extproc_perl allows Oracle stored procedures to be written in Perl. A Perl interpreter is embedded in an Oracle external procedure, and remains persistent for the life of a client session.
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Perl source up to 4 GB in size can now be stored in the database, the configuration file supports per-database settings, prototypes can now be embedded in the Perl source file, and some internal subroutines are now auto-loaded to reduce overhead during interpreter initialization.