MCQ IN COMPUTER SCIENCE & ENGINEERING

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COMPUTER SCIENCE AND ENGINEERING

SQL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When three or more AND and OR conditions are combined, it is easier to use the SQL keyword(s):
A
LIKE only.
B
IN only.
C
NOT IN only.
D
Both IN and NOT IN.
Explanation: 

Detailed explanation-1: -23. When three or more AND and OR conditions are combined, it is easier to use the SQL keyword(s): LIKE only.

Detailed explanation-2: -Any number of conditions can be connected with ANDs. All the conditions must be true for the row to be included in the result.

Detailed explanation-3: -The SQL AND condition and OR condition can be combined to test for multiple conditions in a SELECT, INSERT, UPDATE, or DELETE statement. When combining these conditions, it is important to use parentheses so that the database knows what order to evaluate each condition.

Detailed explanation-4: -The AND operator allows the existence of multiple conditions in an SQL statement’s WHERE clause.

Detailed explanation-5: -The UNION operator is used to combine the result-set of two or more SELECT statements.

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