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Introduction To SQL For Data Science

Database Management System

Database Management System (DBMS) is a collection of programs that enable its users to access databases, manipulate data, report, and represent data. It also helps to control access to the database.

Relational databases: This type of database defines database relationships in the form of tables. It is also called Relational DBMS, which is the most popular DBMS type in the market. Database example of the RDBMS system include MySQL, Oracle, and Microsoft SQL Server database. 

What is SQL?

SQL is the standard language for dealing with Relational Databases. SQL is

used to insert, search, update, and delete database records. Out of all the relational databases, MySQL remains the most popular database for organizations.

SQL is the Structured Query Language for RDBMS databases. When you retrieve data, you typically use SQL statements to retrieve the data. You can join tables together to select out just the right types of data from different purposes using SQL statements.

Author(s):

  • Kennedy Waweru

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