Java DB

Apache Derby

Derby Developer's Guide

Derby Getting Started
Derby Reference Manual
Derby Developer's Guide
Derby Performance Tuning
Derby Server and Admin Guide
Derby Tools and Utilities
Derby Developer's Guide
-After installing
-Upgrades
-JDBC applications and Derby basics
-Application development overview
-Derby embedded basics
-Derby JDBC driver
-Derby JDBC database connection URL
-Derby system
-A Derby database
-Connecting to databases
-Working with the database connection URL attributes
-Using in-memory databases
-Working with Derby properties
-Deploying Derby applications
-Deployment issues
-Creating Derby databases for read-only use
-Loading classes from a database
-Derby server-side programming
-Programming database-side JDBC routines
-Programming trigger actions
-Programming Derby-style table functions
-Programming user-defined types
-Controlling Derby application behavior
-The JDBC connection and transaction model
-Result set and cursor mechanisms
-Locking, concurrency, and isolation
-Working with multiple connections to a single database
-Working with multiple threads sharing a single connection
-Working with database threads in an embedded environment
-Working with Derby SQLExceptions in an application
-Using Derby as a J2EE resource manager
-Derby and Security
-Configuring security for your environment
-Working with user authentication
-Users and authorization identifiers
-User authorizations
-Encrypting databases on disk
-Signed jar files
-Notes on the Derby security features
-User authentication and authorization examples
-Running Derby under a security manager
-Developing tools and using Derby with an IDE
-SQL tips
-Localizing Derby
-Derby and standards

 

Information provided in SQL Exceptions

Derby provides the message, SQLState values, and error codes in SQL exceptions.

Use the getSQLState and getMessage methods to view the SQLState and error messages. Use getErrorCode to see the error code. The error code defines the severity of the error and is not unique to each exception.
Note: Severity is not standardized in Derby. Applications should not depend on the severity returned from SQL exceptions.

Applications should also check for and process java.sql.SQLWarnings, which are processed in a similar way. Derby issues an SQLWarning if the create=true attribute is specified and the database already exists.

 

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