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CTS JDBC Interview Questions

Questions Answers Views Company eMail

How to check null value in JDBC?

1 5496

What are statements in JAVA ?

1 4546

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 25124

What will happen when ResultSet is not closed?

1 7023

how many JDBC drivers ?name them?

6 12687

what happens if connection is not closed?

7 25185

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

9 19232

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Un-Answered Questions

What is the name of a graffian follicle after it releases an egg, turns into a yellow body, and begins to secrete progesterone?

861

any from electronics proffesional i want to generate 12v automotive voltage regulator in the latest technology plz provide me some technical notes on it.

2073

How to use far pointers?

1979

What is string data type in sql?

1144

How to calculate Gratuity & when it's applicable to employee after three years or Five years?...

1844

What are the components of ms word window?

590

Define web service protocol stack?

666

What is prototype in c++ with example?

1155

What is a pointcut in spring?

411

Why can mitochondria be considered the power plants of the aerobic cells?

1061

Explain why a blockchain needs tokens to operate?

Why trigger is used in sql?

974

You are required to show the effect of each of the following changes on profit and Break-Even-Volume from the information given below: Sales 50,000 units Rs. 5.00 per unit Variable cost Rs. 3.00 per unit Fixed cost Rs. 70,000 Changes: (i) Price changes by 20%. (ii) Volume decreases to 40,000 units. (iii) Variable cost increases to Rs 3.50 per unit. (iv) Fixed cost decreases by 10%.

2329

Explain InputSplit in Hadoop MapReduce?

677

What is a domain authority?

521