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The wildcard in a WHERE clause is useful when?

A. An exact match is necessary in a SELECT statement.

B. An exact match is not possible in a SELECT statement.

C. An exact match is necessary in a CREATE statement.

D. An exact match is not possible in a CREATE statement.

Answer: Option B

Solution (By Examveda Team)

Option A: An exact match is necessary in a SELECT statement. - This option describes when you need to specify a precise condition for selecting data, which is not related to the use of wildcards in SQL.
Option B: An exact match is not possible in a SELECT statement. - This option incorrectly describes the use of wildcards. Wildcards are used in SELECT statements to match patterns rather than exact values.
Option C: An exact match is necessary in a CREATE statement. - The CREATE statement is used to create database objects such as tables, indexes, or views, and does not relate to the use of wildcards.
Option D: An exact match is not possible in a CREATE statement. - This option incorrectly describes the purpose of wildcards in SQL.
Conclusion:
In SQL, wildcards in a WHERE clause are useful when you need to match patterns rather than exact values in a SELECT statement. Therefore, the correct answer is Option B: An exact match is not possible in a SELECT statement.

This Question Belongs to Database >> Introduction To SQL

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Related Questions on Introduction to SQL

The SQL WHERE clause:

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.