I need to know about odbc connectivity , can c++ use all kinds of data base connectiviteis .
As far as I know, C++ can use all kinds of db connectivity. I prefer to use ADO myself. ADO (ActiveX Data Objects) allow you to connect to just about any data source, but with an easier interface than using ODBC. The specific technologies you spoke aboujt earlier were only pieces of the puzzle that didn't seem like you knew how they fitted together. Usually, if you're using a technology like Oracle, SQL Server, or MySQL, that is just your back-end that holds the actual database. SQL is the set of commands and syntax used through ODBC to perform the operations on the data at that back end. ADO, DAO, and OLE DB are higher level interfaces for working with ODBC.