Derby supports optional
tools, which you can load and unload by using the
SYSCS_UTIL.SYSCS_REGISTER_TOOL system procedure as described in
the Derby Reference Manual.
Using the databaseMetaData optional tool
The databaseMetaData optional tool creates functions and table functions corresponding to most of the methods in the java.sql.DatabaseMetaData interface.
Using the foreignViews optional tool
The foreignViews optional tool creates schemas, table functions, and convenience views for all user tables in a foreign database. This can be useful for bulk-importing foreign data.
Using the luceneSupport optional tool
The luceneSupport plugin is an optional tool that lets you use Apache Lucene to perform full-text indexing and searching of the contents of Derby text columns.
Using the simpleJson optional tool
The simpleJson optional tool creates functions and a user-defined type, which can be used to integrate relational data with data represented in the popular JSON format.
Using the rawDBReader optional tool
The rawDBReader optional tool creates functions and views, which can be used to extract data out of a corrupt or unbootable database into a new, healthy database.