Source code for tests.system.jdbc.example_jdbc_queries
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"""Example DAG demonstrating the usage of the JdbcOperator."""
from __future__ import annotations
import os
from datetime import datetime, timedelta
from airflow import DAG
from airflow.operators.empty import EmptyOperator
from airflow.providers.common.sql.operators.sql import SQLExecuteQueryOperator
[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]DAG_ID = "example_jdbc_operator"
with DAG(
dag_id=DAG_ID,
schedule="0 0 * * *",
start_date=datetime(2021, 1, 1),
dagrun_timeout=timedelta(minutes=60),
tags=["example"],
catchup=False,
) as dag:
[docs] run_this_last = EmptyOperator(task_id="run_this_last")
# [START howto_operator_jdbc_template]
delete_data = SQLExecuteQueryOperator(
task_id="delete_data",
sql="delete from my_schema.my_table where dt = {{ ds }}",
conn_id="my_jdbc_connection",
autocommit=True,
)
# [END howto_operator_jdbc_template]
# [START howto_operator_jdbc]
insert_data = SQLExecuteQueryOperator(
task_id="insert_data",
sql="insert into my_schema.my_table select dt, value from my_schema.source_data",
conn_id="my_jdbc_connection",
autocommit=True,
)
# [END howto_operator_jdbc]
delete_data >> insert_data >> run_this_last
from tests_common.test_utils.watcher import watcher
# This test needs watcher in order to properly mark success/failure
# when "tearDown" task with trigger rule is part of the DAG
list(dag.tasks) >> watcher()
from tests_common.test_utils.system_tests import get_test_run # noqa: E402
# Needed to run the example DAG with pytest (see: tests/system/README.md#run_via_pytest)
[docs]test_run = get_test_run(dag)