单选题What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archivingenabled?（）AIt fails with the ORA-665610 Invalid DDL statement on history-tracked messageBThe rows in the table are truncated without being archived.CThe rows in the table are archived, and then truncated.DThe rows in both the table and the archive are truncated.
单选题
What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archivingenabled?（）
A
It fails with the ORA-665610 Invalid DDL statement on history-tracked message
B
The rows in the table are truncated without being archived.
C
The rows in the table are archived, and then truncated.
D
The rows in both the table and the archive are truncated.
参考解析
解析：
暂无解析
相关考题：
You enabled Flashback Data Archive on the INVENTORY table.Which DDL operation is supported on the table after enabling Flashback Data Archive?() A. Drop the table.B. Partition the tableC. Truncate the table.D. Add a column to the table.E. Rename a column in the table.
Evaluate the SQL statement: TRUNCATE TABLE DEPT; Which three are true about the SQL statement? () A. It releases the storage space used by the table.B. It does not release the storage space used by the table.C. You can roll back the deletion of rows after the statement executes.D. You can NOT roll back the deletion of rows after the statement executes.E. An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.F. You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table
What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archivingenabled?() A. It fails with the ORA-665610 Invalid DDL statement on history-tracked messageB. The rows in the table are truncated without being archived.C. The rows in the table are archived, and then truncated.D. The rows in both the table and the archive are truncated.
You enabled Flashback Data Archive on the INVENTORY table.Which DDL operation is supported on the table after enabling Flashback Data Archive?（）A、Drop the table.B、Partition the tableC、Truncate the table.D、Add a column to the table.E、Rename a column in the table.
You executed the following FLASHBACK TABLE command： FLASHBACK TABLE emp TO TIMESTAMP （’11：45’，’hh12：mi’）; Which two statements are correct？（）A、The FLASHBACK TABLE statement will not be written to the alert log file.B、The changes made to the EMP table since the specified time will be undone.C、The EMP table that was dropped by mistake from the database will be restored.D、The FLASHBACK TABLE statement will be executed within a single transaction.E、The FLASHBACK TABLE statement will not maintain the existing indexes on the EMP table. F、The list of transactions that have modified the EMP table since the specified time will be displayed.
You enabled Flashback Data Archive on the INVENTORY table. Which DDL operation is supported on the table after enabling Flashback Data Archive？（） A、 Drop the table.B、 Partition the table.C、 Truncate the table.D、 Add a column to the table.E、 Rename a column in the table.
What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archivingenabled?（）A、It fails with the ORA-665610 Invalid DDL statement on history-tracked messageB、The rows in the table are truncated without being archived.C、The rows in the table are archived, and then truncated.D、The rows in both the table and the archive are truncated.
You are working in an online transaction processing (OLTP) environment. You use the FLASHBACKTABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the system change number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table is not in the correct state. Now, you need to reverse the effects of the FLASHBACK TABLE command. Which is the fastest and the most efficient option to reverse the effects of the FLASHBACK TABLE command?（）A、Restore the backup control file and open the database with RESETLOGS option.B、Perform point-in-time recovery because flashback cannot be performed again on this tableC、Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571D、Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571
Evaluate the SQL statement:TRUNCATE TABLE DEPT;Which three are true about the SQL statement? （）A、It releases the storage space used by the table.B、It does not release the storage space used by the table.C、You can roll back the deletion of rows after the statement executes.D、You can NOT roll back the deletion of rows after the statement executes.E、An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.F、You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table
You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?（）A、One of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.B、One of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.C、Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.D、None of the tables are recovered from the Recycle Bin, and the statement returns an error.
What does the TRUNCATE statement do?（）A、Removes the tableB、Removes all rows from a tableC、Shortens the table to 10 rowsD、Removes all columns from a tableE、Removes foreign keys from a table
Which three descriptions are correct about the effects of the TRUNCATE command on a table（）A、The corresponding indexes for the table are also truncated.B、Delete triggers on the table are fired during the execution of the TRUNCATE command.C、The child table is truncated when the TRUNCATE command is applied on the parent table.D、The high-water mark （HWM） is set to point to the first usable data block in the table segment.E、No undo or very little undo data is generated during the execution of the TRUNCATE command
You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table， you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that： a） No other user data in the database is affected. b） The operation takes the minimum possible time. Which option would you choose？（）A、use the ROLLBACK command with SCN 663571B、perform Flashback Transaction Query with SCN 663571C、execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571D、execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571
User A executes the following command to drop a large table in your database：SQL DROP TABLE trans； While the drop table operation is in progress， user B executes the following command on the same table：SQL DELETE FROM trans WHERE tr_type=’SL’； Which statement is true regarding the DELETE command（）A、It fails to delete the records because the records are locked in SHARE mode.B、It deletes the rows successfully because the table is locked in SHARE modeC、It fails to delete the records because the table is locked in EXCLUSIVE mode.D、It deletes the rows successfully because the table is locked in SHARE ROW EXCLUSIVE mode.
To clean up old records that are in a Flashback Data Archive and are past the retention period， what must the DBA do？（） A、 TRUNCATE the archive table.B、 DROP the Flashback Data Archive.C、 Nothing；expired rows are automatically removed.D、 Nothing；expired rows are moved to an archive table.E、 Delete entries from the archive where the metadata date retained is greater than the retention period.
单选题You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table，you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that： a） No other user data in the database is affected. b） The operation takes the minimum possible time. Which option would you choose？（）Ause the ROLLBACK command with SCN 663571Bperform Flashback Transaction Query with SCN 663571Cexecute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571Dexecute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571
多选题You executed the following FLASHBACK TABLE command： FLASHBACK TABLE emp TO TIMESTAMP （’11：45’，’hh12：mi’）； Which two statements are correct？ （）AThe FLASHBACK TABLE statement will not be written to the alert log file.BThe EMP table that was dropped by mistake from the database will be restored.CThe changes made to the EMP table since the specified time will be undone.DThe FLASHBACK TABLE statement will not maintain the existing indexes on the EMP table.EThe FLASHBACK TABLE statement will be executed within a single transaction.FThe list of transactions that have modified the EMP table since the specified time will be displayed.
单选题You discover that your Recycle Bin contains two tables with the same name， MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement： FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2； What will be the result of executing this statement？（）A One of the tables is recovered from the Recycle Bin using a First In First Out （FIFO） approach.B One of the tables is recovered from the Recycle Bin using a Last In First Out （LIFO） approach.C Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.D None of the tables are recovered from the Recycle Bin， and the statement returns an error.
单选题You are working in an online transaction processing (OLTP) environment. You use the FLASHBACKTABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the system change number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table is not in the correct state. Now, you need to reverse the effects of the FLASHBACK TABLE command. Which is the fastest and the most efficient option to reverse the effects of the FLASHBACK TABLE command?（）ARestore the backup control file and open the database with RESETLOGS option.BPerform point-in-time recovery because flashback cannot be performed again on this tableCExecute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571DExecute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571
单选题To clean up old records that are in a Flashback Data Archive and are past the retention period， what must the DBA do？（）A TRUNCATE the archive table.B DROP the Flashback Data Archive.C Nothing；expired rows are automatically removed.D Nothing；expired rows are moved to an archive table.E Delete entries from the archive where the metadata date retained is greater than the retention period.
单选题You want to create a temporary table while executing a procedure in a form. Which statement is true?（）AYou cannot create a table form within Forms. BYou must use the FORMS_DDL built-in to create the table. CYou must use the DBMS_DYNAMIC_DDL package to create the table. DYou can write the CREATE TABLE statement directly into the trigger.
单选题What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archivingenabled?（）AIt fails with the ORA-665610 Invalid DDL statement on history-tracked messageBThe rows in the table are truncated without being archived.CThe rows in the table are archived, and then truncated.DThe rows in both the table and the archive are truncated.
单选题You enabled Flashback Data Archive on the INVENTORY table. Which DDL operation is supported on the table after enabling Flashback Data Archive？（）A Drop the table.B Partition the table.C Truncate the table.D Add a column to the table.E Rename a column in the table.
单选题You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table， you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that： a） No other user data in the database is affected. b） The operation takes the minimum possible time. Which option would you choose？（）A Use ROLLBACK command with SCN 663571.B Perform Flashback Transaction Query with SCN 663571.C Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571.D Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571.
多选题Which three descriptions are correct about the effects of the TRUNCATE command on a table（）AThe corresponding indexes for the table are also truncated.BDelete triggers on the table are fired during the execution of the TRUNCATE command.CThe child table is truncated when the TRUNCATE command is applied on the parent table.DThe high-water mark （HWM） is set to point to the first usable data block in the table segment.ENo undo or very little undo data is generated during the execution of the TRUNCATE command
单选题What does the TRUNCATE statement do?（）ARemoves the tableBRemoves all rows from a tableCShortens the table to 10 rowsDRemoves all columns from a tableERemoves foreign keys from a table
单选题You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?（）AOne of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.BOne of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.CBoth the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.DNone of the tables are recovered from the Recycle Bin, and the statement returns an error.
单选题User A executes the following command to drop a large table in your database： SQL DROP TABLE trans； While the drop table operation is in progress， user B executes the following command on the same table： SQL DELETE FROM trans WHERE tr_type=’SL’； Which statement is true regarding the DELETE command（）AIt fails with a Resource Busy error.BIt deletes the rows successfully because the table is locked in SHARE mode.CIt fails to delete the records because the table is locked in EXCLUSIVE mode.DIt deletes the rows successfully because the table is locked in SHARE ROW EXCLUSIVE mode.