The wildcard in a WHERE clause is useful when?1.0 MarksAn exact match is necessary in a SELECT statement.An exact match is not possible in a SELECT statement.An exact match is necessary in a CREATE statement.An exact match is not possible in a CREATE statement.
Question
The wildcard in a WHERE clause is useful when?1.0 MarksAn exact match is necessary in a SELECT statement.An exact match is not possible in a SELECT statement.An exact match is necessary in a CREATE statement.An exact match is not possible in a CREATE statement.
Solution
The wildcard in a WHERE clause is useful when an exact match is not possible in a SELECT statement.
Here's why:
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In SQL, a wildcard character is used to substitute any other character(s) in a string.
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The WHERE clause is used in a SELECT statement to filter records and fetch only those that fulfill specified conditions.
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When you're not sure of the exact value that you want to match in a SELECT statement, you can use a wildcard in the WHERE clause.
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For example, if you want to find all employees whose names start with 'A' but you don't know the exact names, you can use a wildcard like this: SELECT * FROM Employees WHERE Name LIKE 'A%'.
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Therefore, a wildcard is useful when an exact match is not possible in a SELECT statement.
Note: The CREATE statement is used to create a database or table, not to fetch records, so the options involving CREATE statement are not correct.
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