1. Databases - Example
A data table (tblDoctors) stores information about doctors working in a surgery
Field
Data type
doctorID
Text
doctorName
doctorGender
Rules:
R1: No two doctors share the same ID
R2: Gender is either M or F
doctorID
doctorName
doctorGender d1
Avery M d2
Grimshaw F

2. Databases - Example Field Data type doctorID Text doctorName
doctorGender
Rules:
R1: No two doctors share the same ID
R2: Gender is either M or F
doctorID
doctorName
doctorGender d1
Avery M d2
Grimshaw F
Name the three fields in the data table
Write down the details of one record that already exists in the database
Identify the primary key used in the data table
Which one of the following records would be valid:
(d5,Bagshaw,don’t know)
(d4,Squirrell,F)
(d2,Who,M)