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Scenario 1: Allow software developers in your enterprise to use GaussDB(DWS) resources, but do not allow them to delete the resources or perform any high-risk operations.
Enabling concurrent data import can improve the importing speed of insert, upsert, update, and delete statements executed on row-store and column-store tables. off indicates that concurrent import is disabled.
Similar to column storage, an update operation performed using UPSERT on an HStore Opt table in the current version involves DELETE and INSERT.
In this case, you are advised to delete the table so that you can perform operations on tables with the same name. What should I do if I cannot log in to Data Studio because the security key is cracked?
If you delete the data file in the OBS file path, you can insert data again.
If SS tables already exist in the current database, run the DROP TABLE statement to delete these tables first.
String Expiration status of the O&M account Example Request Add an O&M user. https://cn-north-208-console.ulanqab.huawei.com/dws/rest-dms/v1.0/05f2cff45100d5112f4bc00b794ea08e/clusters/e7107fab-cac0-4261-916b-7f32b3053034/db-manager/om-user/action { "operation" : "addOmUser" } Delete
Locate the row that contains the target elastic pool and click Edit in the Operation column to delete nodes from the elastic pool (move the selected ring from the left to the right). A host ring with CN nodes cannot be scaled in.
The last change time of a table is recorded only on the CN where INSERT, UPDATE, and DELETE operations are performed. Therefore, you need to query tables that are changed within the last day (the period can be changed in the function).
CALL dynamic_proc(); -- Delete the stored procedure. DROP PROCEDURE dynamic_proc; OPEN FOR Dynamic query statements can be executed by using OPEN FOR to open dynamic cursors. For details about the syntax, see Figure 3.
Add, Delete, Modify, and Query operations on entire rows are frequently performed. Column storage Only necessary columns in a query are read. The homogeneity of data within a column facilitates efficient compression.
Frequently update and delete operations can lead to table bloating. To free up space, you can run the VACUUM or VACUUM FULL command on system catalogs.
Value range: enumerated values origin indicates that the system copies operations such as insert, delete, and update from the current session. replica indicates that the system copies operations such as insert, delete, and update from other places to the current session. local indicates
Create a replication table node group using the CREATE NODE GROUP SQL statement and delete one using DROP NODE GROUP. Before deleting a replication table node group, delete all table objects in the node group.
Each subquery can be a SELECT, VALUES, INSERT, UPDATE or DELETE statement.
After executing batch INSERT and DELETE operations, you are advised to run the ANALYZE statement on the table or the entire database to update statistics. By default, 30,000 rows of statistics are sampled.
When you cannot log in to Data Studio due to a damaged security key, perform the following steps to generate a new security key: Delete the security folder in Data Studio > UserData.
If the retention period of an incremental snapshot exceeds the maximum retention period, GaussDB(DWS) does not delete the snapshot immediately.
After the separation of duties is enabled, only the system administrator has the permission to create, modify, delete, and allocate logical clusters. Accessing a logical cluster requires permissions.
You can check it in the snapshot list and manually delete it if it is no longer necessary. During the change, the cluster is read-only, affecting intelligent O&M tasks. You are advised to start these tasks after the change or pause them before the change.
