• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Introduction to SQL

Introduction to SQL
What operator tests column for the absence of data?

None of these
IS NULL operator
NOT operator
EXISTS operator

ANSWER DOWNLOAD EXAMIANS APP

Introduction to SQL
The keyword BETWEEN can be used in a WHERE clause to refer to a range of values.

False
True

ANSWER DOWNLOAD EXAMIANS APP

Introduction to SQL
Table Employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM Employee WHERE SALARY > ANY (SELECT SALARY FROM EMPLOYEE);prints

5
9
10
0

ANSWER DOWNLOAD EXAMIANS APP

Introduction to SQL
Indexes may be created or dropped at any time.

True
False

ANSWER DOWNLOAD EXAMIANS APP

Introduction to SQL
The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries.

True
False

ANSWER DOWNLOAD EXAMIANS APP

Introduction to SQL
'AS' clause is used in SQL for

Selection operation.
Projection operation.
Rename operation.
Join operation.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Introduction to SQL

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑