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CTS JDBC Interview Questions

Questions Answers Views Company eMail

How to check null value in JDBC?

1 5585

What are statements in JAVA ?

1 4635

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 25306

What will happen when ResultSet is not closed?

1 7110

how many JDBC drivers ?name them?

6 12879

what happens if connection is not closed?

7 25436

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

9 19518

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CTS JDBC Interview Questions

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Un-Answered Questions

What have you done to improve or develop your knowledge / professional qualifications in the last year?

2793

Which of the transistor currents is always the largest? Which is always the smallest? Which two currents are relatively close in magnitude?

1220

Explain under what circumstances are vortex flowmeters the most accurate?

1085

How to make elements invisible?

1165

Can a beginner learn python?

920

What is a method signature java?

1111

Explain the windows in layout set.

1044

How do I connect to pgadmin server?

984

What are the steps you can take if your wordpress file is hacked?define what do next_posts_link() and previous_posts_link() do?

168

What are the advantages of using datalist?

1044

How many partitions are created by default in Apache Spark RDD?

319

Tell me what is difference between clustered and non clustered index?

981

Why is rdd immutable?

329

What port does postgresql listen on?

867

How important is c++?

1034