What is SQL ?
SQL, which stands for Structured Query Language, is a domain-specific
programming language used for managing and manipulating relational
databases. It provides a standardized way to interact with databases,
allowing users to create, retrieve, update, and delete data, as well as
define and manipulate the structure of the database itself. SQL is widely
used in database management systems (DBMS) and relational database
systems.

SQL

• Retrieve Data using the SQL SELECT Statement
• Learn to Restrict and Sort Data
• Usage of Single-Row Functions to Customize Output
• Invoke Conversion Functions and Conditional Expressions
• Aggregate Data Using the Group Functions
• Display Data from Multiple Tables Using Joins
• Use Sub-Queries to Solve Queries
• The SET Operators
• Data Manipulation Statements
• Use of DDL Statements to Create and Manage Tables
• Other Schema Objects
• Control User Access
• Management of Schema Objects
• Manage Objects with Data Dictionary Views
• Manipulate Large Data Sets
• Data Management in Different Time Zones
• Retrieve Data Using Sub-queries
• Regular Expression Support