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CTS JDBC Interview Questions

Questions Answers Views Company eMail

How to check null value in JDBC?

1 5055

What are statements in JAVA ?

1 4255

java.lang.ClassNotFoundException:oracle.jdbc.driver.OracleDr iver? I get this error at run time.I used oracle10G. I set CLASS PATH:C:\oraclexe\app\oracle\product\10.2.0 \server\jdbc\lib\ojdbc14.jar; I write JDBC PROGRAM like import java.sql.*; class Example { public static void main(String args[]) { try { Class.forName ("oracle.jdbc.driver.OracleDriver"); System.out.println("Driver Loaded"); Connection con=DriverManager.getConnection ("jdbc:oracle:thin:@localhost:1521:xe","system","salmas"); System.out.println("Driver Connected"); Statement st=con.createStatement(); ResultSet rs=st.executeQuery("select * from emp"); while(rs.next()) { System.out.println(rs.getInt(1)); System.out.println(rs.getString(2)); System.out.println(rs.getString(3)); } st.close(); con.close(); } catch(Exception e) { System.out.println(e); } finally { System.out.println("it's finally block executed"); } } }

6 24336

What will happen when ResultSet is not closed?

1 6711

how many JDBC drivers ?name them?

6 11933

what happens if connection is not closed?

7 24194

How to create Connection interface object because it is Interface , Interface is not instansiated?

9 18194

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Un-Answered Questions

What are perl array functions?

807

What are the commands located in client room?

Respected Consultants kinldy teach me E- recruitments call me at 901 902 1136

1816

I don’t want my class to be inherited by any other class. What should I do?

869

Which are the trigger types that we find in update panel?

746

Which of the following is true regarding IRR? A. IRR assumes reinvestment at the cost of capital. B. IRR is the discount rate when NPV is greater than zero. C. IRR is a constrained optimization method. D. IRR is the discount rate when NPV is equal to zero. ?

958

What do you know about autoencoders?

256

How do you deal with difficult or angry patients? : insurance health

510

Describe your approach to minimizing treatment-related toxicities and adverse effects.

Parenthesis is never required in postfix or prefix expressions, why?

754

What is a temporal join?

821

What does a method signature consist of?

809

What are the challenges and limitations of selenium webdriver?

772

Illustrate the sandals of ancient Egyptian people.

What is dual table oracle?

799