MEANING OF CLASS.FORNAME SUN.JDBC.ODBC.JDBCODBCDRIVER DRIVER DOWNLOAD

These drivers are especially useful for applet deployment, since the actual JDBC classes can be written entirely in Java and downloaded by the client on the fly. It loads the class in to memory and return that reference as an instance of Class. It places it in the completion Label , and uses that as the lookup text. This initializer registers a new instance of itself with the DriverManager. Why cant we just import the same class, instead why we are loading it.

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The program above contains the statement: These drivers are especially useful for applet deployment, since the actual JDBC classes can be written entirely in Java and downloaded by the client on the fly.

Other JDBC books are appearing regularly.

sun.jdbc.odbc.JdbcOdbcDriver Connection Example : JDBC ODBC « Database « Java Tutorial

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. When you load a driver literally with Class.

First, open the control panel. It places it in the completion Labeland uses that as the lookup text.

I used Microsoft Query that came with Microsoft Office, but you might prefer something else. Instead, it should hunt for the name given as the command-line argument.

Once the connection is made with DriverManager. This makes it more obvious where the code will fail throw an exception if that class mexning not present in the classpath when that code runs. Since the forName is static, we call it using the class name Class. Krishan 1 7. By default, the Class.

Post as a guest Name. Jon Nice example, but where is com. Driver which contains the name s of the java.

Doesn't answer the question about JDC in any way. Most of the work that Driver class do, exists in its static block. When we want to execute static block of a class, without creating its class.frname then we can use class. Type 1 drivers require some sort of non-Java software to be installed on the machine running your code, and they are sun.jdbc.odbc.jdbcodbcrriver using native code.

I just learned about java. With JDBC, understanding the code is relatively simple.

OracleDriver" it might feel like overkill, but if you keep in mind that it could also be a string pulled from a config file or from user input you might start to understand why it is so powerful.

This approach will give a better performance. A normal JDBC driver must contain a static initializer that registers an instance of the driver implementation with java. It is no different from what presently happens by default as long as the driver complies with JDBC 4. For this query, it looked like this: Now you can press the SQL button and without any research on your part, up will pop the correct SQL code, ready for you to cut and paste.

Importing class you will have extra dependency From The Java Tutorial: But if we create an instance of a class using new operator, the class name can't be changed dynamically.

A database that contains only class.forhame single table like this one is usually called fo flat-file database.

JDBC Drivers (Java Enterprise in a Nutshell)

If any exception araises during resolving of that class, it will throw an ExceptionInInitializerError. In this example, there is no password protection on the database so the user name and password are empty strings.

So we can pass the class name dynamically.