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【单选题】

The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema.<br /> What happens when you execute this query?()<br /> <img src="https://nimg.ppkao.com/2018-08/yiyu/2018080114564230391.jpg?sign=b976d60998625dd2ebf35358d5449c1f&t=62d1fbaa" />

A、You obtain the results retrieved from the public synonym HR created by the database administrator.

B、You obtain the results retrieved from the HR table that belongs to your schema.

C、You get an error message because you cannot retrieve from a table that has the same name as a public synonym.

D、You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.

E、You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.

更多“ The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema.<br /> What happens when you execute this query?()<br /> <img src="https://nimg.ppkao.com/2018-08/yiyu/2018080114564230391.jpg?sign=b976d60998625dd2ebf35358d5449c1f&t=62d1fbaa" />”相关的问题
第1题

A、It creates database files for the duplicate database under the Oracle base with a different directory for the duplicate database.  B、It overwrites data files of the target database because a different location for data files is not mentioned for the duplicate database.  C、It creates database files for the duplicate database under the same Oracle home as that of the target database with the same directory structure.  D、It creates database files for the duplicate database under the same Oracle home as that of the target but with a different directory for the duplicate database.  

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第2题

A、The data files of the read-only tablespaces in the target database are not duplicated  B、The read-only tablespaces in the target database are still defined in new the database  C、The read-only tablespaces in the target database are changed to online after duplication  D、The data files of the read-only tablespaces in the target database get duplicated  E、The read-only tablespaces in the target database are not defined in the new database  

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第3题

A、The source database backup must be copied over the net for test database.  B、The source database must be run in ARCHIVELOG mode if the database is open.  C、The source database must be shut down cleanly if the database is in mounted state.  D、A net service name should be set up and a listener configured with the target as well as the source database.  

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第5题

A、The data files of the read-only tablespaces in the target database are not duplicated  B、The read-only tablespaces in the target database are still defined in new the database  C、The read-only tablespaces in the target database are changed to online after duplication  D、The data files of the read-only tablespaces in the target database get duplicated  E、The read-only tablespaces in the target database are not defined in the new database  

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第6题

A、Mount the database  B、Open the database in NORMAL mode  C、Open the database in RESTRICTED mode  D、Open the database with the RESETLOGS option  

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第7题

A、Mount the database  B、Open the database in NORMAL mode  C、Open the database in RESTRICTED mode  D、Open the database with the RESETLOGS option  

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第8题

A、The database must have multiplexed redo log files  B、The database must be in the MOUNT state to execute the command  C、The database must be in the NOMOUNT state to execute the command  D、The database must be opened in RESTRICTED mode before this operation  E、The database must be opened with the RESETLOGS option after the flashback operation  

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第9题

A、The import operation must be performed by a user on the target database with the DATAPUMP_IMP_FULL_DATABASE role, and the database link must connect to a user on the source database with the DATAPUMP_EXD_FULL_DATABASE role.  B、All the user-defined tablespaces must be in read-only mode on the source database.  C、The export dump file must be created before starting the import on the target database.  D、The source and target database must be running on the same platform with the same endianness.  E、The path of data files on the target database must be the same as that on the source database.  F、The impdp operation must be performed by the same user that performed the expdp operation.  

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第10题

A、The database must be in ARCHIVELOG mode  B、The database must be in MOUNT EXCLUSIVE mode  C、The database must be opened in RESTRICTED mode  D、The database instance must be started in the NOMOUNT state  E、The database instance must have the keep buffer pool defined  

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