国开】《数据库基础与应用》【形考】形考任务1-4答案.pdf

国开】《数据库基础与应用》【形考】形考任务1-4答案--第1页

国开】《数据库基础与应用》【形考】形

考任务1-4答案

Theformativeassessmentofthiscourseconsistsoftwoparts:

XXXofthelearningprocess。Thereareatotaloffourformative

assessmentassignments。eachaccountingfor15%ofthetotal

grade。asdetailedinthepaper-basedXXX.

XXXofthelearningprocessaccountsfor40%ofthe

formativeassessmentgradeandisdesignedandassignedbyeach

branch(itisXXX)。Eachchapterofthemaintextbookofthis

coursefromChapter7toChapter11isXXX。andeachbranch

canchooseasneeded.

XXXXXX:

OrderChapterFormStartTimeEndTimeWeight

1Chapters1-3FormativeAssessmentAssignmentWeek3

EndofWeek1015%

2Chapters4-5FormativeAssessmentAssignmentWeek6

EndofWeek1515%

国开】《数据库基础与应用》【形考】形考任务1-4答案--第1页

国开】《数据库基础与应用》【形考】形考任务1-4答案--第2页

3Chapters6-8FormativeAssessmentAssignmentWeek9

EndofWeek1515%

4Chapters9-11XXX10EndofWeek1515%

5DailyActivityLearningRecordsWeek1EndofWeek16

40%

Eachformativeassessmenttaskisscoredonapercentage

basis。andtheXXXbythecorrespondingweight。Thesumof

thescoresistheXXXgradeforthecourse.

FormativeAssessmentTask1forDatabaseFundamentalsand

ns:

1.Inthefourstagesofcomputerdataprocessing。thethird

stageis(databasesystem).

2.TheattributeinanentitythatcanXXXiscalled(akey).

3.XXXdatamodelbelongsto(logicaldatamodel).

4.IfentityAandentityBhaveaone-to-manynship。and

entityBandentityChaveamany-to-onenship。thenentityAand

entityChavea(many-to-many)nship.

国开】《数据库基础与应用