hi daniel, thanx a lot for the help. I'll definitely try creating a new table. Yeah the example is exactly what i need to achieve at present. Based on that i am planning to enhance my features. But what would the column 'acl' contain, will it contain the integer value based on the user privileges. I did'nt try yet as I am unable to understand the bitwise operation. Sorry if it seems rather stupid. thanx again jayesh --------------------------------- Yahoo! for Good Click here to donate to the Hurricane Katrina relief effort.