JPA is a specification for persistence in Java EE and SE applications. As with all specifications they still require vendors or open source projects to implement them. TopLink Essentials is the first compliant JPA implementation providing the persistence functionality to the EJB 3.0 reference implementation. Oracle TopLink is Oracle's commercial implementationcurrently providing preview functionality of JPA.

The Enterprise JavaBeans (EJB) 3.0 specification includes an additional persistence specification called the Java Persistence API (JPA). It is an API for creating, removing and querying across lightweight Java objects and can be used both within a compliant EJB 3.0 Container and a standard Java SE 5 environment. See similar questions...

JDBC (Java DataBase Connectivity) technology is an API that provides cross-database connectivity to a wide range of SQL databases and access to other tabular data sources, such as spreadsheets or flat files. With a JDBC technology-enabled driver, you can connect all corporate data even in a heterogeneous environment. Today all major databases provide JDBC drivers for access. See similar questions...

Speed - We had an app that used the ODBC bridge to write data to an Access database. When we switched it over to use Jackcess, it was 5 times faster. See similar questions...

contains information about JDBC and allows you to download the JDBC 1.22 and JDBC 2.0 specifications. In addition, the following Web pages provide some useful information about JDBC: See similar questions...

Method 1: Set the Java property sql.drivers using the Java -D option. The sql.drivers property is defined as a colon-separated list of driver class names. For example: intersolv.jdbc.sequelink.SequeLinkDriver: The sql.drivers property can be set like other Java properties, using the -D option. For example: java -Dsql.drivers=intersolv.jdbc.sequelink. Method 2: Set the Java property sql.drivers from within your Java application or applet. See similar questions...

You need to add "setenv EPC_DISABLED TRUE" to your Oracle startup script or profile. This is a problem in the server. How can I see all my tables? SQL> select table_name from tabs; or SQL> select table_name from user_tables; (tabs is actually a public synonym for user_tables). See similar questions...

I have used Weblogic's type 2 JDBC driver (formerly known as FastForward) on two big projects. Oracle's type 4 JDBC driver was crashing against a big query...and type 2 couldn't be used with M$ VM. Weblogic bundles these drivers with Tengah but you can ask them just for the JDBC drivers.... I had used Openlink's type 3 JDBC drivers too (about 2.5+ years ago) but I didn't like them much. PS: Check out these links for more info: See similar questions...

A piece of native C-code that translates a JDBC call to an ODBC call. Use this driver for development, not for industrial-strength application environments. Note that you have to have an ODBC database driver manager + an ODBC database driver installed on the server in addition to the JDBC/ODBC bridge. A piece of native C-code that translates a java JDBC call to a native database call level API. Use this driver for development and deployment. See similar questions...

The DataSource class was introduced in the JDBC 2.0 Optional Package as an easier, more generic means of obtaining a Connection. The actual driver providing services is defined to the DataSource outside the application (Of course, a production quality app can and should provide this information outside the app anyway, usually with properties files or ResourceBundles ). The documentation expresses the view that DataSource will replace the common DriverManager method. See similar questions...

Quality of components, construction and optics. While all models are based on the same technology, each type of microscope employs different construction, size, optical quality, magnification power and method of use. Since the end test results should be basically identical with all models, selection becomes a matter of preference. Additionally, overall quality of components generally tend to correlate with ease of use and successful results. See similar questions...

If your autoCommit flag (managed by the Connection.setAutoCommit() method) is false, you are required to call the commit() method - and vice versa. The default is setting to AutoCommit flag is True. Use the setFetchSize() method of Statement to indicate the size of each database fetch. Statement stmt = con.createStatement(); stmt.setFetchSize(100); ResultSet rs = stmt.executeQuery("select * from customers"); You can also control the direction in which the rows are processed. For instance: stmt. See similar questions...

The JDBC adaptor was designed to allow use with any JDBC driver (hence any database that has a JDBC driver). However, the adaptor has to be certified with the JDBC driver as there can be some minor differences between drivers especially when it comes to the SQL they support and the metadata information they provide. We have certified the adaptor for Oracle, Sybase, JDataStore, MS SQLServer, Interbase and DB2 UDB. See similar questions...

No, the JDBC drivers are not included with VisiBroker. You will need to get your JDBC drivers from your database vendor. To get you started quickly, the Visibroker CD includes a development license for JDataStore. See similar questions...

The Grails DomainBinder does not use the annotations, so you have to put the Domain class in the src/groovy folder (instead of grails-app/domain). import javax.persistence.*; @Entity class Book { @Id @GeneratedValue(strategy = GenerationType. See similar questions...

of AppFuse 2.0 M5+, it's as easy as changing your changing the <dao.framework> property in your root pom.xml to ibatis or jpa (jpa-hibernate in 2.0 M5). For further instructions, please see the JPA and iBATIS tutorials. See similar questions...

The JDBC 3.0 API is the latest update of the JDBC API. It contains many features, including scrollable result sets and the SQL:1999 data types. See similar questions...

See the JDBC technology home page for links to information about JDBC technology. This page links to information about features and benefits, a list of new features, a section on getting started, online tutorials, a section on driver requirements, and other information in addition to the specifications and javadoc documentation. See similar questions...

Rajkumar Seth offers the following: static void ftdsjdbc () { try { // use your hostname and port number here String url = "jdbc:freetds:sqlserver://nt1:1433/master"; String login = "sa"; // use your login here String password = "secret"; // use your password here if (false) { //Sybase url = "jdbc:freetds:sybase://unix1:4100/master"; login = "sa"; // use your login here password = "secret"; // use your password here } Class.forName("com.internetcds.jdbc.tds. See similar questions...

All databases supported by SequeLink 4.0, or higher, can be accessed through the SequeLink JDBC Driver. These include: The SequeLink JDBC Driver and SSL classes are packaged in the JAR files slje.jar and crysec.jar, which are located in the directory <installdir>/driver/classes. Copy these JAR files to your Web server and make sure that the JAR files are specified correctly in your HTML code using the codebase and archive tags in the applet tag. See similar questions...