dbal_service_multiple_connections.yml

doctrine:
    dbal:
        default_connection: mysql
        connections:
            mysql:
                dbname: mysql_db
                user: mysql_user
                password: mysql_s3cr3t
                unix_socket: /path/to/mysqld.sock
            sqlite:
                driver: pdo_sqlite
                dbname: sqlite_db
                user: sqlite_user
                password: sqlite_s3cr3t
                path: /tmp/db.sqlite
                memory: true
            oci:
                driver: oci8
                dbname: oracle_db
                user: oracle_user
                password: oracle_s3cr3t
                servicename: oracle_service
                service: true
                pooled: true
                charset: utf8
            ibmdb2:
                driver: ibm_db2
                dbname: ibmdb2_db
                user: ibmdb2_user
                password: ibmdb2_s3cr3t
                protocol: TCPIP
            pgsql:
                driver: pdo_pgsql
                dbname: pgsql_db
                user: pgsql_user
                password: pgsql_s3cr3t
                sslmode: require
                sslrootcert: postgresql-ca.pem
                charset: utf8
            sqlanywhere:
                driver: sqlanywhere
                host: localhost
                port: 2683
                server: sqlanywhere_server
                dbname: sqlanywhere_db
                user: sqlanywhere_user
                password: sqlanywhere_s3cr3t
                persistent: true
                charset: utf8