Renaming a column in Sql Server
We often need to change the name of a column of a table to a new name. We can do […]
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SQL Server
This category contains all SQL related articles
Group by…..Having Clause
Group By:- Group By clauses is used to groups rows based on the distinct values of the specified columns. The
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Difference Between Having and Where Clause in Sql Server
Both Having Clause and Where clause is used to filter the data coming from the Select statement, but still there
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Interview Questions, SQL Basic Concepts, SQL Server
How to find duplicate values in a table
Sometimes duplicate values in tables can create a major problem when we do not make a primary key or a
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Sql Server View
Views:- View can be described as virtual table which derived its data from one or more than one table columns.It
SQL Normalization, SQL Server
Second Normal Form (2NF)
Second Normal Form (2NF) :-A table is said to be in its Second Normal Form if it satisfied the following conditions:- 1)
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SQL Normalization, SQL Server
Third Normal Form (3NF)
Third Normal Form (3NF) :- A table is said to be in the Third Normal form (3NF) if it satisfy
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SQL Normalization, SQL Server
First Normal form (INF)
First Normal Form (INF) A table is said to be in a First Normal Form (1NF) if it satisfy the
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SQL Normalization, SQL Server
Database Normalization
Database Normalization Normalization Database Normalization can be defined as the process of organization the data to reduce the redundant table
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Indexes in Sql server
Indexes-Indexing is way to sort and search records in the table. It will improve the speed of locating and retrieval
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Difference between Clustered Index and Non clustered Index
Indexes-Indexing is way to sort and search records in the table. It will improve the speed of locating and retrieval
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Sql Joins- Inner Joins, Self Joins, Outer Joins, Cross Joins
Introduction I generally feel that people are afraid of Joins in SQL Server. But if they know what the different
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Sql Server- Difference between Stored Procedure and Function
In Sql Server, both functions and stored procedures can be defined as the logically grouping of Sql statements formed to
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Difference between Delete and Truncate Command
Although the Delete and Truncate Commands logically does the same work of deleting the rows from the table but still
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Sql Server – How to write a Stored procedure in Sql server
Stored Procedure:- Stored Procedure In Sql server can be defined as the set of logically group of sql statement which
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SQL Server, SQL Union Function
Sql Server – Union and Union All
Union and Union All, both are used to select data from one or more than one tables but still they
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SQL Basic Concepts, SQL Server
IDENTITY Property in SQL Server
IDENTITY Property Sometimes we need a column whose values can uniquely identifying the rows in the table. To achieve
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SQL Basic Concepts, SQL Server
How to make database offline or online
Database is made offline to move its physical files. There can be many ways to make a database offline. But
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SQL Basic Concepts, SQL Server
Different ways to create a table and insert data into the table
Introduction Tables can be defined as the structure which contains the data in the database. This article discuss about the
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Difference between Primary key and Unique key
Both Primary key and Unique key enforce uniqueness of the column on which they are defined but still there are
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Difference between Subquery, Nested Subquery and Correlated Subquery
Query Query can be defined as a way to inquire the data from the database. It is used to extract
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