Question

Convert below table to 2NF. Draw the table(s) with correct values. branchNo branchRegion branchTelno mgrStaffNo mgrName...

Convert below table to 2NF. Draw the table(s) with correct values.

branchNo

branchRegion

branchTelno

mgrStaffNo

mgrName

mgrPosition

mgrSalary

BR001

North

503-555-3618

S1500

Daniel Jacobs

Jr Manager

50000

BR002

South

206-555-6756

S0010

Mary Anderson

Sr Manager

55500

BR003

East

210-371-3444

S0145

Peter McDonalds

Sr Manager

60000

BR004

West

506-455-2131

S2250

Sally Stockholm

Jr Manager

55000

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Answer #1

2NF

Functional dependencies :

branchNo -> branchRegion, branchTelNo,mgrStaffNo

mgrStaffNo -> mgrName,mgrPosition, mgrSalary

Tables in 2NF

Branch(branchNo , branchRegion, branchTelNo, mgrStaffNo)

branchNo

branchRegion

branchTelno

mgrStaffNo

BR001

North

503-555-3618

S1500

BR002

South

206-555-6756

S0010

BR003

East

210-371-3444

S0145

BR004

West

506-455-2131

S2250

Manager(mgrStaffNo, mgrName, mgrPosition, mgrSalary)

mgrStaffNo

mgrName

mgrPosition

mgrSalary

S1500

Daniel Jacobs

Jr Manager

50000

S0010

Mary Anderson

Sr Manager

55500

S0145

Peter McDonalds

Sr Manager

60000

S2250

Sally Stockholm

Jr Manager

55000

underlined are primary keys and italicised are foreign keys.

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