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单选题
You executed the following query： SELECT operation， undo_sql， table_name FROM flashback_transaction_query; Which statement is correct regarding the query output？（）
A
It would return information regarding only the last committed transaction.
B
It would return only the active transactions in all the undo segments in the database.
C
It would return only the committed transactions in all the undo segments in the database.
D
It would return both active and committed transactions in all the undo segments in the database.
E
It would return information regarding the transactions that began and were committed in the last 30 minutes.
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更多 “单选题You executed the following query： SELECT operation， undo_sql， table_name FROM flashback_transaction_query; Which statement is correct regarding the query output？（）A It would return information regarding only the last committed transaction.B It would return only the active transactions in all the undo segments in the database.C It would return only the committed transactions in all the undo segments in the database. D It would return both active and committed transactions in all the undo segments in the database.E It would return information regarding the transactions that began and were committed in the last 30 minutes.” 相关考题
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Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query:SQL SELECT * FROM sales;Which process would retrieve the result from the database and return it to the client program?（）A. User processB. Server processC. System Monitor (SMON)D. Process Monitor (PMON)E. Checkpoint process (CKPT)
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Which two statements are true regarding the ORDER BY clause? （）A、The sort is in ascending by order by default.B、The sort is in descending order by default.C、The ORDER BY clause must precede the WHERE clause.D、The ORDER BY clause is executed on the client side.E、The ORDER BY clause comes last in the SELECT statement.F、The ORDER BY clause is executed first in the query execution.
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Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?（）A、User processB、Server processC、System Monitor (SMON)D、Process Monitor (PMON)E、Checkpoint process (CKPT)
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You executed the following query： SELECT operation， undo_sql， table_name FROM flashback_transaction_query； Which statement is correct regarding the query output？（）A、 It would return information regarding only the last committed transaction.B、 It would return only the active transactions in all the undo segments in the database.C、 It would return only the committed transactions in all the undo segments in the database.D、 It would return both active and committed transactions in all the undo segments in the database.E、 It would return information regarding the transactions that began and were committed in the last 30 minutes.
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Which two statements are true regarding the ORDER BY clause? （）A、It is executed first in the query execution B、It must be the last clause in the SELECT statement C、It cannot be used in a SELECT statement containing a HAVING clauseD、You cannot specify a column name followed by an expression in this clause E、You can specify a combination of numeric positions and column names in this clause
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考题
You executed the following query in your database： SELECT oldest_flashback_scn， oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG； What would you determine from the output？（）A、 The time when the last flashback operation in your database was performed.B、 The time when the first flashback operation in your database was performed.C、 A list of flashback operations performed in your database using SCN and time.D、 The approximate time and the lowest system change number （SCN） to which you can flash back your database.
考题
Which statement is true regarding Flashback Version Query？ （）A、 It returns versions of rows only within a transaction.B、 It can be used in subqueries contained only in a SELECT statement.C、 It will return an error if the undo retention time is less than the lower bound time or SCN specified.D、 It retrieves all versions including the deleted as well as subsequently reinserted versions of the rows.
考题
You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）A、the time when the last flashback operation in your database was performedB、the time when the first flashback operation in your database was performedC、a list of flashback operations performed in your database using SCN and timeD、the approximate time and the lowest system change number （SCN） to which you can flash back your database
考题
单选题Which statement is true regarding Flashback Version Query？（）A
It returns versions of rows only within a transaction.B
It can be used in subqueries contained only in a SELECT statement.C
It will return an error if the undo retention time is less than the lower bound time or SCN specified.D
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考题
多选题Which two statements are true regarding the ORDER BY clause? （）AThe sort is in ascending by order by default.BThe sort is in descending order by default.CThe ORDER BY clause must precede the WHERE clause.DThe ORDER BY clause is executed on the client side.EThe ORDER BY clause comes last in the SELECT statement.FThe ORDER BY clause is executed first in the query execution.
考题
多选题Which two statements regarding the FLASHBACK_TRANSACTION_QUERY view are correct?（）AYou can find information about only active transactions from the viewBYou can find information about read only transactions from the viewCYou require the SELECT ANY TRANSACTION system privilege to access the viewDYou can find information about both active and committed transactions from the viewEYou require the SELECT ON FLASHBACK_TRANSACTION_QUERY object privilege to access the view
考题
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SyslogB
Audit logC
History logD
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考题
单选题You are creating the DEPT_SAL data block from the PAYHIST form. Users should be able to enter a valid department ID number, which will then display the employee salary information for that department. This data block could potentially retrieve a large number of records. Since users will probably only view a small number of these records, only 10 records should be fetched at one time. How would you create the data block?（）A
Select The Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually, enter the procedure name in the Query Data Source Columns property, and the procedure code in the Query Data Source Arguments property. B
Choose Tools - Data Block Wizard, select Table as the data source type, and base the block on the columns from the tables. C
Choose Tools - Data Block Wizard, select, View as the data source type, and base the block on the columns from the tables. D
Select the Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually, alter the Query Data Source Type property to 'FROM clause query', and enter the SELECT statement in the Query Data Source Name property. E
Select the Data Block node in the Object Navigator and click the Create button. Alter the Query Data Source Type, Query Data Source Name, Query Data Sources Columns, and Query Data Source Arguments properties to create a stored procedure that uses a red cursor.
考题
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The statement would not execute because table aliases are not allowed in the JOIN clause.B
The statement would not execute because the table alias prefix is not used in the USING clause.C
The statement would not execute because all the columns in the SELECT clause are not prefixed with table aliases.D
The statement would not execute because the column part of the USING clause cannot have a qualifier in the SELECT list.
考题
单选题You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）A
the time when the last flashback operation in your database was performedB
the time when the first flashback operation in your database was performedC
a list of flashback operations performed in your database using SCN and timeD
the approximate time and the lowest system change number （SCN） to which you can flash back your database
考题
单选题Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?（）A
User processB
Server processC
System Monitor (SMON)D
Process Monitor (PMON)E
Checkpoint process (CKPT)
考题
单选题A user named Arren is executing this query： select table_name，operation，undo_sql from flashback_transaction_query t， （select versions_xid as xid from employees versions between scn minvalue and maxvalue where employee_id = 123） e where t.xid = e.xid； When the query runs，he receives an ORA-01031： insufficient privileges error. Since the user owns the employees table，you know that it is not the problem. Which of the following SQL statements will correct this problem？（）A
GRANT SELECT ANY TRANSACTION TO ARRENB
GRANT SELECT ON FLASHBACK_TRANSACTION_QUERY TO ARRENC
GRANT SELECT_ANY_TRANSACTION TO ARREND
GRANT FLASHBACK TO ARRENE
GRANT SELECT ANY VIEW TO ARREN
考题
单选题You executed the following query： SELECT operation， undo_sql， table_name FROM flashback_transaction_query； Which statement is correct regarding the query output？（）A
It would return information regarding only the last committed transaction.B
It would return only the active transactions in all the undo segments in the database.C
It would return only the committed transactions in all the undo segments in the database.D
It would return both active and committed transactions in all the undo segments in the database.E
It would return information regarding the transactions that began and were committed in the last 30 minutes.
考题
单选题You executed the following query in your database： SELECT oldest_flashback_scn， oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG； What would you determine from the output？（）A
The time when the last flashback operation in your database was performed.B
The time when the first flashback operation in your database was performed.C
A list of flashback operations performed in your database using SCN and time.D
The approximate time and the lowest system change number （SCN） to which you can flash back your database.
考题
多选题Which two statements are true regarding the ORDER BY clause? （）AIt is executed first in the query executionBIt must be the last clause in the SELECT statementCIt cannot be used in a SELECT statement containing a HAVING clauseDYou cannot specify a column name followed by an expression in this clauseEYou can specify a combination of numeric positions and column names in this clause
考题
单选题Your database interface is running. A user SCOTT starts a SQL *Plus session， and issues the following query： SQL SELECT * FROM sales； Which process would retrieve the result from the database and return it to the client program？（）A
User processB
Server processC
System Monitor （SMON）D
Process Monitor （PMON）E
Checkpoint process （CKPT）
考题
单选题To make audit information more productive， the DBA executes the following command before startingan audit operation： SQL ALTER SYSTEM SET AUDIT_TRAIL=DB，EXTENDED SCOPE=SPFILE； Which statement is true regarding the audit record generated when auditing starts after restarting thedatabase（）A
It contains only the plan for the SQL statement executed by the user.B
It contains the SQL text executed by the user and the bind variables used with it.C
It contains the plan and statistics associated with the SQL statement executed by the user.D
It contains the plan for the SQL statement executed by the user and the bind variables used with it.
考题
单选题You executed the following query： SELECT operation， undo_sql， table_name FROM flashback_transaction_query； Which statement is correct regarding the query output？（）A
It would return information regarding only the last committed transaction.B
It would return only the active transactions in all the undo segments in the database.C
It would return only the committed transactions in all the undo segments in the database.D
It would return both active and committed transactions in all the undo segments in the database.E
It would return information regarding the transactions that began and were committed in the last 30 minutes.
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