JDBC 3.0 COMPLIANT DRIVER

A transaction with a savepoint is atomic in the sense that it appears to be a single unit outside the context of the transaction, but code operating within the transaction can preserve partial states. Do not, however, try to mix usage of the standard model and Oracle model within a single application for either of these features. Reuse of prepared statements by connection pools. Wrapper pattern is a common coding pattern used in Java applications to provide extensions beyond the traditional JDBC API that are specific to a data source. By using this site, you agree to the Terms of Use and Privacy Policy. The Oracle server-side internal driver does not support the retrieval of auto-generated keys feature.

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OracleConnection Result set holdability java. Throws SQLException if self is a named savepoint. There is typically very little one can do to recover from such an error, apart from logging it with as much detail as possible.

Microsoft JDBC Driver for SQL Server Support Matrix

Hdbc errors are a result of the correct operation of the system and will always occur. Result set holdability is a new feature introduced in JDBC 3.

The auto-generated keys are returned as a ResultSet object. JDBC connections support creating and executing statements. If you do not specify a name, then the savepoint is assigned an integer ID. Note that Connections, Statements, and ResultSets compliat tie up operating system resources such as sockets or file descriptors.

Java Database Connectivity – Wikipedia

You roll back to a savepoint using Connection. It will always begin with the “jdbc: Connection pooling essentially involves keeping a cache of database connection objects open and making them available for immediate use by any application that requests a connection. Listing 2 shows how to update the contents of a CLOB column.

Commercial and free drivers provide connectivity to most relational-database servers.

Using these types of columns in a query typically provides the fastest way to access a row, because the pseudo-columns usually represent the physical disk address of the data. Savepoints are supported for local transactions only.

In this case, the application can roll back to the savepoint the bookmark and commit the group of inserts as if the updates had never been attempted see the Jxbc 1. Compliaant, the pooling features are transparently used by the JDBC infrastructure. A savepoint is either named or unnamed.

Java Database Connectivity

Oracle Database 11 g Release 1 See “Retrieval of Auto-Generated Keys”. The Oracle server-side internal driver does not support the retrieval of auto-generated keys feature.

If key columns are not explicitly indicated, then Oracle JDBC drivers cannot identify which columns need to be retrieved. Table lists the interfaces and classes added or extended to support specific JDBC features. Views Read Edit View history. See “Result Set Holdability”. Update batching Jdbf size or row prefetching In each case, you have the option of using the standard model or the Oracle model. There was no ticker tape parade to accompany the release of the JDBC 3.

New exceptions have been added to represent transient and permanent errors and the different categories of these errors. See “Result Set Holdability”. OracleSavepoint Savepoints connection extensions java. Statement If key columns are not explicitly indicated, then Oracle JDBC drivers cannot identify which columns need to be retrieved.

There are other JDBC 3. Support for standard features, such as result set jdc and update batching. The following performance enhancements are available under JDBC 2.