Which of the following clause is optional in SQL SELECT Statement?
SELECT
FROM
HAVING
None of the above
Correct Answer :
C. HAVING
HAVING Clause is optional in SQL SELECT Statement.
Related Questions
Number of operands used by Unary Operator is?
1
2
3
4
Which of the following is a SQL Logical Operator?
SQL ALL Operator
SQL OR Operator
SQL LIKE Operator
All of the above
How can we prevent SQL Injection attack?
We should pre-define the input type, input field and length of the user data to validate the input for the user authentication.
Access privileges should be restricted for the users
Administrator accounts should not be used.
All of the above
In CRUD Operator, U is an acronym of
Upper
Unique
Update
Uppercase
Which of the following statement is TRUE about DISTINCT Clause?
It cannot ignore the NULL values
It can ignore the NULL values
Its query can return multiple values
None of the above
Global Temp Variable is used with which sign?
###
####
#
##
When two or more columns are combined to be used to uniquely identify each row in the table, it is known as -
Primary Key
Unique Key
Composite Key
Foreign Key
SQL has the advantage of?
SQL require a lot of programming.
SQL provides High-Speed Query Processing.
SQL follows the standard languages of ANSI and ISO.
SQL is easily portable.
Which of the statement is true?
The precedence-low operators are evaluated last in SQL.
The precedence-high operators are evaluated first in SQL.
Both A and B
None of the above
What is the meaning of Null Values in Systematic Treatment of Null Values in the 12 Codd's Rules?
No value in cell
Inappropriate Information
Unknown data
All of the above
What does COUNT() function returns?
Average value
Largest value
Smallest value
Number of rows
C in CRUD Operator means
To add or insert data
To retrieve or fetch data
To update the data
To delete the data
Command that comes under DCL is/are -
GRANT
REVOKE
Both A. and B.
None of the above
In how many parts are the SQL functions are divided into?
1
2
3
4
Scripts ____ from various workspaces can be imported through import.
Exported
Imported
Changed
Saved
What is the symbol of Concatenation Operator?
|
||
//
\
Select the correct syntax of SELECT TOP clause?
SELECT TOP name
SELECT TOP column
SELECT TOP FROM
SELECT TOP Number
Which clause is needed in CTE SQL syntax?
FOR
AS
WITH
TO
What is the default length of any data type in the CAST function?
10
20
30
40
Full form of DML is
Data Multiplication Language
Data Manipulation Language
Data Modify Language
Data Mapping Language
SQL EXCEPT statement behaves similar to _____operator in mathematics.
Sum
Multiply
Minus
Divide
Which of the following statement is TRUE about DISTINCT Clause?
Returns only Distinct values.
Only on the single column, it operates.
It can be used with the aggregates such as COUNT, AVG, etc.
All of the above
What is TRUE about UNION ALL Operator?
The results of both queries are combined with this operator.
After performing the UNION ALL operation, duplicate rows will not be removed.
Both A and B
None of the above
What does the DROP DATABASE Statement do?
The table, its structure, views, permissions, and triggers will also be deleted or removed with this SQL statement.
In the database management system, this SQL statement deletes the existing database, together with all the database tables and views.
A new database will be created through this SQL statement.
In this SQL statement, the data or records are inserted into an existing database table. One query statement can insert multiple records simultaneously using this statement.
GROUP BY clause is placed before which clause in SQL?
HAVING
WHERE
ORDER BY
FROM
Which command will remove the records from the table, but not affect the structure of the table?
REMOVE
DELETE
DROP
TRUNCATE
Which of the following is/are Scalar function(s)?
UCASE()
MID()
ROUND()
All of the above
What is the work of DROP command?
Using this command, you can remove or erase recorded information from a database table.
Database objects such as tables, table views, and other objects can be deleted using this command.
One or more rows from one or more tables of the database can be accessed with this command. Using the WHERE clause with this command is also possible.
It enables you to create new databases, tables, table views, and other objects using this command.
In order to sort the records according to the columns, which clause is used?
HAVING
GROUP BY
ORDER BY
None of the above
A Key which uniquely identifies each row in the table is known as?
Primary Key
Unique Key
Composite Key
Foreign Key