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The following describes how to use SQL statements to create tables, insert data, query data, and delete tables. Prerequisites The HBase client has been installed. For example, the client has been installed in the /opt/client directory.
The following describes how to use SQL statements to create tables, insert data, query data, and delete tables. Prerequisites The HBase client has been installed. For example, the client has been installed in the /opt/client directory.
Basic Syntax DROP TABLE [IF EXISTS] [db_name.]table_name [FORCE]; Use Example Delete the my_table table. DROP TABLE IF EXISTS example_db.my_table; Parent topic: Typical SQL Syntax of Doris
DROP SECONDARY INDEX Function This command is used to delete the existing secondary index table in a specific table.
In the dialog box, click Yes, delete it. If a Loader job has integrated a Loader link, the link cannot be deleted. Parent topic: Using Loader
Deleting HBase Data in Batches Using BulkLoad Run the following command to delete the rows from row_start to row_stop and direct the output to /output/destdir/. hbase com.huawei.hadoop.hbase.tools.bulkload.DeleteData -Ddelete.rowkey.start="row_start" -Ddelete.rowkey.stop="
Procedure Run the following command to delete the rows from row_start to row_stop and direct the output to /output/destdir/. hbase com.huawei.hadoop.hbase.tools.bulkload.DeleteData -Ddelete.rowkey.start="row_start" -Ddelete.rowkey.stop="row_stop" -Ddelete.hfile.output
Viewing Kafka Data Production and Consumption Details Scenario On Kafka UI, you can view topic details, modify topic configurations, add topic partitions, delete topics, and view the number of data records produced in different time segments in real time.
Viewing Kafka Data Production and Consumption Details Scenario On Kafka UI, you can view topic details, modify topic configurations, add topic partitions, delete topics, and view the number of data records produced in different time segments in real time.
You can also select one or more jobs and click Delete Job in the upper right corner of the job list. In the dialog box, click Yes, delete it. If the state of a Loader job is Running, the job fails to be deleted. Parent topic: Using Loader
Delete a column: ALTER TABLE carbon DROP COLUMNS (b1); ALTER TABLE test_db.carbon DROP COLUMNS (b1); Delete multiple columns: ALTER TABLE carbon DROP COLUMNS (b1,c1); ALTER TABLE test_db.carbon DROP COLUMNS (b1,c1); System Response If you run the DESCRIBE command, the deleted columns
Delete a column: ALTER TABLE carbon DROP COLUMNS (b1); ALTER TABLE test_db.carbon DROP COLUMNS (b1); Delete multiple columns: ALTER TABLE carbon DROP COLUMNS (b1,c1); ALTER TABLE test_db.carbon DROP COLUMNS (b1,c1); System Response If you run the DESCRIBE command, the deleted columns
Run the following command to access HTTP: linux1:/opt/client # curl -i -X DELETE --negotiate -u: "http://linux1:25002/webhdfs/v1/huawei/testHdfs?
Run the following command to access HTTP: linux1:/opt/client # curl -i -X DELETE --negotiate -u: "http://linux1:25002/webhdfs/v1/huawei/testHdfs?
Specifically, REST APIs receive the GET, PUT, POST, and DELETE requests and respond to the requests with JSON data.
Run the following command to access HTTP: linux1:/opt/client # curl -i -X DELETE --negotiate -u: "http://linux1:9870/webhdfs/v1/huawei/testHdfs?
Run the following command to access HTTP: linux1:/opt/client # curl -i -X DELETE --negotiate -u: "http://linux1:9870/webhdfs/v1/huawei/testHdfs?
Configuring Flink to Read and Write Doris Data Flink Doris Connector allows you to perform operations (read, insert, modify, and delete) on data stored in Doris through Flink. Only tables of the Unique Key model can be modified or deleted.
Managing Loader Links (MRS 3.x and Later Versions) Scenario You can create, view, edit, and delete links on the Loader page. This section applies to MRS 3.x or later. Creating a Connection Log in to the service page.
Managing Loader Links Scenario You can create, view, edit, and delete links on the Loader page. Creating a Connection Log in to the service page. Log in to FusionInsight Manager (for details, see Accessing FusionInsight Manager) and choose Cluster > Services. Select Loader.
