Consider the events_% tables in performance Schema. Which two methods will clear or reset the collected events in the tables?（）A、Using DELETE statements, for example, DELETE FROM performance_schema.events_watis_currentB、Using the statement RESET PERFORMANCE CACHEC、Using the statement FLUSH PERFORMANCE CACHED、Using TRUNCATE statements, for example, TRUNATE TABLE performance_schema.events_waits_currentE、Disabling and re-enabling all instrumentsF、Restarting Mysql

考题 Examine the data from the ORDERS and CUSTOMERS tables.Evaluate the SQL statement:What is the result when the query is executed?() 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.

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考题 Examine the statement:GRANT select, insert, updateON student_gradesTO managerWITH GRANT OPTION;Which two are true?() A. MANAGER must be a role.B. It allows the MANAGER to pass the specified privileges on to other users.C. It allows the MANAGER to create tables that refer to the STUDENT_GRADES table.D. It allows the MANAGER to apply all DML statements on the STUDENT_GRADES table.E. It allows the MANAGER the ability to select from, insert into, and update the STUDENT_GRADES table.F. It allows the MANAGER the ability to select from, delete from, and update the STUDENT_GRADES table.

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考题 Consider the events_% tables in performance Schema.Which two methods will clear or reset the collected events in the tables?() A.Using DELETE statements, for example, DELETE FROM performance_schema.events_watis_currentB.Using the statement RESET PERFORMANCE CACHEC.Using the statement FLUSH PERFORMANCE CACHED.Using TRUNCATE statements, for example, TRUNATE TABLE performance_schema.events_waits_currentE.Disabling and re-enabling all instrumentsF.Restarting Mysql

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考题 In which of the following situations should correlation names be used?() A.A table referenced in the FROM clause has no indexed column.B.The table referenced in the FROM clause has more than 200 columns.C.Two or more tables in the FROM clause have identical column names.D.The FROM clause contains two or more tables in the SELECT statement.

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考题重新设置所有BGP连接的命令是什么() A. reset bgp groupB. delete bgp groupC. reset bgp allD. delete bgp all

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考题 Which two statements are true regarding the USING clause in table joins?（）A、It can be used to join a maximum of three tables B、It can be used to restrict the number of columns used in a NATURAL join C、It can be used to access data from tables through equijoins as well as nonequijoins D、It can be used to join tables that have columns with the same name and compatible data types

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考题 In which of the following situations should correlation names be used?（）A、A table referenced in the FROM clause has no indexed column.B、The table referenced in the FROM clause has more than 200 columns.C、Two or more tables in the FROM clause have identical column names.D、The FROM clause contains two or more tables in the SELECT statement.

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考题 SQ L*Loader is a utility that can perform which two tasks？（）A、Load data from a disk， tape， or named pipes.B、Load data into an Oracle database using DML statements.C、Extract， reorganize， and insert data within an Oracle database.D、Load data from external files into tables in an Oracle database.E、Load data into an Oracle database using operating system commands.F、Load data directly from a non-Oracle database to an Oracle database.

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考题已知：DataSet data=new DataSet（）；则删除数据集data中person数据表的第5行数据的方法为（）A、 data.Tables["person "].Rows[5].Delete（）；B、 data.Tables["person "].Rows.Delete（5）；C、 data.Tables["person "].Rows[4].Delete（）；D、 data.Tables["person "].Rows[].Delete（4）；

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考题 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.

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考题 Which two operations can be performed on an external table（）A、Create a view on the table.B、Create an index on the table.C、Create a synonym on the table.D、Add a virtual column to the table.E、Update the table using the UPDATE statement.F、Delete rows in the table using the DELETE command.

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考题 Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables: EMPLOYEES EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) HIRE_DATE DATE NEW_EMPLOYEES EMPLOYEE_ID NUMBER Primary Key NAME VARCHAR2 (60) Which DELETE statement is valid?（）A、DELETE FROM employees WHERE employee_id = (SELECT employee_id FROM employees);B、DELETE * FROM employees WHERE employee_id = (SELECT employee_id FROM new_ employees);C、DELETE FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = 'carrey');D、DELETE * FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = 'carrey');

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考题 Which two statements are true regarding the USING and ON clauses in table joins?（）A、Both USING and ON clauses can be used for equijoins and nonequijoins B、Amaximum of one pair of columns can be joined between two tables using the ON clause C、The ON clause can be used to join tables on columns that have different names but compatible data types D、The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause

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考题 You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）A、The backup status will be marked expired in RMAN recovery catalog.B、The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.C、The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery cataloglD、The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.E、The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.

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考题 Which two operations can be performed on an external table（）A、Create a view on the table.B、Create an index on the table.C、Create a synonym on the table.D、Add a virtual column to the table.E、Update the table using the UPDATE statement.F、Delete rows in the table using the DELETE command

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考题 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.

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考题 You have a public computer that runs Windows XP Professional. All users log on to the computer by using the same user account. You log on to the computer by using the local administrator account and attempt to access a secure Web site. You discover that you have automatically logged on to the secure Web site by using the credential of another user. You need to connect to the secure Web site by using your own credentials. What should you do?（）A、Run ipconfig /flushdns at the command prompt. B、Reset the password for the local administrator user account. C、From the Internet Options in Internet Explorer, clear the AutoComplete history.D、From the Internet Options in Internet Explorer, delete the Temporary Internet Files.

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考题 You design a Business Intelligence （BI） solution by using SQL Server 2008. You plan to create a SQL Server 2008 Reporting Services （SSRS） solution. Developers generate random reports against a data source that contains 200 tables. Power users generate random reports against four of the 200 tables. You need to design a strategy for the SSRS solution to meet the following requirements： ·Uses minimum amount of development effort. ·Provides two sets of tables in SSRS to the developers group and the power users group. Which strategy should you use？（）A、 Create two Report Builder models.Include the four frequently used tables in the first model and all the tables in the second model.B、 Create a Report Builder model by using all the tables.Create a perspective within the model to use only the four frequently used tables.C、 Create a Report Builder model by using all the tables. Create two folders.Place the four frequently used tables in the first folder and the remaining tables in the second folder.D、 Create two Data Source Views.Include all the tables in one Data Source View and the four frequently used tables in the other Data Source View.Create two Report Builder models so that each model uses one of the Data Source Views.

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考题多选题Which two statements are true regarding the USING clause in table joins?（）AIt can be used to join a maximum of three tablesBIt can be used to restrict the number of columns used in a NATURAL joinCIt can be used to access data from tables through equijoins as well as nonequijoinsDIt can be used to join tables that have columns with the same name and compatible data types

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考题多选题Consider the events_% tables in performance Schema. Which two methods will clear or reset the collected events in the tables?（）AUsing DELETE statements, for example, DELETE FROM performance_schema.events_watis_currentBUsing the statement RESET PERFORMANCE CACHECUsing the statement FLUSH PERFORMANCE CACHEDUsing TRUNCATE statements, for example, TRUNATE TABLE performance_schema.events_waits_currentEDisabling and re-enabling all instrumentsFRestarting Mysql

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考题单选题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.

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考题单选题已知：DataSet data=new DataSet（）；则删除数据集data中person数据表的第5行数据的方法为（）A data.Tables[person ].Rows[5].Delete（）；B data.Tables[person ].Rows.Delete（5）；C data.Tables[person ].Rows[4].Delete（）；D data.Tables[person ].Rows[].Delete（4）；

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考题多选题Which two statements are true regarding the USING and ON clauses in table joins?（）ABoth USING and ON clauses can be used for equijoins and nonequijoinsBAmaximum of one pair of columns can be joined between two tables using the ON clauseCThe ON clause can be used to join tables on columns that have different names but compatible data typesDThe WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause

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考题多选题Consider the events_% tables in performance Schema. Which two methods will clear or reset the collected events in the tables?（）AUsing DELETE statements, for example, DELETE FROM performance_schema.events_watis_currentBUsing the statement RESET PERFORMANCE CACHECUsing the statement FLUSH PERFORMANCE CACHEDUsing TRUNCATE statements, for example, TRUNATE TABLE performance_schema.events_waits_currentEDisabling and re-enabling all instrumentsFRestarting Mysql

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考题多选题Which two operations can be performed on an external table（）ACreate a view on the table.BCreate an index on the table.CCreate a synonym on the table.DAdd a virtual column to the table.EUpdate the table using the UPDATE statement.FDelete rows in the table using the DELETE command.

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考题多选题Which two operations can be performed on an external table（）ACreate a view on the table.BCreate an index on the table.CCreate a synonym on the table.DAdd a virtual column to the table.EUpdate the table using the UPDATE statement.FDelete rows in the table using the DELETE command

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考题多选题Examine the statement: GRANT select, insert, update ON student_grades TO manager WITH GRANT OPTION; Which two are true?（）AMANAGER must be a role.BIt allows the MANAGER to pass the specified privileges on to other users.CIt allows the MANAGER to create tables that refer to the STUDENT_GRADES table.DIt allows the MANAGER to apply all DML statements on the STUDENT_GRADES table.EIt allows the MANAGER the ability to select from, insert into, and update the STUDENT_GRADES table.FIt allows the MANAGER the ability to select from, delete from, and update the STUDENT_GRADES table.

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