category
home / developersection / category
‘Select’ Command in SQL
SQL SELECT command is widely used in SQL database server. It is very important command through which we have to perform many task in SQL server database. Select command is used for select data from database table and result is stored in result table,
‘SELECT’ command with Aggregate Function
SQL provides some aggregate function which is used in database. It is predefined which available by SQL server. SQL aggregate functions return a single value, calculated from values in a column.
‘SELECT’ command with SQL operator
There is lots of operator available in SQL server database such as assignment operator, bitwise operator, logical operator, comparison operator etc. Here we will discuss some important operator which is used widely in SQL server database.
JOINS in SQL Server
By using joins, you can retrieve data from two or more tables based on logical relationships between the tables. Joins indicate how Microsoft SQL Server should use data from one table to select the rows in another table.
Index in SQL Server
Index:Index is most important concept of SQL Server database to increase performance of retrieving data from database. Indexes speed up the querying p
Function in SQL
Function:Functions are compact pieces of Transact SQL code, which can accept parameters, and return either a value, or a table. They are saved as indi
CREATE Command in SQL Server
CREATE command is used to create database structure. It is play an important role in SQL database server. Create command is used to create many database structures such as: Table, View, Stored procedure, function etc.
SQL Wildcards
SQL wildcards are used for searching one or more characters from table in a database. The SQL wildcards substitute one or more character, whenever there is a search for data in a table of the database.
Basic SQL Query
There are lots of SQL commands which are used in database. Here we will try to explore all the SQL commands with help of SQL Query.Data Definition La
What is Normalization?
Normalization is the process of efficiently organizing data in a database. There are two goals of the normalization process: eliminating redundant data and ensuring data dependencies make sense. Both of these are worthy goals as they reduce the amoun
Constraint in SQL Server
What is Constraint?The concept of a constraint is to enforce a rule in the database. Together, the constraints in a database maintain the integrity of
Working with Views in Database
Whenever you want to provide different types of restriction to different user such as different-2 users can see different records in same table then we can use the concept of views. Views can help in simplifying query execution when the query involve