Quiz Discussion

What is not an advantage of stored procedures?

Course Name: SQL -Structured Query Language

  • 1]

    Greater security

  • 2]

    SQL can be optimized

  • 3]

    Code sharing

  • 4]

    Increased network traffic

Solution
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# Quiz
1
Discuss

Which of the following is a valid SQL type?

  • 1]

    CHARACTER

  • 2]

    NUMERIC

  • 3]

    FLOAT

  • 4]

    All of the above

Solution
2
Discuss

Which of the following is a comparison operator in SQL?

  • 1]

    =

  • 2]

    LIKE

  • 3]

    BETWEEN

  • 4]

    All of the above

Solution
3
Discuss

A report generator is used to

  • 1]

    update files

  • 2]

    print files on paper

  • 3]

    data entry

  • 4]

    delete files

Solution
4
Discuss

Which of the following is correct

  • 1]

    a SQL query automatically eliminates duplicates

  • 2]

    SQL permits attribute names to be repeated in the same relation

  • 3]

    a SQL query will not work if there are no indexes on the relations

  • 4]

    None of these

Solution
5
Discuss

Which of the following is an advantage of view?

  • 1]

    Data security

  • 2]

    Derived columns

  • 3]

    Hiding of complex queries

  • 4]

    All of the above

Solution
6
Discuss

A reason for using an SQL view to hide columns is

  • 1]

    to simplify a result only

  • 2]

    to prevent the display of sensitive data only

  • 3]

    to accomplish both of the above

  • 4]

    None of the above

Solution
7
Discuss

Which one of the following is not true for a view

  • 1]

    View is derived from other tables

  • 2]

    View is a virtual table

  • 3]

    A view definition is permanently stored as part of the database

  • 4]

    View never contains derived columns

Solution
8
Discuss

Count function in SQL returns the number of

  • 1]

    Values

  • 2]

    Distinct values

  • 3]

    Groups

  • 4]

    Columns

Solution
9
Discuss

Views constructed from SQL SELECT statements that conform to the SQL-92 standard may not contain

  • 1]

    GROUP BY

  • 2]

    WHERE

  • 3]

    ORDER BY

  • 4]

    FROM

Solution
10
Discuss

What SQL structure is used to limit column values of a table?

  • 1]

    The LIMIT constraint

  • 2]

    The CHECK constraint

  • 3]

    The VALUE constraint

  • 4]

    None of the above

Solution
# Quiz