SQL server is a popular relational database management system that was started by the Microsoft. One popular extension for SQL is T-SQL (Transact-SQL) that is closely related to the SQL language and it adds a plenty of programming constructs too that are native to the SQL. In this tutorial, we will discuss the SQL server basics in details and a set of basic SQL commands that are frequently used by developers.
In our later blogs, you can read the advanced topics too. As of now, we are restricted to the basic concepts only. Once you will go through the tutorial, you should be on your way to becoming a proficient SQL server developer even if you don’t have any experience. Here is quick list of topics to be covered in the blog:
Let us dive deep and discuss the each of the topics one by one thoroughly --
SQL means Structured Query Language and this is a Microsoft product used to store or manages information within a database. In technical terms, SQL is a RDBMS “relational database management system” whose theory revolves around two terms – Relational Data base and the Management System. With the help of SQL server, you can always store, access, or retrieve data at one place only. The SQL journey was started in the 1989 by Sybase and later it was sold to the Microsoft. This was competitor product of Oracle and Microsoft has launched more than 14 versions till now. To understand the SQL Server in a better way, let us first discuss the analogy - Relational Data base and the Management System one by one.
Relational Database - This is a collective set of data organized in the form of tables, rows or columns etc. With the help of relational databases, this is easy establishing a meaningful relation between multiple database tables. Data can always be shared or retrieved more logically and it simplifies the database interaction too. The possible number of relations exists within a database table include –
Management System - The other popular term in SQL Server is Management System that is more than an application to store data. There are a set of tools also available to structure, manage, or manipulate data more logically. Additionally, you can avail report writing tools, data management apps, analysis tools, or management interfaces to make things little easier and faster.
Let us discuss a few uses and features of SQL server going ahead the discussion –
Best practices for stored procedures in SQL Server
In SQL Server, there are basically four type’s checkpoints. These are Automatic, Indirect, Manual, or Internal etc.
There are a plenty of applications of Microsoft SQL server in the business world. One of the popular applications is storing and managing data effectively. However, any business that holds most sensitive data or confidential information, they always demand for more secured network system. With SQL server, this is possible to execute the large number of files together with ease. Also, it has a reliable backup system and security mechanism too. In brief, SQL server is a revolutionary idea how businesses can handle their data. However, there is need for a certified expert who can manage database apps more efficiently around the clock. Here, are a few reasons how certified SQL Server Developers bring more value to your Company.
In SQL server, a number of operations like create, drop, delete, update, insert, truncate are performed on the database. For this purpose, we have to follow a certain syntax to complete each of the operations. Here, is a complete list of basic SQL statements with quick description that you should know when starting with Microsoft SQL Server Training.
|Basic SQL Statements||Description and Syntax|
|Create Database||As the name suggests, this command is used to create a database in the SQL. The syntax is given as below – CREATE DATABASE databasename|
|Drop Database||This command is used to drop or delete a database in the SQL. The syntax is given as below – DROP DATABASE dbname|
|Alter Database||This command is used to modify or edit an existing database in the SQL. The syntax is given as below – ALTER DATABASE olddbName MODIFY NAME = newdbName|
As the name suggests, this command is used to create a new table in the SQL Server. The syntax is given as below –
CREATE TABLE tablename
|Delete Table||This command is used to delete records in a database. The syntax is given as below – DELETE FROM tablename Or DELETE FROM tablename WHERE columnname = somevalue|
|Drop Table||This command is used to drop a complete table in the SQL. The syntax is given as below – DROP TABLE tablename|
|Alter Table||This command is used to modify or edit an existing table in the SQL. The syntax is given as below – ALTER TABLE tablename ADD Columnname datatype Or ALTER TABLE tablename DROP COLUMN columnname datatype OR ALTER TABLE tablename ALTER COLUMN columnname datatype|
|Create Index||The command is used to create index for the table. The syntax is given as below – CREATE INDEX indexname ON tablename(columname)|
|Drop Index||The command is used to drop an existing index for the table. The syntax is given as below – DROP INDEX tablename.columnname|
|INSERT INTO||The command is used to Insert Data into the table. The syntax is given as below – INSERT INTO tablename(column1, column2, column3,…….,columnN) VALUES (value1, value2, value3,……,valueN )|
|SELECT||The command is used to Get Data from the table. The syntax is given as below – SELECT column1,column2, column3, ……, columenN FROM tablename Or SELECT *FROM tablename|
|UPDATE||The command is used to Update Records from the table. The syntax is given as below – UPDATE tablename SET columnname1=value1, columnname2=value2|
|Create Procedure||To add a new procedure in the SQL database, Create Procedure command is used. The syntax is given as below – CREATE PROCEDURE procedureename @parameter datatype AS BEGIN Select *from tablename where [email protected] END|
|Drop Procedure||To drop an existing procedure in the SQL database, Drop Procedure command is used. The syntax is given as below – DROP PROCEDURE procedurename|
To modify a procedure in the SQL database, Create Procedure command is used. The syntax is given as below –
ALTER PROCEDURE procedurename
With this discussion, you must have a complete idea of What is Microsoft SQL server, its uses, and the basic SQL command. Now you are on the way to become a successful SQL Developers. To gain more knowledge on the platform, you should join the SQL Server Certification program at JanBask Training right away and future-proof your career by acquiring the right skills and knowledge with us.
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