评估以下语句：ALTERTABLEemployeeSETUNUSED（fax）；此语句将完成什么任务（）A、删除FAX列B、释放FAX列数据使用的磁盘空间C、阻止显示FAX列数据，方法是逻辑删除该列。D、阻止在EMPLOYEE表中添加新的FAX列
评估以下语句：ALTERTABLEemployeeSETUNUSED（fax）；此语句将完成什么任务（）
- A、删除FAX列
- B、释放FAX列数据使用的磁盘空间
- C、阻止显示FAX列数据，方法是逻辑删除该列。
- D、阻止在EMPLOYEE表中添加新的FAX列
相关考题：
在oracle数据库中,你想访问EMPLOYEE表中的employee列该列的数据存储在操作系统文件中,你需要在表中增加一列,选择什么数据类型?() A.BFILEB.LONGRAWC.BLOBD.CLOB
在Excel工作表中，编码与分类信息以“编码|分类”的格式显示在了一个数据列内，若将编码与分类分为两列显示，最优的操作方法是：A)重新在两列中分别输入编码列和分类列，将原来的编码与分类列删除。B)将编码与分类列在相邻位置复制一列，将一列中的编码删除，另一列中的分类删除。C)使用文本函数将编码与分类信息分开。D)在编码与分类列右侧插入一个空列，然后利用Excel的分列功能将其分开。
在图示机构中，已知：Fp，L=2m，r=0.5m，θ=30°，BE=EG，CE=EH，则支座A的约束力为（ ）。 A、 FAx=Fp（←），FAy=1、75Fp（↓） B、 FAx=0， FAy=0、75Fp（↓） C、 FAx=0， FAy=0、75Fp（↑） D、 FAx=Fp（→），FAy=1、75Fp（↑）
教师在编辑Excel工作表时，要将B列与H列的数据对调，下面操作中正确的是（）。A、在H列之前插入一个空列→将B列数据复制到该空列H上→将原H列即现在的I列复制到B列→单击列标I，再单击“删除”按钮B、在B列之后插入一空列→将H列的数据复制到该空列C上→将原B列复制到原H列上→单击列标B再单击工具栏中的“删除”按钮C、在B列之前插入一空列→将H列的数据复制到该空列B上→将原B列（现C列）复制到原H列（现为I列）上→单击列标C再单击工具栏中的“删除”按钮D、以上都不对
Which port type must be connected to the fax device for the Cisco Unified CallManager Express to support fax pass-through, T.38, and Cisco fax relay?（）A、FXO B、FXSC、ATA D、FAX
某个ExCel工作表C列所有单元格的数据是利用B列相应单元格数据通过公式计算得到的，此时如果将该工作表B列删除，那么，删除B列操作对C列（）A、不产生影响B、产生影响，但C列中的数据正确无误C、产生影响，C列中数据部分能用D、产生影响，C列中的数据失去意义
You are delegated administrative control of the Administration organizational unit （OU）. The Administration OU has 12 Window 2000 Professional computers that were recently purchased. Each computer has a fax modem. Each computer has the Fax service installed with default values and settings. A user named Helene reports that she can use Microsoft Word 2000 to sendfaxes， but she cannot receive any faxes by using the fax printer. She also informs you that she cannot reconfigure the Fax service on her computer. You want to reconfigure the Fax service correctly. You want to accomplish this with the least amount of administrative effort. You logon to Helene’s computer by using local Administrator account. What should you do next？ （）A、Use Fax Service Management to start the Fax service, and configure the Fax service to start automaticallyB、Use Fax Service Management to select the Fax Management service, and enable the device to receive faxesC、Use Fax in Control Panel to reinstall the Fax service, and configure the Fax services to receive faxesD、Use Fax in Control Panel to add a fax printer, and configure the fax print device to receive faxes.
“产品”表包含以下列： 产品标识 NUMBER(4) 产品名称 VARCHAR2(25) 产品价格 NUMBER(3) 您想向“产品”表中添加以下数据行： (1) 在“产品标识”列中添加 Null 值 (2) 在“产品名称”列中添加“6-foot nylon leash” (3) 在“产品价格”列添加“10” 于是，您发出了以下语句： INSERT INTO 产品 VALUES (null,'6-foot nylon leash', 10); 请问，您向表中添加了什么行数据？（）A、创建该行时三个列中使用的值都正确。B、创建该行时三个列中有两个列使用的值正确。C、创建该行时三个列中有一个列使用的值正确。D、该行的创建完全错误。没有任何数据添加到正确的列中。
在oracle数据库中，你想访问EMPLOYEE表中的employee列该列的数据存储在操作系统文件中，你需要在表中增加一列，选择什么数据类型？（）A、BFILEB、LONGRAWC、BLOBD、CLOB
The Neilson Farm has tried, without success, to use both Cisco fax relay and T.38 faxing services with Cisco Unified CallManager Express. The only faxing service that seems to work is fax pass-through. Which port type is connected to their fax device?（）A、FXO B、FXS C、ATA D、FAX E、EM
You are a network administrator for ExamSheet.net's Windows 2000 network. The purchasing department has recently purchased 10 new computers. Each computer has a fax modem. You create an NTFS volume and install Windows 2000 Professional on the computers. You then install the Fax service with the default values and settings. Users report that when they attempt to fax a document by using the fax printer that is installed, the document does not fax. You want users to be able to fax documents. What should you do?（）A、Enable the Print Spooler service on the computers.B、Apply the Basicwk.inf security template on the computer.C、Apply the Hisecws.inf security template on the computer.D、Enable the Fax service in the Computer Management on the computers.E、Grant their user account theWriteNTFS permission on the MSFax folder.
You need to configure Microsoft Windows Fax and Scan to send and receive faxes. What should you do？ （）A、Create a new fax account.B、Configure the fax settings to require manual receipt of faxes.C、Configure the fax security settings to permit Send and Receive.D、Configure the Transmitting Subscriber ID （TSID） of the fax with the correct phone number.
You are in charge of the admin organization unit （OU） of your company. Your company has recently purchased 19 new Windows 2000 Professional computers with Fax Modems pre-installed. Each computer has the fax service installed with default settings. Hayley has been assigned one of the new fax enabled computers. She reports that Microsoft Word 2000 will only send faxes， but her computer will not receive any. She also informs you that she cannot configure the fax server on her computer. You want to configure the fax server correctly and with the least amount of administrative effort. You logon to Hayley’s computers by using the local administrative account. What should you do next？（）A、Use the Fax Service to start the fax service and configure the Fax service to start automaticallyB、Use the Fax Service Management tool to enable the device to receive faxesC、Use the Fax in Control Panel to reinstall the fax server and configure the fax services to receive faxes. D、Use Fax in Control Panel to add a fax operator and run fax print device to receive faxes.
单选题在oracle数据库中，你想访问EMPLOYEE表中的employee列该列的数据存储在操作系统文件中，你需要在表中增加一列，选择什么数据类型？（）ABFILEBLONGRAWCBLOBDCLOB
单选题Which port type must be connected to the fax device for the Cisco Unified CallManager Express to support fax pass-through, T.38, and Cisco fax relay?（）AFXO BFXSCATA DFAX
单选题You need to configure Microsoft Windows Fax and Scan to send and receive faxes. What should you do？ （）ACreate a new fax account.BConfigure the fax settings to require manual receipt of faxes.CConfigure the fax security settings to permit Send and Receive.DConfigure the Transmitting Subscriber ID （TSID） of the fax with the correct phone number.
单选题You are in charge of the admin organization unit （OU） of your company. Your company has recently purchased 19 new Windows 2000 Professional computers with Fax Modems pre-installed. Each computer has the fax service installed with default settings. Hayley has been assigned one of the new fax enabled computers. She reports that Microsoft Word 2000 will only send faxes， but her computer will not receive any. She also informs you that she cannot configure the fax server on her computer. You want to configure the fax server correctly and with the least amount of administrative effort. You logon to Hayley’s computers by using the local administrative account. What should you do next？（）AUse the Fax Service to start the fax service and configure the Fax service to start automaticallyBUse the Fax Service Management tool to enable the device to receive faxesCUse the Fax in Control Panel to reinstall the fax server and configure the fax services to receive faxes. DUse Fax in Control Panel to add a fax operator and run fax print device to receive faxes.
单选题评估以下语句：ALTERTABLEemployeeSETUNUSED（fax）；此语句将完成什么任务（）A删除FAX列B释放FAX列数据使用的磁盘空间C阻止显示FAX列数据，方法是逻辑删除该列。D阻止在EMPLOYEE表中添加新的FAX列
单选题You are a network administrator for ExamSheet.net's Windows 2000 network. The purchasing department has recently purchased 10 new computers. Each computer has a fax modem. You create an NTFS volume and install Windows 2000 Professional on the computers. You then install the Fax service with the default values and settings. Users report that when they attempt to fax a document by using the fax printer that is installed, the document does not fax. You want users to be able to fax documents. What should you do?（）AEnable the Print Spooler service on the computers.BApply the Basicwk.inf security template on the computer.CApply the Hisecws.inf security template on the computer.DEnable the Fax service in the Computer Management on the computers.EGrant their user account theWriteNTFS permission on the MSFax folder.
单选题语句delete from sc表明（）A删除sc中的全部记录B删除基本表scC删除基本表sc中的列数据D删除基本表sc中的部分行