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Codebase for the blog post #HOWTO: Writing PostgreSQL functions with Java using PL/Java

Steps to run this project:

  1. Clone this Git repository
  2. Navigate to the folder running-java-within-postgres
  3. Start your docker daemon
  4. Build the sample docker image with docker build -t pljava . (HINT: This may take some minutes)
  5. Start a docker container with docker run -p 5432:5432 -e POSTGRES_PASSWORD=postgres pljava
  6. Wait until the database is ready to accept connections
  7. Connect to the local database via PgAdmin or psql CLI tool with user postgres and password postgres
psql -U postgres
  1. Execute the functions within the postgres database and public schema:
SELECT greet('Your Name');

SELECT split_string_by_delimiter('hello - world - split - me', '-');
SELECT split_string_by_delimiter('hello < world < split < me', null);

SELECT get_oldest_person();

PLEASE NOTE: This is just a quick example to show you what's possible with PL/Java. For use in production make sure you read the documentation for potential security adjustments.

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