# SYSFILES system table

Describes jar files stored in the database.

Column Name | Type | Length | Nullability | Contents
--- | --- | --- | --- | ---
FILEID | CHAR | 36 | false | unique identifier for the jar file
SCHEMAID | CHAR | 36 | false | ID of the jar file's schema (join with SYSSCHEMAS. SCHEMAID)
FILENAME | VARCHAR | 128 | false | SQL name of the jar file
GENERATIONID | BIGINT |  | false | Generation number for the file. When jar files are replaced, their generation identifiers are changed.

Parent topic: Derby system tables