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

# SQL Language [sql-spec]

This chapter 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