---
title: InfluxDB Enterprise v1 guides
description: Step-by-step guides for using InfluxDB Enterprise.
url: https://docs.influxdata.com/enterprise_influxdb/v1/guides/
estimated_tokens: 510
product: InfluxDB Enterprise v1
version: v1
---

# InfluxDB Enterprise v1 guides

## [Authenticate requests to InfluxDB Enterprise v1](/enterprise_influxdb/v1/guides/authenticate/)

Calculate percentages using basic math operators available in InfluxQL or Flux. This guide walks through use cases and examples of calculating percentages from two values in a single query.

## [Calculate percentages in a query](/enterprise_influxdb/v1/guides/calculate_percentages/)

Calculate percentages using basic math operators available in InfluxQL or Flux. This guide walks through use-cases and examples of calculating percentages from two values in a single query.

## [Downsample and retain data](/enterprise_influxdb/v1/guides/downsample_and_retain/)

Downsample data to keep high precision while preserving storage.

## [Hardware sizing guidelines](/enterprise_influxdb/v1/guides/hardware_sizing/)

Review configuration and hardware guidelines for InfluxDB OSS (open source) and InfluxDB Enterprise v1.

## [Migrate InfluxDB OSS instances to InfluxDB Enterprise v1 clusters](/enterprise_influxdb/v1/guides/migration/)

Migrate a running instance of InfluxDB open source (OSS) to an InfluxDB Enterprise v1 cluster.

## [Query data with the InfluxDB API](/enterprise_influxdb/v1/guides/query_data/)

Query data with Flux and InfluxQL in the InfluxDB API.

## [Write data with the InfluxDB API](/enterprise_influxdb/v1/guides/write_data/)

Use the command line interface (CLI) to write data into InfluxDB with the API.