What should the Data Access Layer actual contain?

Question

Hi Trying to work on 3 tier. Need some inputs. Like what should the data access layer actually contain. What all methods can be written in the data access layer?

Kunal Naik · Answer

Hi Nethra Above maintain links are for 3-tier architechure in which each tier represent one layer so you can said that it is 3-tier or 3-layered architecure. you can also refer following link for data access layer. Click Here

Nethra R S · Answer

Hi Kunal That link is for 3 layered architecture.

Kunal Naik · Answer

Hi In 3 tier architechure we used - Data Access Layer (DAL) - Business Logic Layer (BLL) - Presentation Layer Data Access Layer contains all basic methods which we have to need like data set data bind data access from db etc. You can refer following links to know more about data access layer and 3-tier architecture. It might helps you Link1 Link2 Link3

Nethra R S · Answer

Hi I want to know exactly what methods and what all can be written in the data access layer?

Scott Lysle · Answer

In basic terms you are talking about the accessor and mutator methods that read and write data operating against the repository.