How SQL databases are implemented?

How can we implement database?

The following are steps in the implementation phase:1Install the DBMS.2Tune the setup variables according to the hardware, software and usage conditions.3Create the database and tables.4Load the data.5Set up the users and security.6Implement the backup regime.Database Design Phase 3: Implementation - MariaDB

How do SQL databases work?

It combines the columns from one or more tables in a relational database to create a set that can be saved as a table or used as it is. A JOIN is a means for combining columns from one or more tables by using values common to each.

How database is implemented internally?

Databases use a B-tree data structure to store indexes to improve the performance of the database. Data records are stored in a B+tree structure. If no indexing use, only B+tree used to store the data. A cursor is a special pointer which used to point a record( or row) which given with page id and offset.

How are relational databases implemented?

A relational database stores data in tables. Tables are organized into columns, and each column stores one type of data (integer, real number, character strings, date, "�). The data for a single "instance"� of a table is stored as a row.