已知PROJECT（J#，JNAME，DATE），要求若没有视图或约束引用属性DATE，则删除该列，若有视图或约束引用该属性，则不删除该列。则可实现上述语义的语句是（）A、DELETE TABLE PROJECT DROP DATE CASCADEB、DELETE TABLE PROJECT DROP DATE RESTRICTC、ATLET TABLE PROJECT DROP DATE CASCADED、ATLET TABLE PROJECT DROP DATE RESTRICT
已知PROJECT（J#，JNAME，DATE），要求若没有视图或约束引用属性DATE，则删除该列，若有视图或约束引用该属性，则不删除该列。则可实现上述语义的语句是（）
- A、DELETE TABLE PROJECT DROP DATE CASCADE
- B、DELETE TABLE PROJECT DROP DATE RESTRICT
- C、ATLET TABLE PROJECT DROP DATE CASCADE
- D、ATLET TABLE PROJECT DROP DATE RESTRICT
相关考题：
Which of the following is indicative of negative float?A.The late start date is earlier than the early start date.B.The critical path supports the imposed end date.C.The early finish date is equal to the late finish date.D.When leads are employed in the schedule.E.The project is sinking.
Standard deviation of project completion is _____ .A a relationship of the uncertainty of critical path activities.B an indicator of project end date target confidenceC a function of critical path, leveling and project costs.D A and BE All of the above.
130 Standard deviation of project completion is _____ .A. a relationship of the uncertainty of critical path activities.B. an indicator of project end date target confidenceC. a function of critical path, leveling and project costs.D. A and BE. All of the above
● Which of the following is indicative of negative float?A The late start date is earlier than the early start date.B The critical path supports the imposed end date.C The early finish date is equal to the late finish date.D When leads are employed in the schedule.E The project is sinking.
已知PROJECT(J#,JNAME,DATE)，要求若没有视图或约束引用属性DATE，则删除该列，若有视图或约束引用该属性，则不删除该列。可实现上述语义的语句是______。A．DELETE TABLE PROJECT DROP DATE CASCADEB．DELETE TABLE PROJECT DROP DATE RESTRICTC．ALTER TABLE PROJECT DROP DATE CASCADED．ALTER TABLE PROJECT DROP DATE RESTRICT
● The earned value technique is a commonly used method of performance measurement. It integrates project scope, cost, and schedule measures to help the project management team assess project performance. If a project’s Schedule Performance Index(SPI=EV/PV) value less than 1.0, it means that __(74)__.（74）A．the project is ahead of its planned scheduleB．less work was completed than was plannedC．the cost overrun for work completedD．the cost under-run of performance to date
The earned value technique is a commonlyused method of performance measurement． It integrates project scope, cost, andschedule measures to help the project management team assess projectperformance．If a project’s Schedule Performance Index（SPI=EV/PV） value less than 1.0, itmeans that （74）．A.the project is ahead of its planned scheduleB.less work was completed than was plannedC.the cost overrun for work completedD.the cost under-run of performance to date
在Project2003中，以下关于总览项目的叙述错误的是( )。A.总览项目可以使用户对报表体情况有所了解B.Project 2003 提供了很多任务视图、资源视图和组合图视图C.Project2003 提供了多个可以进行简单选择、预览和打印的内置报表D.Project 2003 提供的报表汇集了最常用的信息集
During planning you sit down and estimate the time needed for each task and total them to come up with the project estimate This duration is what you commit to complete the project. What is wrong with the scenario? ()A.The team did not create the estimate and estimating tales too long using that methodB.The team did not create the estimate and a network diagram was not usedC.The estimate is too long and should be created by managementD.The project estimate should be the same as the customer's required completion date
关系模式STJ（S#，T，J#）中，存在函数依赖：（S#，J#）→T，（S#，T）→J#，T→J#，则（）。A、关系STJ满足1NF，但不满足2NFB、关系STJ满足2NF，但不满足3NFC、关系STJ满足3NF，但不满足BCNFD、关系STJ满足BCNF，但不满足4NF
In project management, a （ ）is a list of a project’s milestones, activities, and deliverables, usually with intended start and finish date. Those items are often estimated in terms of resource allocation, budget and duration, linked by dependencies and scheduled events. A、scheduleB、WBSC、SOWD、charter
以下关于总揽项目的叙述错误的是（）。A、Project2003提供了多个可以进行简单选择、预览和打印的内置报表B、Project2003提供了很多任务视图、资源视图和组合图视图，它们可以用不同格式显示在Project中输入的项目信息C、Project2003提供的报表汇集了最常用的信息集，可以用来管理项目、调整资源、控制成本、分析潜在问题以及交流进度情况D、总揽项目可以使用户对视图的整体情况有所了解
在Project 2003中，以下关于总览项目的叙述错误的是（）。A、总览项目可以使用户对报表体情况有所了解B、Project 2003提供了很多任务视图、资源视图和组合图视图C、Project 2003提供了多个可以进行简单选择、预览和打印的内置报表D、Project 2003提供的报表汇集了最常用的信息集
在显示查询结果时，若要将数据表中的“date”字段名显示为“日期”，则应进行的相关设置是（）A、在查询设计视图的“字段”行中输入“日期”B、在查询设计视图的“显示”行中输入“日期”C、在查询设计视图的“字段”行中输入“日期：date”D、在查询设计视图的“显示”行中输入“日期：date”
The project manager is developing a project schedule. The project manager negotiated with all the execution organizations， and the task times are as short as possible. After manipulating the schedule， the project completion date is still beyond the date requested by the business owners of the project. The project manager believes that the content agreed on for the project is appropriate， and concludes that this schedule should be taken to the business owners and renegotiated. Which one of the following tools will help the project manager justify the revised schedule？（）A、Data flow modelB、The project critical pathC、Resource loading chartD、WBS （Work Breakdown Structure）
单选题您需要创建PROJECT_HIST表。该表必须符合下列要求： 该表必须包含EMPLOYEE_ID和TASKED_HOURS列以存储数值数据； 该表必须包含START_DATE和END_DATE列以存储日期值； 该表必须包含HOURLY_RATE和PROJECT_COST列以存储精度与小数位数分别为5，2和10，2的数值数据； 该表必须具有EMPLOYEE_ID和START_DATE列的组合主键； 评估以下CREATETABLE语句： CREATETABLEproject_hist（employee_idNUMBER，start_dateDATE，end_dateDATE，tasked_hoursNUMBER，hourly_rateNUMBER（5，2），project_costNUMBER（10，2），CONSTRAINTproject_hist_pkPRIMARYKEY（employee_id，start_date））； 该CREATETABLE语句满足多少要求（）A四条要求一条也不满足B四条要求全部满足C仅满足其中的三条要求D仅满足其中的两条要求
单选题已知PROJECT（J#，JNAME，DATE），要求若没有视图或约束引用属性DATE，则删除该列，若有视图或约束引用该属性，则不删除该列。则可实现上述语义的语句是（）ADELETE TABLE PROJECT DROP DATE CASCADEBDELETE TABLE PROJECT DROP DATE RESTRICTCATLET TABLE PROJECT DROP DATE CASCADEDATLET TABLE PROJECT DROP DATE RESTRICT
单选题在显示查询结果时，若要将数据表中的“date”字段名显示为“日期”，则应进行的相关设置是（）A在查询设计视图的“字段”行中输入“日期”B在查询设计视图的“显示”行中输入“日期”C在查询设计视图的“字段”行中输入“日期：date”D在查询设计视图的“显示”行中输入“日期：date”
问答题Practice 8 ● You are a Project Team Leader. You have had to cancel your next project meeting because some of the members of your team will be abroad. ● Write a memo to your project team: ● informing them of the cancellation and giving the reason； ● stating a new date and time for the meeting； ● requesting suggestions for the agenda. ● Write 40—50 words.
单选题关系模式STJ（S#，T，J#）中，存在函数依赖：（S#，J#）→T，（S#，T）→J#，T→J#，则（）。A关系STJ满足1NF，但不满足2NFB关系STJ满足2NF，但不满足3NFC关系STJ满足3NF，但不满足BCNFD关系STJ满足BCNF，但不满足4NF