Source code for airflow.providers.jdbc.example_dags.example_jdbc_queries

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"""Example DAG demonstrating the usage of the JdbcOperator."""

from datetime import datetime, timedelta

from airflow import DAG

try:
    from airflow.operators.empty import EmptyOperator
except ModuleNotFoundError:
    from airflow.operators.dummy import DummyOperator as EmptyOperator  # type: ignore
from airflow.providers.jdbc.operators.jdbc import JdbcOperator

with DAG(
    dag_id='example_jdbc_operator',
    schedule_interval='0 0 * * *',
    start_date=datetime(2021, 1, 1),
    dagrun_timeout=timedelta(minutes=60),
    tags=['example'],
    catchup=False,
) as dag:

    run_this_last = EmptyOperator(task_id='run_this_last')

    # [START howto_operator_jdbc_template]
    delete_data = JdbcOperator(
        task_id='delete_data',
        sql='delete from my_schema.my_table where dt = {{ ds }}',
        jdbc_conn_id='my_jdbc_connection',
        autocommit=True,
    )
    # [END howto_operator_jdbc_template]

    # [START howto_operator_jdbc]
    insert_data = JdbcOperator(
        task_id='insert_data',
        sql='insert into my_schema.my_table select dt, value from my_schema.source_data',
        jdbc_conn_id='my_jdbc_connection',
        autocommit=True,
    )
    # [END howto_operator_jdbc]

    delete_data >> insert_data >> run_this_last