Tag: qn9

Questions Related to qn9

execute scalar method of command object return variable datatype
qn9

  1. String

  2. Int

  3. bool

  4. Object

Show answer
Correct Option: D
Explanation:

The ExecuteScalar method of a command object returns a single value from the first row of the result set returned by the query. The data type of the returned value depends on the type of the column being retrieved.

In this case, the options provided are:

A. String: This option is incorrect because the ExecuteScalar method does not always return a string. It can return values of different data types, depending on the column being retrieved.

B. Int: This option is incorrect because, similar to option A, the ExecuteScalar method does not always return an integer. It can return values of different data types.

C. bool: This option is incorrect for the same reasons mentioned above. The ExecuteScalar method can return values of different data types, not just boolean values.

D. Object: This option is correct. The ExecuteScalar method returns the value as an Object data type. This allows for flexibility in handling different data types returned by the query.

Therefore, the correct answer is D.