?? rules.html
字號:
<html>
<head>
<title>Rules for Tables in the School Database</title>
<body bgcolor="#FFFFEE">
<h1>Business Rules</h1>
<pre>
Advisors
AdvGradeLevel
Required
Rule
IN ('Freshman', 'Sophomore', 'Junior', 'Senior')
Text
Grade level must be Freshman, Sophomore, Junior, or Senior
Courses
CourseDesc
Required
Faculty
FacFirst
Required
FacLast
Required
Instructors
n/a
Students
StFirst
Required
StLast
Required
Table
Rule
IIf(
(
(Not IsNull(StAddress)) Or
(Not IsNull(StCity)) Or
(Not IsNull(StState)) Or
(Not IsNull(StZIP))
),
(
(Not IsNull(StAddress)) And
(Not IsNull(StCity)) And
(Not IsNull(StState)) And
(Not IsNull(StZIP))
),
True
)
Text
If provided, the address must be complete.
Note: Because you can enter only a single expression, this must be
constructed using IIf statements.
</pre>
</body>
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