MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

SQL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of following SQL Wildcard represents a single numeric character in MS Access?
A
*
B
____
C
#
D
&
Explanation: 

Detailed explanation-1: -MySQL Wildcards A wildcard character is used to substitute one or more characters in a string. Wildcard characters are used with the LIKE operator. The LIKE operator is used in a WHERE clause to search for a specified pattern in a column.

Detailed explanation-2: -The underscore represents a single number or a character.

Detailed explanation-3: -The asterisk “*” and the question mark “?” are the two main wildcard characters in Access you need to know. The asterisk represents multiple unknown characters. For example, the criteria “N*” would find all “N” words like “Nebraska, ” “Ned, ” “Not, ” “Never Ever, ” etc.

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