SQL
Structured Query Language—the standard programming language for managing and querying relational databases.
In Depth
SQL (Structured Query Language) is the standard language for interacting with relational database management systems (RDBMS). It encompasses several sub-languages: DDL (Data Definition Language) for creating and modifying structures, DML (Data Manipulation Language) for querying and modifying data, DCL (Data Control Language) for permissions, and TCL (Transaction Control Language) for transaction management. SQL supports complex operations including joins across multiple tables, aggregations, subqueries, window functions, common table expressions (CTEs), and set operations. While the SQL standard (ISO/IEC 9075) defines core syntax, each database vendor adds proprietary extensions.
How AI for Database Helps
AI for Database generates SQL for you. Just ask a question and get the result—or view the generated SQL to learn and verify.
Related Terms
Relational Database
A database that organizes data into structured tables with rows and columns, linked by defined relationships.
Query Optimization
The process of improving a SQL query's execution speed and resource usage without changing the results.
Text-to-SQL
The process of converting natural language questions into structured SQL queries that can be executed against a database.
Join
A SQL operation that combines rows from two or more tables based on a related column between them.
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