Answer / alok saxena

Data Access layer is actually a part of Architecture layer.
It has 2 tier,3 tier or N tier Layer. Generally we use 3
tier Layer 1) Presentation layer,Business Logic layer and
then Data Access Layer. Data Access layer is a medium to
talk between database and Business Logic layer. It helps to
maintain flexibility,resuablity and even secuity also. In
security SQL Injection can be stopped with 3 iter
Archietcture.

Answer / nvns

This is the layer where we write the coding related to all
database operations in a class file/files.

Define connection string?

0 Answers  

---

what is data Adapter?

26 Answers   CMC, CSS, IBM,

---

Explain the difference in record set and dataset?

0 Answers  

---

Define Execute Reader?

0 Answers  

---

How can we add/remove row's in "datatable" object of "dataset"?

0 Answers  

---

What is the difference between the clone() and copy() methods of the dataset class?

0 Answers  

---

Does entity framework use ado.net?

0 Answers  

---

How to generate XML from a dataset and vice versa?

2 Answers  

---

Differentiate between Dataset and Recordset.

2 Answers  

---

What is ole2 format?

0 Answers  

---

What is a dataview?

0 Answers  

---

What are the steps in connecting to database?

3 Answers   IBM, Microsoft,

---