Description

SQL is a database computer language designed for the retrieval and management of data in a relational database. SQL stands for Structured Query Language. This tutorial will give you a quick start to SQL. It covers most of the topics required for a basic understanding of SQL and to get a feel of how it works.

Why to Learn SQL?

SQL is Structured Query Language, which is a computer language for storing, manipulating and retrieving data stored in a relational database.

SQL is the standard language for Relational Database System. All the Relational Database Management Systems (RDMS) like MySQL, MS Access, Oracle, Sybase, Informix, Postgres and SQL Server use SQL as their standard database language.

Also, they are using different dialects, such as −

  • MS SQL Server using T-SQL,
  • Oracle using PL/SQL,
  • MS Access version of SQL is called JET SQL (native format) etc.

Applications of SQL

As mentioned before, SQL is one of the most widely used query language over the databases. I'm going to list few of them here:

  • Allows users to access data in the relational database management systems.

  • Allows users to describe the data.

  • Allows users to define the data in a database and manipulate that data.

  • Allows to embed within other languages using SQL modules, libraries & pre-compilers.

  • Allows users to create and drop databases and tables.

  • Allows users to create view, stored procedure, functions in a database.

  • Allows users to set permissions on tables, procedures and views.

Audience

This SQL tutorial is prepared for beginners to help them understand the basic as well as the advanced concepts related to SQL languages. This tutorial will give you enough understanding on the various components of SQL along with suitable examples.

Prerequisites

Before you start practicing with various types of examples given in this tutorial, I am assuming that you are already aware about what a database is, especially the RDBMS and what is a computer programming language.

Course Content

SQL Tutorial
SQL Home
SQL RDBMS Concepts
SQL Databases
SQL Syntax
SQL Data Types
SQL Operators
SQL CREATE Database
SQL Drop Database
SQL Select Database
SQL CREATE Table
SQL Drop Table
SQL INSERT Query
SQL SELECT Query
SQL WHERE Clause
SQL AND & OR Clauses
SQL UPDATE Query
SQL DELETE Query
SQL LIKE Clause
SQL Top Clause
SQL Order By
SQL Group By
SQL Distinct Keyword
SQL SORTING Results
Advanced SQL
SQL Constraints
SQL Using Joins
SQL UNIONS CLAUSE
SQL NULL Values
SQL Alias Syntax
SQL Indexes
SQL Alter Command
SQL Truncate Table
SQL Using Views
SQL Having Clause
SQL Transactions
SQL Wildcards
SQL Date Functions
SQL Temporary Tables
SQL Clone Tables
SQL Sub Queries
SQL Using Sequences
SQL Handling Duplicates
SQL Injection
SQL Database Tuning
SQL Questions and Answers
SQL Quick Guide
SQL Useful Functions
SQL Useful Resources
SQL Discussion

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W3edify Infotech

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