QUIZ 3
Question 1
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It is a value that is unavailable, unassigned, unknown, or inapplicable.
Select one:
a. Blank
b. NULL
c. Space
d. Zero
Question 2
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This is used to brings together data that is stored in different tables by specifying the link between
them.
Select one:
a. Selection
b. Projection
c. Inclusion
d. Joins
Question 3
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This character is used to override the default precedence or to clarify the statement.
Select one:
a. ||
b. *
c. ( )
d. AS
Question 4
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Which of the following is not true about writing SQL statements?
Select one:
a. Indents should be used to make code more readable.
b. SQL statements are not case sensitive.
c. Clauses are usually placed on separate lines for readability and ease of editing.
d. Keywords cannot be split across lines or abbreviated.
Question 5
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This is use to create expression with number and date values.
Select one:
a. Numerical Values
b. Arithmetic expression
c. Logical Condition
d. MDAS operator
Question 6
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A system used to concatenate one column to another column.
Select one:
a. ( )
b. AS
c. *
d. ||
Question 7
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This is used to selects the rows in a table that are returned by a query. Various criteria can be used
to restrict the rows that are retrieved.
Select one:
a. Selection
b. Projection
c. Joins
d. Inclusion
Question 8
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Supposed that the user uses the ff SELECT statement: what will be the possible output.
SELECT GRADE AS STUDENT MARK FROM GRADE_REPORT;
Select one:
a. Will display all rows and columns.
b. Error because of missing “” mark.
c. Will display the column GRADE rename as STUDENT MARK
d. Error because of the keyword AS.
Question 9
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This is use to Selects the columns in a table that are returned by a query. Selects a few or as many
of the columns as required.
Select one:
a. Joins
b. Inclusion
c. Projection
d. Selection
Question 10
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It is a character, a number, or a date that is included in the SELECT statement.
Select one:
a. Alias
b. Table name
c. Literal
d. String
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