Exam (elaborations)
SER322 QUIZ – JDBC AND XML TEST QUESTIONS AND ANSWERS
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SER322 QUIZ – JDBC AND XML TEST QUESTIONS AND ANSWERS...
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SER322 QUIZ – JDBC AND XML TESTQUESTIONS AND ANSWERS
Which type of driver provides JDBC access via one or more ODBC drivers?
a) Type 1 driver
b) Type 2 driver
c) Type 3 driver
d) Type 4 driver - ANSWER a) Type 1 driver
Which of the following provides the application-to-JDBC Manager connection.
a) JDBC Driver
b) JDBC API
c) JDBC Driver API
d) SQL Server - ANSWER b) JDBC API
Using the following code, identify JDBC coding best practices that have been
violated. Note this code compiles and runs!
import java.sql.*;
public class StudentData {
public static void main(String[] args) {
ResultSet rs = null;
Statement stmt = null;
Connection conn = null;
try {
Class.forName("org.postgresql.Driver");
conn = DriverManager.getConnection(args[2], args[0], rgs[1]);
, stmt = conn.createStatement();
rs = stmt.executeQuery("SELECT * FROM Student WHERE rollno="
'"'+args[3] + "' ");
while (rs.next())
System.out.print(rs.getInt(1) + "\t");
System.out.print(rs.getString(2) + "\t");
System.out.print(rs.getInt(3) + "\t ");
System.out.println(rs.getDate(4));
}
stmt.close();
stmt = null;
rs.close();
rs = null;
}
catch (Exception exc) {
exc.printStackTrace();
}
}
a) The program imports all of the java.sql packages
b) This program does not properly close database resources
c) The program shou - ANSWER h) Answers 1-6 all apply
In JDBC, standard SQL statement shall be used and db specific query shall not
be used unless it is necessary .
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