How does the type system works when there is interoperability between a COM and .Net, i mean what exactly happens there

247Customer,

How to get the count of distinct records. Please give me the query?

Value Labs,

Please give me the SP for the below scenario. I have two tables named Table1 and Table2...I need to fetch record by record from Table1 and insert the record in to table2 where the value in the sno column of the table1 is even number.

Value Labs,

I have a DataGrid in which two of the columns are editable...i want to update the backend table with the newly edited data of the datagrid. How to do this please help me.

MS Technosoft, Wipro,

What are Generics? Where do we use them.

Value Labs,

Please give me queries for the following 1. To get the count of duplicate records. 2. A query to delete the duplicate records.

247Customer,

1.What is the major advantage of polymorphism? Please don't simply say binding. Specify any other reason.

247Customer,

How to implement CAS in .Net?

247Customer,

Which among the following two is best and why? Abstract Class and Interface. What is the major difference in between those two except the discrete methods and methods with function definition.

247Customer,

What is App Pool and App Domain? What is the difference between the two.

247Customer,

1. How to restrict a class from allowing to create only one object. I.e., one should be allowed to create only one object of the class type.

247Customer, FinEngine, TCS,

2. I've a class Parent Class A and a Derived Class B. Here is a scenario. I've an instance of Class A as objA and an instance of Class B as objB. I can refer a child class variable as objB=objA, but cannot do objA=objB what is the reason?

247Customer,

It was told that .Net 2.0 Framework has got it's in built webserver. Does it mean that it doesn't need IIS? What is the significance of Front Page Server Extensions in creating or hosting a Web Application in .net?

247Customer, Concentrix, Wipro,

What is the difference between a web custom control,web user control and a web part.

247Customer,

please tell me the query to get details of the employee having the second largest salary

247Customer,