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70 lines
2.2 KiB
70 lines
2.2 KiB
# |
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# Licensed to the Apache Software Foundation (ASF) under one |
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# or more contributor license agreements. See the NOTICE file |
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# distributed with this work for additional information |
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# regarding copyright ownership. The ASF licenses this file |
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# to you under the Apache License, Version 2.0 (the |
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# "License"); you may not use this file except in compliance |
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# with the License. You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, |
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# software distributed under the License is distributed on an |
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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# KIND, either express or implied. See the License for the |
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# specific language governing permissions and limitations |
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# under the License. |
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""" |
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This is an example DAG for the use of the SqliteOperator. |
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In this example, we create two tasks that execute in sequence. |
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The first task calls an sql command, defined in the SQLite operator, |
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which when triggered, is performed on the connected sqlite database. |
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The second task is similar but instead calls the SQL command from an external file. |
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""" |
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from airflow import DAG |
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from airflow.providers.sqlite.operators.sqlite import SqliteOperator |
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from airflow.utils.dates import days_ago |
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default_args = {"owner": "airflow"} |
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dag = DAG( |
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dag_id="example_sqlite", |
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default_args=default_args, |
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schedule_interval="@daily", |
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start_date=days_ago(2), |
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tags=["example"], |
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) |
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# [START howto_operator_sqlite] |
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# Example of creating a task that calls a common CREATE TABLE sql command. |
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create_table_sqlite_task = SqliteOperator( |
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task_id="create_table_sqlite", |
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sqlite_conn_id="sqlite_conn_id", |
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sql=r""" |
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CREATE TABLE table_name ( |
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column_1 string, |
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column_2 string, |
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column_3 string |
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); |
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""", |
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dag=dag, |
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) |
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# [END howto_operator_sqlite] |
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# [START howto_operator_sqlite_external_file] |
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# Example of creating a task that calls an sql command from an external file. |
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external_create_table_sqlite_task = SqliteOperator( |
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task_id="create_table_sqlite_external_file", |
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sqlite_conn_id="sqlite_conn_id", |
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sql="/scripts/create_table.sql", |
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dag=dag, |
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) |
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# [END howto_operator_sqlite_external_file] |
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create_table_sqlite_task >> external_create_table_sqlite_task
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