SQL Tutorial
SQL (Structured Query Language) is used to modify and access data or information from a storage area called database. This beginner sql tutorial website teaches you the basics of SQL code and train you how to write SQL queries. I will be sharing my knowledge on SQL and help you learn SQL better. The concepts discussed in this SQL tutorial can be applied to most of database systems. The SQL syntax used to explain the tutorial concepts is similar to the one used in Oracle database.
SQL Intro: What is SQL?
What is SQL? SQL stands for “Structured Query Language” and can be pronounced as “SQL” or “sequel – (Structured English Query Language)”. Defined, SQL is a query language used for accessing and modifying information in the database.
IBM first developed SQL in 1970s. Also it is an ANSI/ISO standard. It has become a Standard Universal Language used by most of the relational database management systems (RDBMS). Some of the RDBMS systems are: Oracle, Microsoft SQL server, Sybase etc. Most of these have provided their own implementation thus enhancing it's feature and making it a powerful tool.
SQL Commands: Few SQL Coding Statements?
Few of the sql commands used in sql code programming are:SELECT Statement, UPDATE Statement, INSERT INTO Statement,DELETE Statement, WHERE Clause, ORDER BY Clause, GROUP BY Clause, Subquery Clauses, Joins, Views, GROUP Functions,Indexes etc.
My SQL DataBase
In a simple manner, SQL is a non-procedural, English-like language that processes data in groups of records rather than one record at a time. Few functions of SQL are:
- store data
- modify data
- retrieve data
- modify data
- delete data
- create tables and other database objects
- delete data
