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

 

Setting database-wide properties

Database-wide properties, which affect a single database, are stored within the database itself. This allows different databases within a single Derby system to have different properties and ensures that the properties are correctly retained when a database is moved away from its original system or copied.

You should use database-wide properties wherever possible for ease of deployment and for security.

You set and verify database-wide properties using system procedures within SQL statements.

To set a property, you connect to the database, create a statement, and then use the SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY procedure, passing the name of the property and the value.

To check the current value of a property, you connect to the database, create a statement, and then use the SYSCS_UTIL.SYSCS_GET_DATABASE_PROPERTY function, passing in the name of the property.

If you specify an invalid value, Derby uses the default value for the property. (If you call the SYSCS_UTIL.SYSCS_GET_DATABASE_PROPERTY function, however, it displays the invalid value.)

See the Derby Reference Manual for more information on how to use these system functions and procedures.

 

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