Isolation levels in SQL Server
Isolation levels :- Isolation level is required to isolate a resource and protect it from other transactions. This is achieved […]
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SQL Server
This category contains all SQL related articles
Merge Command In Sql Server
Merge Command:- Merge command is a new feature introduced in the SQL Server 2008. It can perform Update, Insert and
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Adding , Deleting and Updating a Column in a table
Many times we need to alter the table definition by adding , deleting or updating a column in the table.
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Derived Table In Sql Server
Derived tables:- Derived tables are the tables which are created on the fly with the help of the Select statement. It
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Pivot and Unpivot table in SQL SERVER
Pivot Table:- Pivot tables are used to summarize and display the data, specially in case of report data by means
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SQL Server- Output clause
Output Clause:- The SQL SERVER 2005 gives us an Output Clause which gives us the information about each row affected by the
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CTE command In Sql Server
Common table expression (CTE):- Common table expression or CTE can be described as the temporary, named record set return by
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SQL Server-Table Variable
Table variable:- SQL Server provides an variable known as table variable which is used to store data in a similar way as we
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SQL Server – Local temporary table
Local temporary table:- Local temporary table is created in the tempdb and it is visible to the current user’s session
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SQL Server – Global temporary tables
Global temporary table:- Global temporary table is created in the tempdb and it is visible to all other sessions as well. Global
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SQL Basic Concepts, SQL Server
How to rename a Table in Sql Server
To rename a column in a SQL Table following command can be reused: SP_RENAME ‘old table name’, ‘New table name’
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SQL Basic Concepts, SQL Server
How to change the database collation
To change the collation of an database following commands can be used: ALTER DATABASE [database name] SET SINGLE_USER WITH ROLLBACK IMMEDIATE ALTER DATABASE [database name] COLLATE Newcollation ALTER DATABASE [database name] SET MULTI_USER For example
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SQL Server Functions- An Introduction
SQL FUNCTION: – Function in a database can be defined as the code segment consisting of a logical group of
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SQL ACID Rule, SQL Server
ACID Rules in Sql Server
ACID Rules This article will tell about the ACID Rules in SQL Server. It is a concept for evaluation of databases and their architecture.
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SQL DDL, DML, DCL, TCL, SQL Server
DML, DDL, DCL, TCL in SQL Server
Different Types of Sql Statements:- DML DML is abbreviation of Data Manipulation Language. It is used to retrieve, store,
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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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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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