Source: https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/
Documentation version: v5.3.2

# Data queries overview

Data query language (DQL) is used to fetch information from a database. You can use query statements to read persistent data and perform filtering, aggregating, and projecting operations without any data modification.

For more information about query statements, see the topics below.

- [MATCH statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/match/)
- [FILTER statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/filter/)
- [LET statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/let/)
- [FOR statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/for/)
- [Paging statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/order-by-page/)
- [RETURN statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/return/)
- [Primitive result statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/primitive-result/)
- CALL statement

  - [CALL named procedures](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/call/call-procedure/)
  - [CALL inline procedures](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/call/call-inline-procedure/)

- [Linear query statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/linear-query/)
- [Composite query statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/composite-query/)
- [Nearest neighbor query statement](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/nearest-neighbor/)
- Clauses

  - [USE clause](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/clauses/use-graph/)
  - [WHERE clause](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/clauses/where/)
  - [YIELD clause](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/clauses/yield/)
  - [GROUP BY clause](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/clauses/group-by/)
  - [ORDER BY clause](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/clauses/order-by/)
  - [LIMIT clause](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/clauses/limit/)
  - [OFFSET clause](https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/dql/clauses/offset/)