• Wrong document? Swap it for free
  • Written by students who passed
  • Immediately available after payment
  • Read online or as PDF
Sell
Where do you study
Your language
Document preview thumbnail
Preview 3 out of 30 pages
Exam (elaborations)

Introduction To Databases Exam 1 - 2 Study Guide Q And A

Document preview thumbnail
Preview 3 out of 30 pages

INTRODUCTION TO DATABASES EXAM 1 - 2 STUDY GUIDE Q AND A

Content preview

INTRODUCTION TO DATABASES
EXAM 1 - 2 STUDY GUIDE Q AND A



Agjdatagj____gjservesgjasgjagjconceptualgjblueprintgjorgjagjdatabasegjandgjitsgjstructure?gj-
j

gjanswer--Model




Whatgjisgjthegjnamegjgivengjtogjthegjfieldgjthatgjservesgjtogjuniquelygjidentifygjanygjgivengjreco
rdgjingjthatgjtable?gj-gjanswer--Primarygjkey

SpreadsheetsgjaregjsuperiorgjtogjRDBMSgjingjtermsgjofgjminimizinggjdatagjinconstanciesgj-
gjanswer--False



Agj____gjisgjagjdatagjbasegjobjectgjaboutgjwhichgjdatagjwillgjbegjstoredgj-gjanswer--Entity

Ifgjusedgjasgjagjprimarygjkey,gjyourgjNKUgjusernamegjwouldgjbegjagjsurrogategjprimarygjkey?
gj-gjanswer--False



Whatgjisgjthegjnamegjgivengjtogjangjattributegjorgjfieldgjthatgjservesgjtogjenforcegjreferentialgjin
tegrity?gj-gjanswer--ForeigngjKey

____gjisgjcontextualizedgjdatagjwithgjthegjpotentialgjtogjbecomegjknowledgegj-gjanswer--
Information

Thegjrelationshipgjbetweengjprojectgjandgjemployeegjisgjmanygjtogjmany,gjhowgjmanygjtable
sgjwillgjbegjneededgjforgjthisgjrelationshipgjingjthegjdatabase?gj-gjanswer--3gjtables

Agj___gjisgjagjcharacteristicgjorgjpropertygjofgjangjentitygj-gjanswer--Attribute

Whengjagjdatagjmodelgjisgjimplementedgjasgjagjphysicalgjdatabase,gjitsgjattributesgjbecome
?gj-gjanswer--Fields

Ingjagjonegjtogjmanygjrelationships,gjthegjforeigngjkeygjalwaysgjresidesgjingjthegjparentgjtablegj
-gjanswer--False

Agjprimarygjkeygjthatgjconsistsgjofgjmoregjthangjonegjcolumngjisgjcalledgjagj___gjkeygj-
gjanswer--Composite



Foreigngjkeysgjaregjautomaticallygjindexedgj-gjanswer--False

Togjsatisfygjthegjconditiongjofgjthegjentitygjintegrity,gjallgjprimarygjkeygjvaluesgjmustgjbegjuniq
uegjandgj___gj-gjanswer--NotgjNull

,Agj___gj___gjexpressesgjagjusergjrequirementgjingjagjwaygjthatgjenablesgjdatagjmodelinggj-
gjanswer--BusinessgjRule



Agjforeigngjkeygjvaluegjcangjbegjnullgj-gjanswer--True

Agjcolumngjthatgjisgjeligiblegjtogjservegjasgjagjprimarygjkeygjisgjagj___gjkeygj-gjanswer--
Candidate

Agjconceptualgjmodelgjisgjsoftwaregjandgjhardwaregjindependentgj-gjanswer--True

Whichgjtypegjofgjdatagjmodelgjisgjsoftwaregjdependentgjandgjhardwaregjindependentgj-
gjanswer--Logical



___gjrefersgjtogjthegjminimumgjnumbergjofgjrelationsgjbetweengjentity'sgj-gjanswer--
Optionality

Angjindexgjwillgjslowgjdowngjagjquerygjmadegjwithgjthegjinsertgjcommandgj-gjanswer--True

Agjsequelgjstatementgjbasedgjongjthisgjcommandgjyieldsgjallgjrowsgjingjonegjtablegjthatgjaregjn
otgjfoundgjingjthegjothergj-gjanswer--Difference

Agjdatabasegj___gjtakesgjlogicalgjdatagjmodelgjandgjimplementsgjitgjongjagjdatabasegjserverg
j-gjanswer--Architect



3gjcoregjcomponentsgjtogjangjRDBMS,gjnamegjonegjofgjthemgj-gjanswer--
Interface,gjSQLgjEngine,gjStoredgjTables

___gjisgjdatagjaboutgjdatagj-gjanswer--Metagjdata

Namegjonegjofgjthegjothergj2gjnotationgjsystemsgj-gjanswer--Crow'sgjFoot,gjChengjorgjUML

SQLgj-gjanswer--Structuredgjquerygjlanguage.gjUsedgjbygjSQL-
basedgjdatabases,gjsuchgjasgjMicrosoft'sgjSQLgjServer.gjWebsitesgjintegratedgjwithgjagjSQ
LgjdatabasegjaregjsubjectgjtogjSQLgjinjectiongjattacks.gjInputgjvalidationgjwithgjformsgjandgjst
oredgjproceduresgjhelpgjpreventgjSQLgjinjectiongjattacks.gjMicrosoft'sgjSQLgjServergjusesgj
portgj1433gjbygjdefault.

EnterprisegjDatabasegj-gjanswer--
Agjdatabasegjusedgjacrossgjdepartmentsgjthroughoutgjagjlargegjorganization.

DatagjWarehousegj-gjanswer--Agjlogicalgjcollectiongjofgjinformationgj-
gjgatheredgjfromgjmanygjdifferentgjoperationalgjdatabasesgj-

gjthatgjsupportsgjbusinessgjanalysisgjactivitiesgjandgjdecision-makinggjtasks.



Ingjlargergjorganizations,gjmuchgjofgjthegjdatagjingjangjRDBMSgjgetsgjloadedgjintogjagjdatagjw
arehouse,gjwhichgjmakesgjitgjeasiergjtogjknow,gjwhichgjtypesgjofgjcustomersgjpurchasesgjwh
ichgjtypesgjofgjproducts.

, DatabasegjAdministratorgj-gjanswer--
Agjfoundationalgjunderstandinggjofgjrelationalgjdatabasesgjisgjcrucialgjforgjprocuring,gjconfi
guring,gjandgjmaintaininggjdatabasegjandgjdevelopmentgjservers.

DatabasegjDesignersgjandgjDatagjAnalystsgj-gjanswer--
Manygjreportsgjdeliveredgjtogjdecisiongjmakersgjquerygjagainstgjandgjdrawgjfromgjrelationalg
jdatabases.



ThesegjqueriesgjaregjtypicallygjpreparedgjandgjexecutedgjingjagjGUI;gjsomegjaregjusedgjtogjp
opulategjdatagjwarehouses.

Databasegjdesignersgjproducegjdatagjmodelsgjbygjworkinggjwithgjdatabasegjusers.

SoftwaregjDevelopersgj-gjanswer--
ManygjApplicationsgjquerygjagainst,gjdrawgjfrom,gjandgjpopulategjrelationalgjdatabases.

ThesegjqueriesgjaregjSQLgjstatementsgjembeddedgjingjwhatevergjcodegjthegjappgjisgjwritten
gjin.



Spreadsheetsgjaregjnotgjagjsubstitutegjforgjagjrelationalgjdatabase.gj-gjanswer--
Limitationgj#1
Datagjredundanciesgjandgjinconsistenciesgjaregjinevitable.
There'sgjnogjreferentialgjintegrity,gjsogjthegjsamegjdatagjmaygjappeargjingjmultiplegjplaces.
Ingjturn,gjrecordsgjmaygjgetgjupdatedgjingjonegjworksheetgjbutgjnotgjthegjother.
Thus,gjthegjlikelihoodgjforgjhumangjerrorgjisgjgreater.

Limitation#2
It'sgjmuchgjmoregjtediousgjandgjinefficientgjtogjproducegjdetailedgjreports.

RDBMSgjaregjdesignedgjtogjstoregjhighlygjstructuredgjdata.gj-gjanswer--
OperationalgjDatagjaregjamenablegjtogjstructuregjbecausegjwegjknowgjwhatgjallgjthegjentitie(
table)gjandgjattributes(columns)gjare,gjandgjwegjknowgjthegjrelationshipsgjbetweengjentities
.

EntitygjandgjAttributegjNamesgj-gjanswer--
Entitygjandgjattributegjnamesgjshouldgjrevealgjwhatgjtheygjrepresent;gjusersgjshouldn'tgjhav
egjtogjwondergjandgjguess.
ForgjExample,gjthegje-
mailgjaddressgjofgjthegjcontactgjpersongjforgjagjvendorgjshouldgjbegjrepresentedgjasgjmainC
ontactEmailgjorgjmain_contact_email,gjnotgjmnCntctEmIAdrs.

Entitygjandgjattributegjnamesgjwithgj2+gjwordsgjshouldgjeithergjusegjunderscoresgjorgjcapitali
zegjthegjfirstgjlettergjofgjthegjsecondgjandgjthirdgjetc.gjword.gjcustomerCitygjcustomer_city

BusinessgjRulegj-gjanswer--
Agjbusinessgjrulegjisgjstatementgjthatgjimposesgjsomegjformgjofgjconstraintgjongjagjspecificgja
spectgjofgjthegjdatabase,gjsuchgjasgjthegjelementsgjwithingjagjfieldgjspecificationgjforgjagjparti
culargjfieldgjorgjthegjcharacteristicsgjofgjagjgivengjrelationship

Agjmanager,gjexecutive,gjorgjcommitteegjmustgj

Document information

Uploaded on
September 29, 2025
Number of pages
30
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers
$14.49

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
Sold
26
Followers
2
Items
3415
Last sold
1 month ago




Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions