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Connecting Java and ClickHouse with ADBC

Instructions

Tip

If you already have a ClickHouse instance running, skip the steps to set up and clean up ClickHouse.

Prerequisites

  1. Install Maven

  2. Install dbc

Set up ClickHouse

  1. Install Docker

  2. Start a ClickHouse instance:

    docker run -d --rm --name some-clickhouse-server -p 8123:8123 -e CLICKHOUSE_USER=user -e CLICKHOUSE_PASSWORD=pass clickhouse/clickhouse-server

Connect to ClickHouse

  1. Install the ClickHouse ADBC driver:

    dbc install clickhouse
  2. Customize the main method in Example.java

    • Change the connection arguments in the params.put() calls
    • If you changed which database you're connecting to, also change the SQL SELECT statement in stmt.setSqlQuery()
  3. Run the Java program:

    mvn compile exec:exec

Clean up

Stop the Docker container running ClickHouse:

docker stop some-clickhouse-server