SQL is used to access, communicate, and manipulate data in a database. It’s an ANSI(American National Standards Institute) standard language, for relational databases and comes in different versions.
SQL is a domain-specific, user-friendly language, which can perform various tasks like insertion, deletion, updating, of the database. Also, a new database can be created with the help of Structured Query Language.
Why use SQL?
SQL is a widely known programming language used in various business Intelligence tools like Power BI. Data Science and Big Data tools like Impala, Spark, BigML, MatLab, SAS, and Tableau are highly dependent on SQL. These tools use different versions of SQL databases like Postgres, MySQL, Microsoft SQL Server, SQLite, and Oracle, and more.
SQL is comparatively easier to learn than other languages used by numerous companies to manage their database. Also, a good SQL course will help you learn the language from subject-matter experts and work on real-life projects with practical implementation.
Advantages of SQL
The following are some of the major advantages that SQL has over other query languages:
2. Standardized Language:
Thanks to the long establishment and documentation, SQL provides a uniform platform for all the users. The language was first standardized by ANSI(American National Standards Institute) and ISO(International Standards Organization) in 1986 and 1987.
3. Faster Query Processing:
With SQL, users can process large amounts of data and efficiently perform various data processing functions. It also reduces the time required for SQL training and allows the user to work on bigger projects and create huge datasets.
4. Multiple Data Views:
A view is an SQL statement that contains predefined SQL queries stored in the database. It can be created from one or more tables based on the queries written or the goal which that view fulfills.
5. Internet Usage:
SQL architecture can even be used on a three-tiered internet connection. The SQL architecture contains a database, application server, and a client.
6. Highly Desirable:
SQL is used to create and manage large databases which include sharing, updating, and retrieving the data from multiple tables. This is the main reason why businesses use SQL in various applications like web development, data analysis, IT support, etc.
Applications of SQL
Some of the best applications of the Structured Query Language are:
- Used to create views to structure the data in a natural and intuitive way.
- Data Administrators and Developers use SQL to write data integration scripts.
- Create multiple views in a way that the user can only see the exact information which they need and not more than that.
- SQL is used to create joins and relationships between tables that provides better information about the data stored.
SQL is one of the most widely used query languages for creating and managing databases Majority of businesses and organizations use it to efficiently manage their databases and development projects. Thus, knowledge of SQL language could be a gamechanger in a Job interview.