SELECT DISTINCT is used if a user wishes to see duplicate columns in a query.
A. True
B. False
Answer: Option B
Solution (By Examveda Team)
Option B: False - The statement is incorrect. SELECT DISTINCT is used to retrieve unique rows from a query result. It eliminates duplicate rows from the output of a SELECT statement, not columns.Option A: True - This option is incorrect. Using SELECT DISTINCT ensures that duplicate rows are not returned in the result set, rather than duplicate columns.
Conclusion:
The statement "SELECT DISTINCT is used if a user wishes to see duplicate columns in a query" is Option B: False. Therefore, the correct answer is False.
This Question Belongs to Database >> Introduction To SQL
Related Questions on Introduction to SQL
You can add a row using SQL in a database with which of the following?
A. ADD
B. CREATE
C. INSERT
D. MAKE
The command to remove rows from a table 'CUSTOMER' is:
A. REMOVE FROM CUSTOMER ...
B. DROP FROM CUSTOMER ...
C. DELETE FROM CUSTOMER WHERE ...
D. UPDATE FROM CUSTOMER ...
A. limits the column data that are returned.
B. limits the row data are returned.
C. Both A and B are correct.
D. Neither A nor B are correct.
Which of the following is the original purpose of SQL?
A. To specify the syntax and semantics of SQL data definition language
B. To specify the syntax and semantics of SQL manipulation language
C. To define the data structures
D. All of the above
Join The Discussion