SQL Syncler-Glossar

SQL stands for Structured Query Language and is a standardized programming language used to manage and manipulate data in relational database systems. SQL is an essential tool for database administrators, developers and analysts to create, read, update and delete data.

The main functions of SQL can be divided into the following categories:

1. data query language (DQL): allows data to be queried from the database.
2. data definition language (DDL): Used to define and manage the database structure.
3. data manipulation language (DML): Used to manipulate data in the database.
4. data control language (DCL): Used to control access to data in the database.

SQL is a powerful and flexible tool that is widely used in most relational database systems such as MySQL, PostgreSQL, Microsoft SQL Server and MariaDB. It enables efficient and structured work with large amounts of data and is a cornerstone of modern data processing.