Johann Christoph Friedrich von Schiller
The only thing normal about database guys is their tables.