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How To Write Your Own Database Driver


The four types are: Type 1: JDBC-ODBC (Open Database Connectivity) BridgeType 2: Native-API, partly Java driverType 3: Network-protocol, all-Java driverType 4: Native-protocol, all-Java driverAll JDBC drivers implement the four important JDBC On Windows the -I parameter doesn't accept spaces in filenames, so use the 8.3 name instead; for example, use C:\progra~1\mysql instead of C:\Program Files\mysql. The method returns an int indicating the number of records affected. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Drivers are referred to in many contexts by a keyword name such as :mysql. get redirected here

The port specifies the MySQL server's TCP port number; db-user/password is an authorized MySQL user. In our example, "localhost" (with special IP address of is the hostname for local loop-back; "3306" is the server's TCP port number, and ebookshop is the database name. I want to create my own database system. QSqlDatabase relies on the driver plugin to provide interfaces for QSqlDriver and QSqlResult.

Custom Jdbc Driver

Class diagrams for Connection and Statement classes. Therefore, the Driver client classes manage the internal RMI communications with the middle tier.The driver's server tier, an RMI server, uses the JDBC-ODBC Bridge—a type 1 driver—to finally communicate with the Install MySQL (read "How to Set Up MySQL and Get Started").

Again, this is because the wheels have been invented. Please use Firebird or the free edition of InterBase. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Type 4 Jdbc Driver Example The objective of the question might have been to check if the candidate knows if this is possible, rather than to have the candidate write a JDBC driver.

Browse other questions tagged java jdbc or ask your own question. Jdbc Type 3 Driver Example Program Why are fuel tanks in the wings filled first, and why are they used last? White Fisher, et al., "JDBC API Tutorial and Reference", 3rd eds, Addison Wesley, 2003. http://stackoverflow.com/questions/16027641/custom-jdbc-driver You need to define what you want to do first, and then search for a book.

Note for Linux users: Get the Open Client RPM from http://linux.sybase.com. Create Your Own Type 3 Jdbc Driver They made a 4GL/DBMS product called AMPS of the same sort of architecture as MUMPS - a hierarchical database with integrated 4GL (a whole genre of such systems came out during share|improve this answer answered Nov 25 '11 at 12:16 jgauffin 3,8071431 add a comment| up vote 3 down vote I need to learn how databases work Learn relational algebra. It's an incremental process, the more you play around with it the easier it'll be to understand what the code does.

Jdbc Type 3 Driver Example Program

Look at the sections that follow for additional information about required libraries. https://coderanch.com/t/465703/databases/driver Polynomial equal to polynomial of lower degree What is the silver strip behind crystal in the PCB? Custom Jdbc Driver Your boss (or interviewer) isn't likely to come in and say "Hey, we need you to recreate the MySQL JDBC driver on your own!". [OCA 8 Book] [OCP 8 Book] [Blog] Create Your Own Type 4 Jdbc Driver After connecting to the Oracle server, the plugin will auto-detect the database version and enable features accordingly.

Note: This database plugin is not officially supported for Windows CE. You need to make sure your driver is well-tested first. codeape=> Select; abc | def -----+----- | | (2 rows) codeape=> An ODBC driver that speaks the Postgresql protocol should work as well (but I have not tried it yet). Your driver needs to extend the IDriverTestExtensions protocol to define how to create and destroy databases, and add data to them. Custom Jdbc Driver Example

Run configure -help to see what drivers can be built. And then, finally, start working on your database. Default implementations for many methods in IDriver live in metabase.driver/IDriverDefaultsMixin. useful reference Give it a few days and then review where you've got.

Note: Including "-o Makefile" as an argument to qmake to tell it where to build the makefile can cause the plugin to be built in release mode only. Jdbc Type 2 Driver Example Program Note that FreeTDS is not yet stable, so some functionality may not work as expected. up vote 1 down vote Create a text file java.sql.Driverwith one line in it - fully qualified name of your driver.

You can check your JDK version via command "javac -version".

Patch releases are therefore both backward and forward compatible. The SQLite source is only about 1.3MB compressed, and it's a fully ACID-compliant transactional database. Of course, if you're trying to fetch data from an exotic source, writing your own driver is required. Jdbc Implementation In Java The function call remoteDriver.getConnection() is a remote call to the JDBC driver's middle tier.

ODBC support can be used as a fallback for compliant databases if no native drivers are available. Unless, as I said, you happen to have written your own database that no one has written a driver for. [OCA 8 Book] [OCP 8 Book] [Blog] * SCJP (1.4, 1.6) If you're going to recreate a driver you're going to consult an existing project (or create a project of your own) so that dozens (perhaps hundreds) of developers can contribute. If such resources are not available, then I guess something about how to create a client would at least be a step in the right direction.

MySQL 5.5 Reference Manual @ http://dev.mysql.com/doc/refman/5.5/en/index.html. If you take your pleasure in the process, don't be worry about the objective, you already won. It must return a PEAR_Error object in case of failure.

object count ( void ) count() must return the total number or records found in the Creating a driver from scratch is even more difficult and will likely have ongoing (and higher than expected) maintenance costs.