---
mapped_pages:
  - https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-spec.html
---

# SQL language [sql-spec]

This section describes the SQL syntax and semantics supported namely:

[Lexical structure](/reference/query-languages/sql/sql-lexical-structure.md)
:   Lexical structure

[SQL commands](/reference/query-languages/sql/sql-commands.md)
:   Commands

[Data types](/reference/query-languages/sql/sql-data-types.md)
:   Data types

[Index patterns](/reference/query-languages/sql/sql-index-patterns.md)
:   Index patterns