Acar_Module-4 Blogging _INFMNGT LECTURE
Module 4_INFMNGT LECTURE
A. What is SQL?
SQL is a language that is used to communicate with databases. We can use it to access and manipulate databases. SQL stands for Structured Query Language, and it is the standard language for relational database management systems, according to ANSI (American National Standards Institute). SQL can be used to insert, search, update, and delete records in a database. It may perform a variety of different tasks, including database optimization and maintenance.
Here’s a list of some of the most commonly used SQL commands:
- CREATE – defines the database structure schema
- INSERT – inserts data into the row of a table
- UPDATE – updates data in a database
- DELETE – removes one or more rows from a table
- SELECT – selects the attribute based on the condition described by the WHERE clause
- DROP – removes tables and databases



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