Hema

• Aug 23rd, 2006

This is from orqfaq.comimport java.sql.*;class dbAccess { public static void main (String args []) throws SQLException { DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver()); ...

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siva kumar reddy

• Aug 7th, 2006

hi ,Class.forName("srting");when ever execute the above statement first chesks that class is loaded before or not .if not loaded it loads the class.Class.forName("oracle.jdbc.driver.OracleDriver");In this case driver manager loads the all drivers in the class.cheerssivaa

Jayant Dhargawe

• Jun 6th, 2006

Hi,Class is also class in java.lang package, it has a method getName(String arg) which take Driver Class u have supply libery in classpath lib directory. Its search given argrument and loading particular class into JVM. and use further process for getting connection from database.

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In establishing a connection is to have the appropriate driver connect to the DBMS. The following line of code illustrates the general idea:E.g.String url = "jdbc:odbc:Fred";Connection con = DriverManager.getConnection(url, "Fernanda", "J8");

Ramu Kondapalli

• Jul 18th, 2006

First You can lode the driver calssee into your program.This can be achived by the useing of follwing Code.Class.forName("oracle.jdbc.driver.OracleDriver");once the driver is avilable now u can get an...

kk

• Jul 6th, 2005

Connection con=DriverManager.getConnection(url,"Krish","k2");

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vipin

• Jul 10th, 2006

All the application server needs information about the installed webserver's port and name, through these entries it creates a connector and stored. This connector is used to communicate with App server.

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karthik

• Jun 12th, 2006

Plz supraja tell me the coding without having the method Class.forname. send it to my mail id kkk_252003@yahoo.com

Rajesh

• Dec 6th, 2005

You can connect database using DAO(Data Access Object).If u need clear info mail me to: rokkam_rajesh@rediffmail.com

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A) ODBC can be directly used with Java because it uses a C interfaceB) ODBC makes uses of pointers which has been totally removed from JAVAC) ODBC is from Microsoft while JDBC is from java applicationsD) ODBC requires manual installation of the ODBC driver manager and driver on all client machines. While for JDBC driver are written in Java and JDBC code is automatically installable, secure and portable...

Suhas Lonarkar

• Jun 10th, 2006

Because ODBC being a c based interface cannot be directly used with java

palavarapu sravankumar

• Apr 19th, 2006

Iguess answer is A  because it uses a interfaces

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A) A Type 3 driver is a JDBC-Net pure Java driverB) This translates JDBC calls into a database -dependent net protocol.C) Vendors of database middleware products can implement this type of driver into their products to provide interoperability with the greatest number of database servers.D) a,b aboveExplanation: The JDBC calls are translated into a database-independent net protocol.

satheesh kumar. sriramaneni

• May 4th, 2006

C is the answer here.

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Gandharv

• May 1st, 2006

ResultSetMetaData interface is used to find out the types and properties of the column in the ResultSet whereas DatabaseMetaData interface provides comprehensive information about the database as a whole.

ashok

• Mar 21st, 2006

If u want to make ur application as idenpendent of the database tables,thenu can dynamically retreive the information about the database using the DatabaseMetaData and can retrieve information about the tables in the database using the ResultSetMetaData 

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Bhaumik Patel

• Apr 27th, 2006

To do connection pooling in webLogic 9.01. Start the weblogic server.2. Open the weblogic console (url: http://localhost:7001/console) and log on using your username and password.3. In the left side t...

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damu

• Apr 8th, 2006

I ihave learnt the answer in very easy way for the  question what is the need of BatchUpdates? i have lot of doubts regarding j2ee and xml will u pls slove my problems

GVRaju

• Mar 29th, 2006

It will reduce the no. of calls making from front end to backend.usually when we want to insert 3 records to db from frontend, instead of making 3 request calls to db, add all the three request to batch and make only one request, so that all the 3 records will be inserted.

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A) No suitable driver

Raghunath

• Feb 23rd, 2006

When ever an attempt is made to load the invalid driver information compiler time exception arises asValid Driver Information can not be found

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A) 1B) 2C) 1, 2D) Neither of the above

ravikumarzee@gmail.com

 Profile Answers by ravikumarzee@gmail.com Questions by ravikumarzee@gmail.com

• Feb 16th, 2006

Both 1 and 2 are correct. A static block is  written in every Driver class to register the driver, which gets executed when the class is loaded.

kiranreddy_zwx

 Profile Answers by kiranreddy_zwx Questions by kiranreddy_zwx

• Jan 9th, 2006

B

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Naim Kazi

• Feb 14th, 2006

But guys prepared statement has one disadvantage that it holds the data in the database. So when you execute a prepared statement for the first time, it will save the data in the database so that for ...

Anurjay Pradhan

• Nov 22nd, 2005

Prepared Statement is Pre-compiled class , but Statement is not.So in PreparedStatement the execution will be faster.

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The JDBC Driver interface provides vendor-specific implementations of the abstract classes provided by the JDBC API. Each vendors driver must provide implementations of the java.sql.Connection,Statement,PreparedStatement, CallableStatement, ResultSet and Driver.

pavan

• Feb 3rd, 2006

As has been mentioned above, the implementations are provided by the database vendors like for example, the classes12.jar of oracle which has the implementations.

Ravi

• Aug 23rd, 2005

In jdbc connecion is a interface , we are using the methods in that interface but we didnt provide any implementation where is the implementation? 

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Create an instance of a JDBC driver or load JDBC drivers through jdbc.driversRegister a driverSpecify a databaseOpen a database connectionSubmit a queryReceive results

srilatha

• Jan 22nd, 2006

import java.sql.*;class Type1 { public static void main(String[] args)throws Exception {  Connection c=null;  try  {    Driver d=new Driver("sun....

Jayachandran

• Jan 3rd, 2006

Please Can any post the sample code for this set of operations. How do we register ?. Through DirverManager or what else ?

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A) The JDK 1.1 and the Java 2 SDK, Standard Edition (formerly known as the JDK 1.2), contain both the JDBC API and the JDBC-ODBC Bridge.B) The Java 2 SDK, Standard Edition, contains the JDBC 2.0 core API, does not include the JDBC 2.0 Optional Package, which is part of the Java 2 SDK, Enterprise Edition, or which you can download separately.C) The JDK 1.1 and the Java 2 SDK, Standard Edition (formerly...

Mchandra

 Profile Answers by Mchandra Questions by Mchandra

• Jan 22nd, 2006

A is correct

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A) TRANSACTION_READ_UNCOMMITTEDB) TRANSACTION_READ_ COMMITTEDC) TRANSACTION_SERIALIZABLED) TRANSACTION_REPEATABLE_READ.Explanation: A Dirty read allows a row changed by one transaction to be read by another transaction before any change in the row has been committed.

Sunanda

• Jan 20th, 2006

B) TRANSACTION_READ_ COMMITTED

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Saritha

• Jan 19th, 2006

Type 4 driver is pure java JDBC driver. every database has its own driver classes which are usually distributed through jar files.There is not specific installation for these drivers. If you want...

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A) Create a CallableStatement object.B) A CallableStatement object contains a call to a stored procedure.C) The execution call should be like CallableStatement cs = con.prepareCall("{call SHOW_SUPPLIERS}");D) We need not make an instance of the Connection class before making a Callable statement.Explanation: The callable statement is prepared based on the connection object only check option c, where...

krudupa9

 Profile Answers by krudupa9 Questions by krudupa9

• Dec 30th, 2005

Answer is DWe have to make a connection object as we call the method prepareCall() of connection object.

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A) TrueB) FalseExplanation: The JDBC 2.0 API is the latest update of the JDBC API. It contains many new features, including scrollable result sets and the new SQL:1999 (formerly SQL 3) data types.

rmaghi@yahoo.com

 Profile Answers by rmaghi@yahoo.com Questions by rmaghi@yahoo.com

• Dec 13th, 2005

A. True

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