Which three are true regarding the use of outer joins? （）A、You cannot use IN operator in a condition that involves an outerjoin.B、You use (+) on both sides of the WHERE condition to perform an outerjoin.C、You use (*) on both sides of the WHERE condition to perform an outerjoin.D、You use an outerjoin to see only the rows that do not meet the join condition.E、In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin.F、You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
Which three are true regarding the use of outer joins? （）
- A、You cannot use IN operator in a condition that involves an outerjoin.
- B、You use (+) on both sides of the WHERE condition to perform an outerjoin.
- C、You use (*) on both sides of the WHERE condition to perform an outerjoin.
- D、You use an outerjoin to see only the rows that do not meet the join condition.
- E、In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin.
- F、You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
相关考题：
If you don’t know exactly where to find the information, you may use one of the many search engines on the Web. () 此题为判断题(对，错)。
Which three are true regarding the use of outer joins? () A. You cannot use IN operator in a condition that involves an outerjoin.B. You use (+) on both sides of the WHERE condition to perform an outerjoin.C. You use (*) on both sides of the WHERE condition to perform an outerjoin.D. You use an outerjoin to see only the rows that do not meet the join condition.E. In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin.F. You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
The EMP table contains these columns:You need to display the employees who have not been assigned to any department.You write the SELECT statement:What is true about this SQL statement?() A. The SQL statement displays the desired results.B. The column in the WHERE clause should be changed to display the desired results.C. The operator in the WHERE clause should be changed to display the desired results.D. The WHERE clause should be changed to use an outer join to display the desired results.
In which three cases would you use the USING clause?() A.You want to create a nonequijoin.B.The tables to be joined have multiple NULL columns.C.The tables to be joined have columns of the same name and different data types.D.The tables to be joined have columns with the same name and compatible data types.E.You want to use a NATURAL join, but you want to restrict the number of columns in the join condition.
You are planning to anchor in an area where several anchors have been lost due to fouling．As a precaution，you should ______．A.anchor using both anchorsB.anchor with scope of 8 or more to 1C.use a stern anchorD.fit a crown strap and work wire to the anchor
Write a letter of about 100 words to the president of your university,suggesting how to improve students’physical condition.You should include the details you think necessary.You should write neatly on the ANSWER SHEET.Do not sign your own name at the end of the letter.Use“Li Ming”instead.
--Which of those electronic dictionaries do you like most? -- __________. They are both expensive and of little use.A.NoneB.NeitherC.AllD.Both
Which statement is true about Kompella-based and Martina-based VPNs？（）A、Both use LDPB、Both use BGPC、Both require additional hardware.D、Both use a two-label stack for forwarding.
Regarding zone types， which statement is true？（）A、You cannot assign an interface to a functional zone.B、You can specifiy a functional zone in a security policy.C、Security zones must have a scheduler applied.D、You can use a security zone for traffic destined for the device itself.
Which three are true regarding the use of outer joins?（）A、You cannot use IN operator in a condition that involves an outerjoin.B、You use (+) on both sides of the WHERE condition to perform an outerjoin.C、You use (*) on both sides of the WHERE condition to perform an outerjoin.D、You use an outerjoin to see only the rows that do not meet the join condition.E、In the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin.F、You cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
Which two statements are true about interoperating with Oracle AQ JMS with Oracle WebLogic server ？（）A、 If you select a non-XA JDBC driver， you can use WebLogic AQ JMS in both local global transactionsB、 Oracle WebLogic Server requires a JDBC driver to communicate with the Oracle AQ JMSC、 Oracle WebLogic AQ JMS stand-alone client automatically participate in global transactions managed by Oracle WebLogic ServerD、 If you select an XA JDBC driver， you can use WebLogic AQ JMS in both local and global transactions
In which case would you use a FULL OUTER JOIN?（）A、Both tables have NULL values.B、You want all unmatched data from one table.C、You want all matched data from both tables.D、You want all unmatched data from both tables.E、One of the tables has more data than the other.F、You want all matched and unmatched data from only one table.
You want to create a WebLogic domain in a production environment. Which three actions should you perform?（）A、Use a multinode WebLogic domain.B、Use a single-node WebLogic domain. C、Use clusters. D、Refrain from using clusters. E、Install WeLogic in production mode with CA signed certificates.
Which two are true about aggregate functions? （）A、You can use aggregate functions in any clause of a SELECT statement.B、You can use aggregate functions only in the column list of the select clause and in the WHERE clause of a SELECT statement.C、You can mix single row columns with aggregate functions in the column list of a SELECT statement by grouping on the single row columns.D、You can pass column names, expressions, constants, or functions as parameter to an aggregate function.E、You can use aggregate functions on a table, only by grouping the whole table as one single group.F、You cannot group the rows of a table by more than one column while using aggregate functions.
Which two statements are correct regarding the Flashback Versions Query feature？（）A、 You can use this feature to identify the committed versions of the rows， but not the uncommitted versions.B、 You can use this feature to identify the versions of V$ views.C、 You can use this feature to identify the inserts， deletes， and updates performed on a particular row but not the data definition language （DDL） operations performed on the table.D、 You can use this feature for a table only if row movement is enabled for the table.E、 You can use this feature to identify the versions of external and fixed tables.
You have lost all your database control files. To recover them， you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery？（） A、 You will need to open the database with the resetlogs command.B、 All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C、 You will use the resetlogs version of the create controlfile command.D、 You will use the noresetlogs version of the create controlfile command.E、 You will use the trace file to create a backup control file， and then you will recover the database with the recover database using backup controlfile command
You are implementing a very simple TCP/IP network. It rarely changes and you would like to use Oracle Connection Manager to filter client requests. Which naming method can you use？（）A、Only hostB、Only localC、Either host or localD、Both host and local
You want to perform a backup of your database to tape. Which backup format can you use？（）A、backup set onlyB、image copy onlyC、only user-managed backupD、both image copy and backup setE、only incremental image copy backup
You have three computers that run Windows 7. You use Windows PowerShell to perform remote administration tasks on all three computers. You need to remotely administer all three computers by usingPowerShell. Which PowerShell cmdlet should you use?（）A、Enable-PSRemotingB、Enable-PSSessionConfigurationC、New-PSDriveD、New-PSSession
You create Windows Forms applications by using the .NET Framework 3.5. You plan to use a setup project to deploy a new Windows Forms application.The application uses a component that requires the Microsoft NET Framework 1.1.You need to create a launch condition so that the application can be deployed on client computers. What should you do？（）A、Use the Depth property.B、Use the Version property.C、Use the MinVersion property.D、Use the ComponentID property.
多选题Which three are true regarding the use of outer joins? （）AYou cannot use IN operator in a condition that involves an outerjoin.BYou use (+) on both sides of the WHERE condition to perform an outerjoin.CYou use (*) on both sides of the WHERE condition to perform an outerjoin.DYou use an outerjoin to see only the rows that do not meet the join condition.EIn the WHERE condition, you use (+) following the name of the column in the table without matching rows, to perform an outerjoin.FYou cannot link a condition that is involved in an outerjoin to another condition by using the OR operator.
单选题The term restricted visibility，when used in the Rules，refers to（）.Asituations when you can see vessels on radar that you cannot see visuallyBvisibility of less than half a mileCany condition where visibility is restrictedDvisibility where you cannot see shore
多选题Which two statements are true about interoperating with Oracle AQ JMS with Oracle WebLogic server ？（）AIf you select a non-XA JDBC driver， you can use WebLogic AQ JMS in both local global transactionsBOracle WebLogic Server requires a JDBC driver to communicate with the Oracle AQ JMSCOracle WebLogic AQ JMS stand-alone client automatically participate in global transactions managed by Oracle WebLogic ServerDIf you select an XA JDBC driver， you can use WebLogic AQ JMS in both local and global transactions
多选题In which three cases would you use the USING clause?（）AYou want to create a nonequijoin.BThe tables to be joined have multiple NULL columns.CThe tables to be joined have columns of the same name and different data types.DThe tables to be joined have columns with the same name and compatible data types.EYou want to use a NATURAL join, but you want to restrict the number of columns in the join condition.
单选题You have three computers that run Windows 7. You use Windows PowerShell to perform remote administration tasks on all three computers. You need to remotely administer all three computers by usingPowerShell. Which PowerShell cmdlet should you use?（）AEnable-PSRemotingBEnable-PSSessionConfigurationCNew-PSDriveDNew-PSSession
单选题Which of the following is NOT true according to the article?AParents play an important part in their children’s growth.BThe less you use your mind the duller you may become.CIntelligence is obviously the result of where and how you live.DParents should always encourage their children.
单选题You have lost all your database control files. To recover them， you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery？（）A You will need to open the database with the resetlogs command.B All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C You will use the resetlogs version of the create controlfile command.D You will use the noresetlogs version of the create controlfile command.E You will use the trace file to create a backup control file， and then you will recover the database with the recover database using backup controlfile command