Introduction to SQL

SQL is a standard computer language for accessing and manipulating databases.
What is SQL?
SQL stands for Structured Query Language
SQL gives us the ability to access databases
SQL is an ANSI standard computer language
Editor Note: ANSI, the American National Organization for Standardization
What can SQL do?
SQL Executes a query against a database
SQL can retrieve data from a database
SQL can insert new records in a database
SQL can update data in a database
SQL can delete records from a database
SQL can create a new database
SQL can create a new table in a database
SQL can be found at Create Stored Procedures
in a Database SQL Can Create Views in a Database
SQL Can Set Permissions on Tables, Stored Procedures and Views
SQL is a Standard - But...
SQL is an ANSI standard computer language for accessing and manipulating database systems . SQL statements are used to retrieve and update data in the database. SQL works with database programs such as MS Access, DB2, Informix, MS SQL Server, Oracle, Sybase, and other database systems.
Unfortunately, there are many different versions of the SQL language, but in order to be compatible with the ANSI standard, they must collectively support some major keywords (such as SELECT, UPDATE, DELETE, INSERT, WHERE, etc.) in a similar fashion. .
NOTE: In addition to the SQL standard, most SQL database programs have their own proprietary extensions!
Using SQL in your website
To create a website that publishes data from a database, you need the following elements:
RDBMS database program (such as MS Access, SQL Server, MySQL)
server-side scripting language (such as PHP or ASP)
SQL
HTML / CSS
RDBMS
RDBMS Refers to a relational database management system.
RDBMS is the foundation of SQL, and also the foundation of all modern database systems, such as MS SQL Server, IBM DB2, Oracle, MySQL and Microsoft Access.
Data in an RDBMS is stored in database objects called tables.
A table is a collection of related data items, consisting of columns and rows.