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SQL -Structured Query Language - SQL Table - Drop Table Quiz

# Quiz
1
Discuss
Drop Table

What is not an advantage of stored procedures?

  • 1]

    Greater security

  • 2]

    SQL can be optimized

  • 3]

    Code sharing

  • 4]

    Increased network traffic

Solution
2
Discuss
Drop Table

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
3
Discuss
Drop Table

Which of the following is an SQL trigger supported by Oracle?

  • 1]

    BEFORE

  • 2]

    AFTER

  • 3]

    INSTEAD OF

  • 4]

    All of the above

Solution
4
Discuss
Drop Table

The SQL ALTER statement can be used to

  • 1]

    Change the table structure

  • 2]

    Change the table data

  • 3]

    Add rows to the table

  • 4]

    Delete rows from the table

Solution
5
Discuss
Drop Table

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
6
Discuss
Drop Table

Which is NOT one of the most common types of SQL CHECK constraints?

  • 1]

    System date

  • 2]

    Range checks

  • 3]

    Lists of values

  • 4]

    Comparing one column value to another within the same table

Solution
7
Discuss
Drop Table

What is an advantage of placing computations in SQL views

  • 1]

    To save users from having to write an expression

  • 2]

    To ensure that the results are consistent

  • 3]

    To accomplish both of the above

  • 4]

    None of the above

Solution
8
Discuss
Drop Table

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
9
Discuss
Drop Table

‘AS’ clause is used in SQL for

  • 1]

    Selection operation

  • 2]

    Rename operation

  • 3]

    Join operation

  • 4]

    Projection operation

Solution
10
Discuss
Drop Table

The language which has recently become the defacto standard for interfacing application programs with relational database system is

  • 1]

    Oracle

  • 2]

    SQL

  • 3]

    DBase

  • 4]

    4GL

Solution
11
Discuss
Drop Table

A report generator is used to

  • 1]

    update files

  • 2]

    print files on paper

  • 3]

    data entry

  • 4]

    delete files

Solution
12
Discuss
Drop Table

Count function in SQL returns the number of

  • 1]

    Values

  • 2]

    Distinct values

  • 3]

    Groups

  • 4]

    Columns

Solution
13
Discuss
Drop Table

The statement in SQL which allows changing the definition of a table is

  • 1]

    Alter

  • 2]

    Update

  • 3]

    Create

  • 4]

    Select

Solution
14
Discuss
Drop Table

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
15
Discuss
Drop Table

Which of the following is a valid SQL type?

  • 1]

    CHARACTER

  • 2]

    NUMERIC

  • 3]

    FLOAT

  • 4]

    All of the above

Solution
16
Discuss
Drop Table

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
17
Discuss
Drop Table

Which of the following is a legal expression in SQL?

  • 1]
    SELECT NULL FROM EMPLOYEE;

     

  • 2]
    SELECT NAME FROM EMPLOYEE;

     

  • 3]
    SELECT NAME FROM EMPLOYEE WHERE SALARY = NULL;

     

  • 4]
    None of the above

     

Solution
18
Discuss
Drop Table

Which of the following is a comparison operator in SQL?

  • 1]

    =

  • 2]

    LIKE

  • 3]

    BETWEEN

  • 4]

    All of the above

Solution
19
Discuss
Drop Table

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
20
Discuss
Drop Table

To delete a particular column in a relation the command used is

  • 1]

    UPDATE

  • 2]

    DROP

  • 3]

    ALTER

  • 4]

    DELETE

Solution
# Quiz
SQL -Structured Query Language

SQL -Structured Query Language

  • Introduction
  • Overview
    • How To Download And Install MySql Workbench
    • SQL Syntax
  • SQL Database
    • Create Database
    • Drop Database
    • Use / Select Database
  • SQL Table
    • Create Table
    • Alter - Rename Table
    • Alter - Add Column
    • Alter - Modify Column
    • Alter - Rename Column
    • Alter - Drop Column
    • Copy Table
    • Drop Table
  • SQL Insert
    • Insert Record
  • Sql Update
    • Update Record
  • Sql Select
    • Select Record
    • Select - Count
    • Select - Average
    • Select - Sum
    • Select - Min Max
    • Select - Distinct
    • Select - Limit
    • Select - First
    • Select - Last
  • Sql Clause
    • Like Clause
    • And Operator
    • Or Operator
    • Between & Not Between Operator
    • As or Alias
    • In Clause
    • Group By Clause
    • Having Clause
  • Sql Order By
    • Ascending
    • Descending
    • Random
    • Ascending Descending Multiple Column
  • SQL Joins
    • Joins and its type
    • Inner Join
    • Left Join
    • Right Join
    • Full Join
    • Cross Join
  • SQL View
    • Create View
    • Update View
    • Delete View
  • SQL Delete
    • Delete Table
    • Truncate Table
  • Sql Key & Constraint
    • Primary Key
    • Foreign Key
    • Unique Key
    • Not Null Constraint
    • Check Constraint
    • Default Constraint
  • Normalization
    • Overview
    • 1 NF
    • 2 NF
    • 3 NF
    • Boyce Codd normal form ( BCNF )

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