what are the Difference between ASP.NET 2.0 and ASP.NET 3.5 | Multi Targeting in asp.net | what are the Asp.net 3.5 features

Here I will explain about differences between asp.net 2.0/3.0/3.5. Generally we will see the questions like difference between Asp.net 2.0, 3.0 and 3.5 but there is no Asp.net 3.0 version. We have a version of 3.0 .NET Framework.

Asp.net create watermark text for textbox in javascript

Introduction

In this article I will explain how to create or set watermark text for textbox using JavaScript.

Description:

One day I got requirement like showing watermark text in textbox to achieve this requirement I used JavaScript functionality for that first Design your aspx page like this 

Interview Questions Part-7 | What is a deadlock in SQL Server | What are “GRANT” and “REVOKE’ statements in SQL | How do you find the Second highest Salary in SQL Server

What is a deadlock in SQL Server?

Deadlock is a situation when two processes, each having a lock on one piece of data, attempt to acquire a lock on the other’s piece. Each process would wait indefinitely for the other to release the lock, unless one of the user processes is terminated.

Interview Questions Part-6 | What is @@ROWCOUNT in SQL | What is Difference between Commit and Rollback in SQL | What is Candidate key, alternate key and composite key in SQL | What are Isolation Levels in SQL | What is Lock Escalation in SQL Server

What is the Use of @@ROWCOUNT?

Returns the number of rows affected by the Query.

Ex:

UPDATE authors SET au_lname = 'Jones'

WHERE au_id = '999-888-7777'

IF @@ROWCOUNT = 0

print 'Warning: No rows were updated'

Interview Questions Part-5 | What is PRIMARY KEY Constraint in SQL Server | What is UNIQUE KEY Constraint | What is FOREIGN KEY Constraint | What is CHECK Constraint | What is NOT NULL Constraint in SQL Server ?

What is PRIMARY KEY Constraint in SQL Server?

Primary key constraint is used to uniquely identify each record in database table. It won’t allow repetition or duplication of data. Each table is having only one primary key constraint and it contains only unique values. Primary key constraint doesn’t accept null values (Read more Here)

Interview Questions Part-4 | What is the Difference between a HAVING clause and a WHERE clause in SQL Server | What is Connection Pooling and why it is used | What are the Authentication Modes in SQL Server | What is the difference between UNION and UNION ALL | What is Identity in SQL Server

What is the Difference between a HAVING clause and a WHERE clause in SQL Server? 

They specify a search condition for a group or an aggregate. But the difference is that HAVING can be used only with the SELECT statement. HAVING is typically used in a GROUP BY clause. When GROUP BY is not used, HAVING behaves like a WHERE clause. Having Clause is basically used only with the GROUP BY function in a query, whereas WHERE Clause is applied to each row before they are part of the GROUP BY function in a query

Interview Questions Part-3 | What is an Index in SQL Server | What is the Difference between Clustered and a Non-clustered Index in SQL Server | What is Collation | What are Primary Keys and Foreign Keys in SQL Server | What’s the Difference between a Primary Key and a Unique Key in SQL Server

What is an Index in SQL Server?

An index is a physical structure containing pointers to the data. Indexes are created in an existing table to locate the data more efficiently and quickly (Read more Here)

Interview Questions Part-2 | What are the Different Types of Triggers | What is a View | What is the Difference between a Function and a Stored Procedure | What are the Advantages of Using Stored Procedures in SQL Server

What are the Different Types of Triggers?

After triggers and Instead of triggers 

After triggers are the triggers which are raised before the transaction committed or postback.

Instead of triggers are used to update the database tables which are associated with view instead of updating the view directly.

Interview Questions Part-1 | What is Normalization | What is De Normalization | What is a Stored Procedure | What is a Trigger in SQL Server

What is Normalization? 

In relational database design, the process of organizing data to minimize redundancy. Normalization usually involves dividing a database into two or more tables and defining relationships between the tables. The objective is to isolate data so that additions, deletions, and modifications of a field can be made in just one table and then propagated through the rest of the database via the defined relationships.There are three main normal forms, each with increasing levels of normalization:

SQL Server Indexes Tutorial | Different Types of Indexes in SQL Server | Difference between Clustered Indexes and Non-Clustered Indexes in SQL Server

Introduction:

Here I will explain about SQL Indexes and different types of indexes and advantages of indexes in SQL Server.

Description:

An index can be created in a table to increase the performance of application and we can get the data more quickly and efficiently. Let’s see an example to illustrate this point suppose now we are reading book in that I need to check the information for dbmanagement to get this information I need to search each page of the book because I don’t know in which page that word information exists it’s time taken process. Instead of reading the each page of book to get that particular word information if I check the index of book (Glossary) it is much quicker for us to get the pages which contains the information with dbmanagement word. By using second method we can save lot of time and we can get information in efficient way.