[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-04 UTC。"],[[["\u003cp\u003eYou can modify a stream's display name and labels to update its high-level information.\u003c/p\u003e\n"],["\u003cp\u003eThe configuration details for the source database can be changed, allowing modification of the schemas and tables that Datastream either transfers or restricts from transferring to the destination.\u003c/p\u003e\n"],["\u003cp\u003eThe folder destination path, used by Datastream for data transfer, and the output format of data, can also be modified as part of the configuration of the stream destination.\u003c/p\u003e\n"],["\u003cp\u003eThe source database type of an existing stream cannot be changed, requiring the creation of a new stream if the type needs to change.\u003c/p\u003e\n"],["\u003cp\u003eAny modifications made to a running stream will automatically be updated by Datastream.\u003c/p\u003e\n"]]],[],null,["# Modify a stream\n\nYou can modify the following information about a stream:\n\n- High-level information, such as the display name and labels for the stream.\n- Configuration information for the source database and the destination, such as the tables and schemas in the source database that Datastream will either transfer to the destination or will be restricted from transferring into the destination. Datastream uses this configuration information to transfer the correct data from the source database to the destination.\n\n | **Note:** You can't change the source database type for an already created stream. To change the database type, you need to create a new stream. For more information, see [Create a stream](/datastream/docs/create-a-stream).\n\nModify high-level information\n-----------------------------\n\n1. Go to the **Streams** page in the Google Cloud Console.\n\n [Go to the Streams page](https://console.cloud.google.com/datastream/streams)\n2. Click the stream that you want to modify.\n\n3. On the **Stream details** page, click **EDIT**.\n\n4. Select **Edit stream settings** from the menu that appears.\n\n5. Modify the display name or labels for the stream.\n\n | For more information about the stream's display name or labels, see [Define settings for the stream](/datastream/docs/create-a-stream#definestreamsettings).\n\n \u003cbr /\u003e\n\n6. After making your changes, click **SAVE**.\n\nModify configuration information about the source database\n----------------------------------------------------------\n\n1. Go to the **Streams** page in the Google Cloud Console.\n\n [Go to the Streams page](https://console.cloud.google.com/datastream/streams)\n2. Click the stream that you want to modify.\n\n3. On the **Stream details** page, click **EDIT**.\n\n4. Select **Edit source configuration** from the menu that appears.\n\n5. In the **Select objects to include** section, use the **Objects to include** drop-down menu to change the tables and schemas in the source database that Datastream will transfer to the destination.\n\n6. Optionally, expand the **Select objects to exclude** node. In the **Objects to exclude** field, modify the tables and schemas in the source database that you want to restrict Datastream from transferring into the destination. If tables are added to this list, then they're no longer pulled into the destination. However, they're not removed from the destination.\n\n | For more information about the **Objects to include** menu or the **Objects to exclude** field, see [Configure information about the source database for the stream](/datastream/docs/create-a-stream#configuresourcedbinfo).\n\n \u003cbr /\u003e\n\n7. Note that for Oracle sources, you can't modify the CDC method. However, you can change the database directories details, if you selected this log file access type.\n\n8. Optionally, expand the **Choose backfill mode for historical data** node to modify whether Datastream backfills the destination with current and future data from the source, or streams only changes to this data.\n\n - Select the **Automatic** option to stream all existing data, in addition to changes to the data, from the source into the destination.\n\n If you select this option, then in the **Objects excluded from automatic backfill** field, you can modify the tables and schemas in the source database that you want to restrict Datastream from backfilling into the destination.\n - Select the **Manual** option to stream only changes to the data.\n\n | For more information about the **Choose backfill mode for historical data** node, see [Configure information about the source database for the stream](/datastream/docs/create-a-stream#configuresourcedbinfo).\n9. After making your changes, click **SAVE**.\n\nModify configuration information about the destination\n------------------------------------------------------\n\n1. Go to the **Streams** page in the Google Cloud Console.\n\n [Go to the Streams page](https://console.cloud.google.com/datastream/streams)\n2. Click the stream that you want to modify.\n\n3. On the **Stream details** page, click **EDIT**.\n\n4. Select **Edit destination configuration** from the menu that appears.\n\n5. Depending on the destination that you selected, adjust the following settings as required:\n\n **BigQuery** destinations:\n - Under **Encryption**, change the type of encryption that you want to use: Google-managed encryption key or Cloud Key Management Service key.\n - Under **Balance data staleness and BigQuery costs** , change the **Staleness limit** option.\n\n **BigLake Iceberg tables** destinations:\n - Under **Encryption**, change the type of encryption that you want to use: Google-managed encryption key or Cloud Key Management Service key.\n\n **Cloud Storage** destinations:\n - In the **Stream path prefix** field, modify the folder of the destination into which Datastream will transfer schemas, tables, and data from the source database. If you change the folder, then all new files will be written to the new folder. Also, for more information about the **Stream path prefix** field, see [Configure information about the destination for the stream](/datastream/docs/create-a-stream#configuredestinfo).\n - From the **Output format** menu:\n - Choose the format of files written to Cloud Storage. Datastream supports two output formats: Avro and JSON.\n - If you select the JSON format, then select or clear the **Include a Unified Types schema file in the file path** and **Enable gzip compression** check boxes. For more information about these check boxes, see [Configure information about the destination for the stream](/datastream/docs/create-a-stream#configuredestinfo).\n6. Click **SAVE** to apply your changes and [start your stream](/datastream/docs/run-a-stream#startastream). Any modifications that you make to streams that are running are updated by Datastream automatically.\n\nWhat's next\n-----------\n\n- To learn more about streams, see [Stream lifecycle](/datastream/docs/stream-states-and-actions).\n- To learn how to monitor a stream, see [Monitor a stream](/datastream/docs/monitor-a-stream).\n- To learn how to view information about your stream, see [View a stream](/datastream/docs/view-a-stream).\n- To learn how to recover a failed stream, see [Recover a stream](/datastream/docs/recover-a-stream).\n- To learn how to delete an existing stream, see [Delete a stream](/datastream/docs/delete-a-stream)."]]
