SQL is a programming language specifically created for databases.

1. What is SQL
SQL is an abbreviation for structured query language, and pronounced either see-
kwell or as separate letters.
SQL is a standardized query language for requesting information from a database. The
original version called SEQUEL (structured English query language) was designed by an
IBM research center in 1974 and 1975. SQL was first introduced as a commercial
database system in 1979 by Oracle Corporation.
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2. A Brief History of SQL
1970 – Dr. Edgar F. "Ted" Codd of IBM is known as the father of relational
databases. He described a relational model for databases.
1974 – Structured Query Language appeared.
1978 – IBM worked to develop Codd's ideas and released a product named
System/R.
1986 – IBM developed the first prototype of relational database and standardized
by ANSI. The first relational database was released by Relational Software which
later came to be known as Oracle.
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3. Actions on SQL
SQL can execute queries against a database
SQL can retrieve data from a database
SQL can insert,update,delete records in a database
SQL can create new databases
SQL can create new tables in a database
SQL can create stored procedures in a database
SQL can create views in a database
SQL can set permissions on tables, procedures, and views
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4. SQL Process
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5. SQL Process
When you are executing an SQL command for any RDBMS, the system determines the
best way to carry out your request and SQL engine figures out how to interpret the task.
There are various components included in this process.
These components are –
 Query Dispatcher
 Optimization Engines
 Classic Query Engine
 SQL Query Engine, etc.
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6. Why SQL is required
SQL is required:
To create new databases, tables and views
To insert records in a database
To update records in a database
To delete records from a database
To retrieve data from a database
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7. If you want to know more about SQL language then visit
https://www.classboat.com/tech/sql-classes-pune
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