Database Management Systems (dbms)


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Key Types of a Relation..

Key Types of a Relation..

  • Foreign key

Dept_No

Dept_Name

Phone

D01

Construction

0415670045

D02

Finance

0412222652

D03

Personal

FK
Project
Department

Prj_No

Prj_Name

Location

Dept

P01

ABC Auditing

Matara

D02

P02

TRC Budgeting

Colombo

D02

P03

Ground Construction

Galle

D01

Eg: Foreign key...
PK
PK
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