Introduction to SQL: SQL is a standard language for accessing and manipulating databases.

Introduction to SQL: SQL is a standard language for accessing and manipulating databases.

What is SQL?

1. SQL stands for Structured Query Language

2. SQL lets you access and manipulate databases

3. SQL is an ANSI (American National Standards Institute) standard.

What Can SQL do?

1. SQL can execute queries against a database

2. SQL can retrieve data from a database

3. SQL can insert records into a database

4. SQL can update records in a database

5. SQL can delete records from a database

6. SQL can create new databases

7. SQL can create new tables in a database

8. SQL can create stored procedures in a database

9. SQL can create views in a database

10. SQL can set permissions on tables, procedures, and views.

SQL is a Standard - BUT...

Although SQL is an ANSI (American National Standards Institute) standard, there are many different versions of the SQL language. However, to be compliant with the ANSI standard, they all support at least the major commands (such as SELECT, UPDATE, DELETE, INSERT, WHERE) in a similar manner.

Using SQL in Your Web Site:

To build a website that shows some data from a database, you will need the following:

1. An RDBMS database program (i.e. MS Access, SQL Server, MySQL)

2. A server-side scripting language, like PHP or ASP

3. SQL

4. HTML / CSS

RDBMS: RDBMS stands for Relational Database Management System:

RDBMS is the basis for SQL, and for all modern database systems like MS SQL Server, IBM DB2, Oracle, MySQL, and Microsoft Access. The data in RDBMS is stored in database objects called tables. A table is a collection of related data entries and it consists of columns and rows. SQL is not case sensitive.