Action:To alter the remote database structure, you must connect to the remote database with the appropriate privileges. ORA-02021代表DDL操作在远程数据库上不允许。 这通常发生在你试图执行一个DDL操作(如CREATE TABLE或ALTER TABLE)在远程数据库上(在另一台服务器上)而不是当前数据库时。 官方解释 这是...
点击进入 https://cwiki.apache.org/confluence/display/Hive/GettingStarted, 找到”DDL Operations”,点击进入”Hive Data Definition Language.”, 最终打开网址:https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL,
If you are performing frequent DDL operations in your database, it is not recommended to take logical backups from Aurora Reader. If transactions are running for a long time they may get killed. What is the solution? Create an external replica of the Aurora cluster using binary log-based re...
.原因：尝试在远程数据库上使用DDL操作。例如，“CREATE TABLE tablename @ remotedbname ...”。,.操...
If a table in the Oracle tenant of OceanBase Database has a primary key, all DDL operations are supported. If a table in the Oracle tenant of OceanBase Database has only a not-null unique key, a DDL operation that removes the not-null unique key is not supported. ...
I want users on database A to have select privilege on tables on remote database B. I want to add the select privilege to a role which exists on database A.
If a table in the Oracle tenant of OceanBase Database has aprimary key, all DDL operations are supported. If a table in the Oracle tenant of OceanBase Database has only anot-null unique key, a DDL operation that removes thenot-null unique keyis not supported. ...
For online DDL operations, storage is usually the bottleneck. To address this issue, CPU utilization and index building has been improved. Indexes can now be built simultaneously instead of serially. Memory management has also been tightened to respect memory configuration limits set by the user. ...
Changing the data type of a column in a view is not allowed. The following table describes more limits on performing DDL operations on a view. Schema change Affected Remarks Add an intermediate column Yes You cannot modify the definition of an intermediate view to add a column...
generally, using ddl commands to make structural changes to a database requires administrative privileges or specific permissions. this is because such operations can significantly affect the integrity and functionality of the database. how do i rename a database object with ddl? to rename a data...