SQL
SQL stands for Structured Query Language. SQL is used to create, remove, alter the database and database objects in a database management system and to store, retrieve, update the data in a database. SQL is a standard language for creating, accessing, manipulating database management system. SQL works for all modern relational database management systems, like SQL Server, Oracle, MySQL, etc.
What Is a Database?
A database is a huge collection of data that is stored and retrieved electronically from a system. The structured data stored in the database is processed, manipulated, controlled, and updated to perform various operations. Some of the popular databases used in the industries are Oracle, MySQL, PostgreSQL, MS SQL Server, and SQLite.
Why Is SQL 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
- SQL is used to create a database, define its structure, implement it, and perform various functions on the database.
- SQL is also used for accessing, maintaining, and manipulating already created databases.
- SQL is a well built language for entering data, modifying data, and extracting data in a database.
- SQL is enormously used as a Client/Server language to connect the front-end with the back-end, thus supporting the client/server architecture.
- SQL when deployed as Data Control Language(DCL), helps protect your database from unauthorized access.
- SQL is used to access data within the relational database.
- SQL is very fast in extracting large amounts of data very efficiently.
- SQL is flexible as it works with multiple database systems from Oracle, IBM, Microsoft, etc.
- SQL helps you manage databases without knowing a lot of coding.
