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【单项选择题】

Examine the data from the ORDERS and CUSTOMERS tables.<br /> <img src="https://img.ppkao.com/2018-08/yiyu/2018080116524869710.jpg" /><br /> Evaluate the SQL statement:<br /> <img src="https://img.ppkao.com/2018-08/yiyu/2018080116530017293.jpg" /><br /> What is the result when the query is executed?()<p> Examine the data from the ORDERS and CUSTOMERS tables.<br /> <img src="https://img.ppkao.com/2018-08/yiyu/2018080116524869710.jpg" /><br /> Evaluate the SQL statement:<br /> <img src="https://img.ppkao.com/2018-08/yiyu/2018080116530017293.jpg" /><br /> What is the result when the query is executed?()</p>

A、A.
B.
C.
D. The query fails because the subquery returns more than one row.
E. The query fails because the outer query and the inner query are using different tables.

更多“Examine the data from the ORDERS and CUSTOMERS tables.<br /> <img src="https://img.ppkao.com/2018-08/yiyu/2018080116524869710.jpg" /><br /> Evaluate the SQL statement:<br /> <img src="https://img.ppkao.com/2018-08/yiyu/2018080116530017293.jpg" /><br /> What is the result when the query is executed?()<p> Examine the data from the ORDERS and CUSTOMERS tables.<br /> <img src="https://img.ppkao.com/2018-08/yiyu/2018080116524869710.jpg" /><br /> Evaluate the SQL statement:<br /> <img src="https://img.ppkao.com/2018-08/yiyu/2018080116530017293.jpg" /><br /> What is the result when the query is executed?()</p>”相关的问题
第1题

A、1 - Oracle Loader, 2 - Oracle Data Pump, 3 - Direct Path API  B、1 - Oracle Data Pump, 2 - Direct Path API, 3 - Oracle Loader  C、1 - Direct Path API, 2 - Oracle Loader, 3 - Oracle Data Pump  D、1 - Oracle Loader, 2 - Direct Path API, 3 - Oracle Data Pump  

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第2题

A、The data file is checked for physical corruption and backed up if found clean.  B、The backup of data file 5 is performed and the interactive messages during the backup are suppressed.  C、The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.  D、The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed  

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第3题

A、Data files that belong to only the root container  B、Data files that belong to the root container and all the pluggable databases (PDBs)  C、Data files that belong to only the root container and PDB$SEED  D、Data files that belong to the root container and all the PDBs excluding PDB$SEED  

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第4题

A、The data file is checked for physical corruption and backed up if found clean.  B、The backup of data file 5 is performed and the interactive messages during the backup are suppressed.  C、The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.  D、The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed  

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第7题

A、Because the progress is reported for each data file  B、Because the progress is reported for each backup set  C、Because other RMAN sessions have issued the same BACKUP command  D、Because new data files have been added to the database while the RMAN backup is in progress  

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第8题

A、It contains data till the last backup  B、It contains all data from target database until the current time  C、It contains all data from only the committed transactions in the target database  D、It contains all data except that which is used by the transactions in the current online redo file of target database  

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