SQL Database Language
SQL, or Structured Query Language, is the standard programming language used for managing and manipulating data stored in relational databases. It enables users to perform a wide range of operations, including querying for specific information, inserting, updating, and deleting records, as well as creating and modifying the database's underlying structure, such as tables and indexes. As a declarative language standardized by ANSI and ISO, SQL provides a consistent and powerful interface to interact with the vast majority of relational database management systems (RDBMS) like MySQL, PostgreSQL, and Microsoft SQL Server, making it a cornerstone skill in data management and application development.
1.1.2.
1.1.4.
1.1.6.1.
1.1.6.2.
1.1.6.3.
1.1.6.4.
1.1.6.5.
1.2.1.
1.2.2.
1.2.2.1.
1.2.2.2.
1.2.2.3.
1.2.2.4.
1.2.2.5.
1.2.2.6.
1.2.3.
1.2.4.
1.2.4.1.
1.2.4.2.
1.2.4.3.
1.2.4.4.
1.2.4.5.
1.2.4.6.
1.3.1.
1.3.1.1.
1.3.1.2.
1.3.1.3.
1.3.1.4.
1.3.2.
1.3.2.1.
1.3.2.2.
1.3.2.3.
1.3.2.4.
1.3.2.5.
1.3.3.
1.3.4.
1.4.1.
1.4.2.
1.4.3.
1.4.3.1.
1.4.3.1.1.
1.4.3.1.2.
1.4.3.1.3.
1.4.3.1.4.
1.4.3.2.
1.4.3.2.1.
1.4.3.2.2.
1.4.3.2.3.
1.4.3.2.4.
1.4.3.3.
1.4.3.4.
1.4.3.5.
1.4.3.6.
1.4.3.6.1.
1.4.3.6.2.
1.4.4.1.
1.4.4.1.1.
1.4.4.1.2.
1.4.4.2.
1.4.4.2.1.
1.4.4.2.2.
1.4.4.3.
1.4.5.
1.4.5.1.
1.4.5.2.
1.4.5.3.
1.4.5.4.
1.5.1.
1.5.2.1.
1.5.2.2.
1.5.2.3.
1.5.2.4.
1.5.4.
1.5.4.1.
1.5.4.2.
1.5.4.3.
1.5.4.4.
1.5.4.5.
1.5.4.6.
1.5.4.7.
1.6.1.
1.6.2.1.
1.6.2.2.
1.6.2.3.
1.6.2.4.
1.6.3.
1.6.4.
1.6.5.1.
1.6.5.2.
1.6.5.3.
1.6.5.4.
Go to top
Next
2. SQL Fundamentals and Syntax