---
title: InfluxQL syntax
description: InfluxQL is an SQL-like query language for interacting with data in InfluxDB.
url: https://docs.influxdata.com/influxdb/v2/reference/syntax/influxql/
estimated_tokens: 225
product: InfluxDB OSS v2
version: v2
publisher: InfluxData
canonical: https://docs.influxdata.com/influxdb/v2/reference/syntax/influxql/
date: '2025-04-02T15:54:32-06:00'
lastmod: '2025-04-02T15:54:32-06:00'
---

This page documents an earlier version of InfluxDB OSS.[InfluxDB 3 Core](/influxdb3/core/) is the latest stable version.

> [!Important]
> #### API token hashing is enabled by default in InfluxDB OSS 2.9.0
>
> Stronger token security: tokens are stored as hashes on disk, so a
> copy of the database file doesn’t expose usable tokens. Existing
> tokens are hashed on first startup and the original strings can’t
> be recovered afterward — **capture any plaintext tokens you still
> need before you upgrade**.
>
> For more information, see [Token hashing](/influxdb/v2/admin/tokens/#token-hashing).

### [Influx Query Language (InfluxQL) 2.x specification](/influxdb/v2/reference/syntax/influxql/spec/)

Reference (spec) for Influx Query Language (InfluxQL) 2.x.

### [InfluxQL internals reference](/influxdb/v2/reference/syntax/influxql/internals/)

Read about the implementation of InfluxQL.