Hi, I am interested in developing a web application to which I can attach any of db like mysql,access,sql server,oracle ... as it is there in most of projects where during the installation we select any of optional db. how to write such a code which can work with all of databases. ____________________________________________________________________________________ Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 [Non-text portions of this message have been removed]