3. Select the database to delete and click Finish. Managing Templates with DBCA DBCA templates are XML files that contain information required to create a database. Templates are used in DBCA to create new databases and duplicate existing databases. The information in templates includes database ...
To avoid potential space problems during the upgrade, you can set one data file for each tablespace toAUTOEXTEND ON MAXSIZE UNLIMITEDfor the duration of the upgrade. The Pre-Upgrade Information Utility does not currently estimateUNDOtablespace utilization during the upgrade. The total amount ofUNDOta...
check that matching child rows do not exist when you try to delete a parent or modify its key value – will either operation flag a supporting “foreign key” index as used. check that the parent row exists if you try to insert a child row or update a child row to associate it with...
If the source database contains a duplicate primary key, data synchronized to the destination database will be less than that in the source database. You must check and correct the data before starting the synchronization task. The varbinary, binary, and timestamp columns in the source table ...
SQL Server Error 21642 Is Raised Regarding a Duplicate Linked Server Login When an Oracle Publisher is initially configured, a linked server entry is created for the connection between the Publisher and the Distributor. The linked server has the same name as the Oracle TNS se...
However, you can specify that a foreign key constraint causes a cascade delete, which means that deleting a referenced row in the parent table automatically deletes all rows in the child table that reference the primary key value in the deleted row in the parent table. In addition, you ...
--PURGEDDLHISTORY MINKEEPDAYS 7, MAXKEEPDAYS 10 --删除DDL历史表,最小保存7天,最大保存10天。由于此项目没有开启DDL,所以该参数被注释。 --PURGEMARKERHISTORY MINKEEPDAYS 7, MAXKEEPDAYS 10 --删除MARKER历史表,最小保存7天,最大保存10天。此项目没有使用该参数,所以该参数被注释。
So before you end the transaction, you need tofind and delete any duplicate rows. This can be useful if you have a multi-pass load where you run many insert statements. And you can only determine which rows to keep at the end.
- TEST_DATA: perform data validation check on rows at both sides. - SEQUENCE_VALUES: export DDL to set the last values of sequences Only one type of export can be perform at the same time so the TYPE directive must be unique. If you have more than one only the last found in the ...
The selected rows are not locked; other users can view the same rows during the transaction. A user can update a row if the TIMESTAMP for the row is unchanged since the time of selection. Description: DISTINCT eliminates the duplicate rows. The INSERT INTO SELECT FROM... construct ...