Data integrity
You are required to implement integrity constraints within the database to enforce the following requirements:
For lessons:
·
Lesson duration cannot be less
than 30 minutes (half hour).
·
Cost cannot be negative (but it
can be 0).
·
Paid must be either yes or no.
·
Date paid cannot be in the
future.
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For invoice statements:
·
Statement date must be
supplied.
·
Statement date cannot be in the
future.
·
Paid must be either yes or no,
it cannot be null.
·
Statement total must be
supplied.
·
Statement total must be greater
than 0.
·
The payment date must be on or
later than the statement date.
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Information requests
Create queries
manually using SQL view.
1.
List details of students who
are under 18 years of age.
2.
Show details of lessons coming
up in the next 7 days (if any).
3.
Show a list of students and the
total number of lessons they have had. Show
the student ID, family name, given name, and the number of lessons.
4.
Show details of any student who
has had or will be having a piano lesson.
What you need to should submit
·
A Microsoft Access database
Tables with sample data
1.
Relationships
2.
Queries
3.
Report.
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