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DELETE DELETE (short key abbreviated as DEL) is an ANSI-compliant SQL syntax operator used to delete existing records from a table. DSC supports the Teradata DELETE statement and its short key DEL.
DELETE Function Delete data from an HStore table. Precautions To delete all the data from a table, you are advised to use the TRUNCATE syntax to improve performance and reduce table bloating.
DELETE Function Delete data from an HStore table. Precautions To delete all the data from a table, you are advised to use the TRUNCATE syntax to improve performance and reduce table bloating.
< 14888; Delete the employees whose ca_address_sk is 14891, 14893, and 14895 from tpcds.customer_address_bak. 1 DELETE FROM tpcds.customer_address_bak WHERE ca_address_sk in (14891,14893,14895); Delete all data in the tpcds.customer_address_bak table. 1 DELETE FROM tpcds.customer_address_bak
< 14888; Delete the employees whose ca_address_sk is 14891, 14893, and 14895 from tpcds.customer_address_bak. 1 DELETE FROM tpcds.customer_address_bak WHERE ca_address_sk in (14891,14893,14895); Delete all data in the tpcds.customer_address_bak table. 1 DELETE FROM tpcds.customer_address_bak
WHERE ca_address_sk in (14891,14893,14895); Delete all data in customer_address_bak: 1 DELETE FROM customer_address_bak; Parent topic: DML Syntax
< 14888; Delete the employees whose ca_address_sk is 14891, 14893, and 14895 from tpcds. customer_address_bak: 1 DELETE FROM tpcds.customer_address_bak WHERE ca_address_sk in (14891,14893,14895); Delete all data in the tpcds.customer_address_bak table: 1 DELETE FROM tpcds.customer_address_bak
< 14888; Delete the employees whose ca_address_sk is 14891, 14893, and 14895 from tpcds. customer_address_bak: 1 DELETE FROM tpcds.customer_address_bak WHERE ca_address_sk in (14891,14893,14895); Delete all data in the tpcds.customer_address_bak table: 1 DELETE FROM tpcds.customer_address_bak
Delete an Index MySQL supports both DROP INDEX and ALTER TABLE DROP INDEX for deleting indexes. DSC will perform adaptation based on GaussDB features during migration.
Delete an Index MySQL supports both DROP INDEX and ALTER TABLE DROP INDEX for deleting indexes. DSC will perform adaptation based on GaussDB features during migration.
TRUNCATE, DELETE, and DROP are different in that: TRUNCATE TABLE deletes content, releases space, but does not delete definitions. DELETE TABLE deletes content, but does not delete definitions or release space. DROP TABLE deletes content and definitions, and releases space.
TRUNCATE, DELETE, and DROP are different in that: TRUNCATE TABLE deletes content, releases space, but does not delete definitions. DELETE TABLE deletes content, but does not delete definitions or release space. DROP TABLE deletes content and definitions, and releases space.
If such a session exists, find the machine that connects to the database, disconnect the connection, and delete the database. Handling Procedure Using the SQL client tool to connect to the database.
Delete redundant data and retain one of them. Method 1: Use the aggregate function min(expr). Use aggregate functions to obtain non-duplicate rows with the smallest ID through subqueries, and then use NOT IN to delete duplicate data.
TRUNCATE, DELETE, and DROP are different in that: TRUNCATE TABLE deletes content, releases space, but does not delete definitions. DELETE TABLE deletes content, but does not delete definitions or release space. DROP TABLE deletes content and definitions, and releases space.
TRUNCATE, DELETE, and DROP are different in that: TRUNCATE TABLE deletes content, releases space, but does not delete definitions. DELETE TABLE deletes content, but does not delete definitions or release space. DROP TABLE deletes content and definitions, and releases space.
TRUNCATE, DELETE, and DROP are different in that: TRUNCATE TABLE deletes content, releases space, but does not delete definitions. DELETE TABLE deletes content, but does not delete definitions or release space. DROP TABLE deletes content and definitions, and releases space.
Delete redundant data and retain one of them. Method 1: Use the aggregate function min(expr). Use aggregate functions to obtain non-duplicate rows with the smallest ID through subqueries, and then use NOT IN to delete duplicate data.
Symptom You need to check for update and delete operations on a table in either of the following scenarios: Frequent update or delete operations on a table generate a large number of disk page fragments and affect query performance.
In the Operation column of the snapshot that you want to delete, click Delete. You can delete snapshots that are manually created only. In the dialog box that is displayed, confirm the information and click Yes to delete the snapshot. Parent topic: Manual Snapshots