What is the difference between ado rdo and dao?

Answer 1

ADO is active x data object. It is used to access database with the help of data controls and objects as well. it is an extended form of RDO and DAO.

RDO is remote data object which is used to access server site data. data in this case reside on the sql server. and we use sql queries to access data. in this we write a sql command and then squ server processes it and gives back the result.

DAO is data access object. it is used to access data with the help of program and some data controls. it provides an extention to data controls and data bound controls. DAO helps in accessing data with various conditions or quries.