Question: Which attribute type is derived from other attributes? Question 2 6 options: Multivalued Attribute Derived Attribute Composite Attribute Simple Attribute Question 2 7 ( 1
Which attribute type is derived from other attributes?
Question options:
Multivalued Attribute
Derived Attribute
Composite Attribute
Simple Attribute
Question point
What kind of constraint limits the values that can be stored in a column?
Question options:
size constraint
values constraint
check constraint
integrity constraint
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What kind of constraint enforces referential integrity between tables?
Question options:
reference constraint
foreign key constraint
both a and b
none of the above
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Which SQL keyword is used to sort the result set?
Question options:
ORDER
ORDER BY
SORT
SORT BY
Question point
To concatenate character strings in a string expression, which operator do you use?
Question options:
Question point
Which symbol is used to represent an entity in an ERD?
Question options:
Diamond
Rectangle
Ellipse
Oval
Question point
In an ERD, a relationship is depicted using which symbol?
Question options:
Oval
Rectangle
Diamond
Triangle
Question point
Which of the following is not a valid column alias name?
Question options:
Total
Total Sales
TotalSales
"Total Sales"
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If you want to filter the result set thats returned by a SELECT statement, you must include which clause?
Question options:
WHERE
FROM
ORDER BY
SELECT
Question point
What does "ordinality" refer to in the context of database design?
Question options:
The range of allowable values for an attribute
The minimum number of instances of one entity that can be associated with each instance of another entity
The number of entities in a database
The order in which data is entered into the database
Question point
Which clause of the SELECT statement names the table that contains the data to be retrieved?
Question options:
WHERE
FROM
ORDER BY
SELECT
Question point
A relationship where each entity instance is related to at most one instance of another entity is known as
Question options:
OnetoMany
OnetoOne
ManytoMany
ManytoOne
Question point
Which type of relationship involves three entities?
Question options:
Quaternary
Ternary
Binary
Unary
Question point
The search condition of a WHERE clause consists of one or more
Question options:
string expressions
Boolean expressions
numeric expressions
none of the above
Question point
When you code a SELECT statement, you must code the four main clauses in the following order
Question options:
SELECT, FROM, ORDER BY WHERE
SELECT, ORDER BY FROM, WHERE
SELECT, WHERE, ORDER BY FROM
SELECT, FROM, WHERE, ORDER BY
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