2.WHAT IS THE SIGNIFICANCE OF CLASS.FORNAME SUN.JDBC.ODBC.JDBCODBCDRIVER DRIVER

I am writting a class that reads the connection parameters from a. And I have searched and searched with no results. Himanshu Bhandari 1 13 By using the service provider mechanism you can instruct the driver manager what to load by a system property. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies.

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This is the result of doing what you said: Email Required, but never shown.

It’s in the MySQL jar file. It will load it and perform its static initialization. A database that contains only a single sun.jdbc.odbc.jdbcodcdriver like this one is usually called a flat-file database. This means that you can write, compile and even distribute an application without any drivers, you only need to use the interfaces provided in the java.

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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. 2.shat am writting a class that reads the connection parameters from a. That said, it will rarely be relevant to use Class.

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If an exception is thrown, your configuration was incorrect. Chaithanya 2 15 I have a little problem with the Class.

If the default constructor is not defined, then we have to invoke the defiend constructor using reflection API.

Note that this way of registering drivers is reasonably old-fashioned – look at the docs for DriverManager for more modern ways of getting at a data source. Driver implementations in that jar. Jon Nice example, but where is com. JdbcOdbcDriverthe Class belongs to the package java.

Other JDBC books are appearing regularly. Now what we require in our JDBC connectivity is to get the driver registered with DriverManager and to obtain connections with it, so this can be achieved simply by getting static block executed and there is no requirement to create object of that class. If, for example, the person compiling the code does not for, let’s say, licensing or intellectual property reasons have access to the class oracle.

10 – JDBC-ODBC Bridge Driver

MyClass or java -classpath. JDBC also provides some additional mechanisms to address this, eg JDBC escapes to provide a common syntax that the driver translates to the specific syntax, and DatabaseMetaData which allows you to discover features, reserved words etc which allow you to create or generate compatible queries.

Then we get connection sun.jdc.odbc.jdbcodbcdriver DriverManager.

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The program above contains the statement: But if we create an instance of a class using new operator, the class name can’t be changed dynamically. Sign up or log in Sign up using Google. Sign up sun.jdbc.odbc.jdbcodbcdrivr Email and Password. You are not doing what you think you are doing above.

This content has been marked as final. Note that if the default constructor is not accessible, then newInstance method will throw an IllegalAccessException.

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I also wanted to display only those names that had email addresses associated with them. There is a nice tutorial explains JDBC connection basics. The reasons drivers sun.jdbc.obdc.jdbcodbcdriver loaded this way, is that it allows you to decouple an application from the driver and database it uses. What is the actual use of Class. I’m new in the forum so i hope you gays can help me resolving a extrange behaviour in java. Since the forName is static, we call clasw.forname using the class name Class.