- What is an interface?
- What do you know about web service?
- What is a nullable type?
- Difference between value type and reference type?
- Difference between hash table and array list?
- What is a web service?
- Diff between string and string builder?
8. Diff between user control and custom control. And how to use them?
Regarding the project:
1) Project explanation
2) What I have done in the project?
3) How asked about the database tables and how they are used in the .NET code
4) Currently what I am doing? For this I said there are some performance issues in the project so we are planning to redesign the project.
Then he asked how we are solving the issues?
- What is a trigger?
- What are various types of joins?
- What are DML and DDL commands?
- Employee table:
If country is having null values write a query which replaces null values with India?
Ans : Select Empid, empname ,place,city ,isnull(Country,’india’) from Employee
5. Different types of joins
6. Write a query for Self Join?