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Author Question: Analyze the following code: ResultSet resultSet = statement.executeQuery("select firstName, mi, ... (Read 118 times)

justinmsk

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Question 1

Which of the following statements are true?
◦ You may create multiple statements from one connection.
◦ You can send queries and update statements through a Statement object.
◦ You may create multiple connections to a database.
◦ You may load multiple JDBC drivers in a program.

Question 2

Analyze the following code:

ResultSet resultSet = statement.executeQuery
("select firstName, mi, lastName from Student where lastName "
+ " = 'Smith'");
System.out.println(resultSet.getString(1));

◦ If the SQL SELECT statement returns no result, resultSet is null.
◦ resultSet.getString(1) returns the firstName field in the result set.
◦ resultSet.getString(1) returns the mi field in the result set.
◦ The program will have a runtime error, because the cursor in resultSet does not point to a row. You must use resultSet.next() to move the cursor to the first row in the result set. Subsequently, resultSet.next() moves the cursor to the next row in the result set.


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Marked as best answer by justinmsk on May 6, 2020

momtoalll

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justinmsk

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Reply 2 on: May 6, 2020
Thanks for the timely response, appreciate it


bigsis44

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Reply 3 on: Yesterday
Excellent

 

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