7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 1/12

Group Assignment 1

Advanced Database Systems

Group Member1. 1701497840 Alexander Gunawan

2. 1701498383 Alpha Epsilon

3. 1701497903 Armandha Aria

4. 1701497885 Ghema Nusa Persada

5. 1701497872 i!o "ali#u

Question / Problem$ne #i% !ompan& has ' depar(men(s su!h as mar)e(in%* in+en(or&* pur!hasin%*

,inan!e* - and / epar(men(s. he !ompan& wan( (o se(up da(a warehouse

en+ironmen( or (heir / epar(men( as (heir 4 depar(men(s su!h as "ar)e(in%*

-n+en(or&* ,inan!e and Pur!hasin% whi!h ha+e #een se(up wi(h da(a warehouse

en+ironmen(.

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 2/12

ased on ransa!(ion su!h as dail& a((endan!e and lea+e and o(hers /

epar(men( da(a su!h as lis( o dependen(s su!h as !ouple or !hildren* emplo&ee

posi(ion su!h as mana%er* super+isor or s(a and emplo&ee de%ree su!h as

#a!helor* mas(er or o!(oral de%ree and all lis( o depar(men(s (hen up (here is (he

desi%n o lass dia%ram o $P 6$nline ransa!(ional Pro!essin% P:

6ransa!(ional Pro!essin% :&s(em rom / epar(men(.

1. ;ha( )ind o da(a warehouse implemen(a(ion approa!h will #e sui(a#le or

(his s!heme and %i+e &our reason.

2. ;ha( )ind da(a warehouse ar!hi(e!(ure will #e sui(a#le or (his /

epar(men( and please <%ure ou( (ha( da(a warehouse ar!hi(e!(ure.

3. esi%n s(ar s!hema or (his / epar(men( #ased on 1 o example repor(

whi!h is !rea(ed #& &ou and please explain wha( is inside (he s!hema su!h as

how man& (a#les* wha( )ind o (he name o a#les* how man& primary*

foreign and composite )e& and wha( are (he&=

4. esi%n snow>a)e s!hema or (his / epar(men( #ased on 1 o example

repor( whi!h is !rea(ed #& &ou and please explain wha( is inside (he s!hema

su!h as how man& (a#les* wha( )ind o (he name o a#les* how man&

primary* foreign and composite )e& and wha( are (he&=

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 3/12

Answer / Solution

Revised Diagram

Addi(ional <eld is added (o re+ise some unde<ned rela(ion re%ardin% "ana%er oepar(men( and (o ease (he lo%i!al rela(ion amon% Emplo&ee* Posi(ion and

epar(men(.

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 4/12

Revised Column ist

 o re>e!( rhe re+ision here is (he !olumn lis( (o show (he rela(ion #e(ween (a#les

table column key join key values

Employee Emp_ID   PK

Emp_firstName

Emp_lastNameEmp_DOB

Emp_phone

Emp_email SK

Emp_hiredate

Emp_status active, inactive

Emp_Mgr_ID   FK Employee.Emp_D

Emp_Dep Emp_ID   FK Employee.Emp_D

Dep_ID   PK Department.Dep_D

Dep_Start

Dep_finish

Department Dep_ID   PK !"#$%, !&#'ar(et in), !*#nventory, !+#Finance, !#Purchasin)

Dep_name $%, 'ar(etin), nventory, Finance, Purchasin)

Dep_Mgr_ID   FK Employee.Emp_D

Emp_Pos Emp_ID   -K Employee.Emp_D

Pos_Code   -KPos_start

Pos_Finish

Pos_salary

Position Pos_code   PK !"#'ana)er, !&#Supervisor, !*#Staff  

Pos_name 'ana)er, Supervisor. Staff  

 ttendance Emp_ID   -K Employee.Emp_D

Att_Date   -K

 tt_timeN

 tt_timeout

Emp_/eave Emp_ID   -K Employee.Emp_D

Leave_code   -K

/eave_start

/eave_Finish

/eave Leave_code   PK !"#0early, !&#'aternity, !*#%eli)ion, !+#unpaid !#Other  

leave_type 0early, 'aternity, %eli)ion, 1npaid, Other  

Emp_Depen Emp_ID   -K Employee.Emp_DDepen_Code   -K Dependent.Depen_-ode

Depen_Name

Depen_DOB

Dependent Depen_code   PK !"#Spouse, !&#-hild, !*#Parent, !+#Other  

Depen_type Spouse, -hild, Parent, Other  

Emp_De)ree Emp_ID   -K Employee.Emp_D

Deg_code   -K De)ree.De)_-ode

Name_univ

De)_start

De)_finish

De)_2P

De)ree Deg_code   PK !"#Bachelor, !&#'aster, !*#Doctoral, !+#other  

De)_type Bachelor, 'aster, Doctoral, other  

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 5/12

Suitable Data !are"ouse #mplementation

 he dimensional approa!h reers (o alph ?im#all@s approa!h in whi!h i( is s(a(ed

(ha( (he da(a warehouse should #e modeled usin% a imensional "odels(ar

s!hema. he normalied approa!h* also !alled (he 3N, model 6hird Normal ,ormreers (o ill -nmonBs approa!h in whi!h i( is s(a(ed (ha( (he da(a warehouse should

#e modeled usin% an E modelnormalied model.

-n a dimensional approa!h* (ransa!(ion da(a are par(i(ioned in(o Ca!(sC* whi!h are

%enerall& numeri! (ransa!(ion da(a* and CdimensionsC* whi!h are (he reeren!e

inorma(ion (ha( %i+es !on(ex( (o (he a!(s. ,or example* a sales (ransa!(ion !an #e

#ro)en up in(o a!(s su!h as (he num#er o produ!(s ordered and (he pri!e paid or

(he produ!(s* and in(o dimensions su!h as order da(e* !us(omer name* produ!(

num#er* order ship(o and #ill(o lo!a(ions* and salesperson responsi#le or

re!ei+in% (he order.

A )e& ad+an(a%e

• Dui!) da(a re(rie+al rom da(a warehouse

• Eas& (o unders(and or #usiness users #e!ause s(ru!(ure is di+ided in(o

measuremen(sa!(s and !on(ex(dimensions

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 6/12

Suitable Data !are"ouse Arc"itecture

Available Arc"itectures

1. Basic / Single-Layer ArchitectureA sin%lela&er ar!hi(e!(ure is no( reuen(l& used in pra!(i!e. -(s %oal is (o

minimie (he amoun( o da(a s(oredF (o rea!h (his %oal* i( remo+es da(a

redundan!ies. $nl& la&er ph&si!all& a+aila#le (he sour!e la&er. -n (his !ase*

da(a warehouses are +ir(ual. his means (ha( a da(a warehouse is

implemen(ed as a mul(idimensional +iew o opera(ional da(a !rea(ed #&

spe!i<! middleware* or an in(ermedia(e pro!essin% la&er 6e+lin* 1997.

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 7/12

2. With a Staging Area / Two-Layer Architecture

 he reuiremen( or separa(ion pla&s a undamen(al role in de<nin% (he

(&pi!al ar!hi(e!(ure or a da(a warehouse s&s(em* as shown #elow. Al(hou%h i(

is (&pi!all& !alled a (wola&er ar!hi(e!(ure (o hi%hli%h( a separa(ion #e(ween

ph&si!all& a+aila#le sour!es and da(a warehouses* i( a!(uall& !onsis(s o our

su#seuen( da(a >ow s(a%es 6e!h(en#Hr%er* 2001.

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 8/12

3. With a Staging Area and Data Marts

alph ?im#all* on (he o(her hand* ad+o!a(es wha( he !alls a #us ar!hi(e!(ure

da(a warehouse. /is me(hodolo%& spe!i<es !onormed dimensions* where

mul(iple a!( (a#les share !ommon dimensional (a#les. Ea!h o (hese a!(

(a#les represen(s a da(a mar(. he row o dimensional (a#les (ha( all (he a!(

(a#les plu% in(o is (he #us* and #e!ause* or example* (he <nan!e and (hesales da(a mar(s #o(h use (he same produ!( dimension (a#le (here is

in(e%ra(ion #e(ween depar(men(s.

 he mos( sui(a#le ar!hi(e!(ure would #e With a Staging Area and Data Marts

i(a(ion

h((psdo!s.ora!le.!om!d10500I01ser+er.920a9'520!on!ep(.h(m 

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 9/12

Star Sc"ema $or current %R Department

Jsin% :(ar :!hema

:ample epor( epar(men(al "on(hl& A((endan!e 6"Aepor(

Assump(ions

• "on(hl& A((endan!e K 6mon(hl& sum o /ours o A((endan!e L 6mon(hl&

unpaid lea+es M wor) hours

• wor) hoursK8

elow is E Pro!ess rom (ransa!(ional (a#le

&ables/Column #nvolved '()tract* +ew &able '&rans$orm* as Dimension Generate Report 'oad* / ,act table

Employee   Emp_ID (mply#n$o (mployee#D 'P-* DMAReport   EmployeeID

Emp_firstName   EmployeeName EmployeeName

Emp_lastName

Emp_email   EmployeeEmail EmployeeEmailEmp_Mgr_ID

Emp_Dep   Emp_ID Dept#n$o (mployee#D 'P-*

Dep_ID

Dep_Start   Dep_Start

Department   Dep_ID

Dep_name   DepartmentName DepartmentName

Dep_Mgr_ID   ManagerName ManagerName

Emp_Pos   Emp_ID Pos#n$o (mployee#D 'P-*

Pos_Code

Pos_start   Pos_start

Pos_Finish   Pos_Finish

Position   Pos_code

Pos_name   PositionName PositionName

Attendance   Emp_ID Attend#n$o (mployee#D 'P-*

Att_Date   Att_Date

 .tt_timeN   Att_timeIN

 .tt_timeout   Att_timeout

Emp_Leave   Emp_ID

Leave_code

/eave_start   Leave_start

/eave_Finish   Leave_Finish

Leave   Leave_code

leave_type   leave_type=04 unpai!"

Atten!#our =sumAtt_timeout $Att_timeIN" inmonthAtt_Date"

Leave#our =Leave_Finish %LeaveStart" inmonthAtt_Date"

&otal#ourInMonth =Atten!#our $ Leave#our

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 10/12

wi(h :(ar :!hema* (he repor( will in+ol+ed 4 Dimension and !act Ta"les 

ex(ra!(ed rom 8 ori%inal (a#le rom ransa!(ional Pro!essin% :&s(em. Ea!h

imension will ha+e #rimary $ey as a resul( o denormalia(ion pro!ess o (he

ori%inal (a#les

:(ar :!hema ia%ram will #e as ollowDept#n$o Pos#n$o

(mployee#D 'P-* (mployee#D 'P-*

Dep_Start Pos_start

DepartmentName Pos_Finish

ManagerName PositionName

DMAReport

(mployee#D

EmployeeName

EmployeeEmail

'eportMonth

DepartmentName

ManagerName

'eportMonthPositionName

Atten!#our

Leave#our

&otal#ourInMonth

(mply#n$o Attend#n$o

(mployee#D 'P-* (mployee#D 'P-*

EmployeeName Att_Date

EmployeeEmail Att_timeIN

Att_timeout

Leave_start

Leave_Finish

leave_type=04

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 11/12

Snow$la.e Sc"ema $or current %R Department

Jsin% :now>a)e :!hema

:ample epor( ependen( oun( o ompan&Bs Emplo&ee in ea!h epar(men(

Assumption

• No de(ailed ino or ea!h emplo&ee 6name* $* e(!

• ex(ra!( onl& small par( o ori%inal (a#le 6or as(er perorman!e

Purposes

-( !an #e use (o oun( o(al ependen( o Emplo&ee as well as oun( o Emplo&eeBs

ependen( %rouped #&

• ependen( (&pe 6:pouse* hild* e(!

• epar(men(

• Emplo&ee Posi(ion

elow is E Pro!ess rom (ransa!(ional (a#le

&ables/Column #nvolved '()tract* +ew &able '&rans$orm* as Dimension Generate Report 'oad* / ,act table

ta3le   column   ta3le   column   ta3le   column

Employee Emp_ID (P!   Employee Emp_ID (P!   Dependent-ountDept   EmployeeD

Emp_status Emp_status#ctive

Emp_Dep Emp_ID (C!   Emp_Dep Emp_ID (C!

Dep_ID (C! Dep_ID (C!   Dep_D

Dep_Start Dep_StartDep_finish Dep_finish

Department Dep_ID (P!   Department Dep_ID (P!

Dep_name Dep_name

Emp_Pos Emp_ID (C!   Emp_Pos Emp_ID (C!

Pos_code (C! Pos_code (C!   Pos_-ode

Pos_start Pos_start

Pos_Finish Pos_Finish

Position Pos_code (P!   Position Pos_code (P!

Pos_name Pos_name

Emp_Depen Emp_ID (C!   Emp_Depen Emp_ID (C!

Depen_Code (C! Depen_Code (C!   Depen_-ode

Depen_Name Depen_Name

Depen_DOB Depen_DOB

Dependent Depen_code (P!   Dependent Depen_code (P!

Depen_type Depen_type

Depen_-ount

7/23/2019 7023T - TK1 - W4 - S5 - R1, 20151011_lzt4_team4

http://slidepdf.com/reader/full/7023t-tk1-w4-s5-r1-20151011lzt4team4 12/12

wi(h :now>a)es :!hema* (his repor( will in+ol+ed % Dimension and !act Ta"les 

ex(ra!(ed rom 7 ori%inal (a#les in ransa!(ional Pro!essin% :&s(em wi(h simpli<ed

!olumn lis( (o )eep (he perorman!e hi%h. Ea!h imension will ha+e :e+eral )e&s o

Primar& )e&s and omposi(e ?e&s as a resul( o minimum denormalia(ion pro!ess

o (he ori%inal (a#les and (o minimie redundan!&

:now>a)es :!hema ia%ram will #e as ollow

4

Employee

Emp_ID (P! Position

Emp_status#.ctive Pos_code (P!

Pos_name

DependentCountDept Emp_Pos

EmployeeD Emp_ID (C!

Dep_D Pos_code (C!

Pos_-ode Pos_start

Depen_-ode Pos_Finish

Depen_-ount

Emp_Dep Emp_Depen

Emp_ID (C! Emp_ID (C!

Dep_ID (C! Depen_Code (C!

Dep_Start Depen_Name

Dep_finish Depen_DOB

Department Dependent

Dep_ID (P! Depen_code (P!

Dep_name Depen_type