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Exam 1z0-819 topic 1 question 198 discussion

Actual exam question from Oracle's 1z0-819
Question #: 198
Topic #: 1
[All 1z0-819 Questions]

Examine:

Class.forName(JDBC_DRIVER_CLASS_NAME);

When is it necessary to execute this statement?

  • A. It must be executed once and only before the first call to DriverManager to get a Connection using the named JDBC driver.
  • B. It is no longer required to execute this method.
  • C. It must be executed before each call to DriverManager to get a Connection using the named JDBC driver.
  • D. It must be executed once and before accessing the named JDBC driver in any way.
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Suggested Answer: B 🗳️
by d7bb0b2 at Jan. 10, 2024, 1:52 a.m.

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ASPushkin
3 months, 1 week ago
Selected Answer: B
it is necessary to execute this statement (Class.forName(...)) at least once before the first call to DriverManager prior to JDBC 4.0 and Java 1.6. And it could be executed MORE then once
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d7bb0b2
1 year ago
Selected Answer: B
However, since JDBC 4.0 (which is included in Java 6 and later), JDBC drivers are automatically discovered and registered by scanning for service providers on the classpath. This means that you no longer need to manually load the driver class with Class.forName() as long as the driver's JAR file is on the classpath.
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