# Data Integration

Data integration is a channel used to connect EMQX and external data systems, for example, databases like MySQL, MongoDB, message brokers like Apache Kafka and RabbitMQ, or even an HTTP server.

This chapter introduces the supported external data systems, how to set up the data bridge, how to create a rule for data forwarding, and how to test the data bridge and rules you just created.

Currently, the following are supported:

• Bridge Data into MQTT Broker
• Stream Data into Kafka
• Stream Data into Confluent
• Ingest Data into InfluxDB
• Ingest Data into InfluxDB V2
• Ingest Data into MySQL
• Ingest Data into PostgreSQL
• Ingest Data into Redis
• Ingest Data into MongoDB
• Steam Data into HStreamDB
• Ingest Data into Pulsar
• Ingest Data into RabbitMQ
• Ingest Data into RocketMQ
• Ingest Data into Lindorm
• Ingest Data into DynamoDB
• Ingest Data into TDengine
• Ingest Data into TimescaleDB
• Ingest Data into OpenTSDB
• Ingest Data into DolphinDB
• Ingest Data into ClickHouse
• Ingest Data into Cassandra
• Ingest Data into Oracle DB
• Ingest Data into Microsoft SQL Server
• Bridge Data into Multiple MQTT Brokers