How do you know in your Java program that a SQL warning is generated as a result of executing a SQL statement in the database?

  1. O (a) You must catch the checked SQLException which is thrown by the method which executes

  2. O (b) You must catch the unchecked SQLWarningException which is thrown by the method

  3. O (c) You must invoke the getWarnings() method on the Statement object (or a sub interface

  4. O (d) You must query the ResultSet object about possible warnings generated by the database


Correct Option: C
Explanation:

To know in your Java program that a SQL warning is generated as a result of executing a SQL statement in the database, you must invoke the getWarnings() method on the Statement object (or a sub interface). Therefore, option C is the correct answer.

Option A is incorrect because SQLException is thrown when an SQL error occurs, not a warning. It is a checked exception and must be caught or declared to be thrown.

Option B is incorrect because SQLWarningException is not a valid exception class in Java. SQLWarning is the class that represents a warning issued by the database.

Option D is incorrect because ResultSet object is used to retrieve data from the database after executing a query, not to retrieve warnings.

Therefore, the correct answer is:

The Answer is: C. O (c) You must invoke the getWarnings() method on the Statement object (or a sub interface).

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