---
title: Running Queries
pubDate: 2026-08-17T09:53:44.266Z
antora:
  editUrl: https://github.com/couchbaselabs/docs-devex/edit/release/7.2/modules/n1ql/pages/n1ql-intro/index.adoc
  xref: xref:7.2@server:n1ql:n1ql-intro/index.adoc[]
---

[Consult the llms.txt file for a full list of contents](/llms.txt)
[View original HTML](/server/7.2/n1ql/n1ql-intro/index.html)

# Running Queries

## Queries and Results

An overview of common concepts that you will need to understand in order to use the Query service.

* [SQL++ Queries and Results](queriesandresults.md)

## Getting System Information

SQL++ has a system catalog that stores metadata about a database. The system catalog is a namespace called system.

* [Getting System Information](sysinfo.md)

## SQL++ Error Codes

All of the SQL++ error codes, their error messages, and some tips to resolve them.

* [SQL++ Error Codes](../n1ql-language-reference/n1ql-error-codes.md)

## Related Links

The Query services provides the following tools for running queries:

* [cbq: The Command Line Shell for SQL++](../../tools/cbq-shell.md)
* [Query Workbench](../../tools/query-workbench.md)