SYSSTATISTICS system table

Describes the schemas within the current database.
Column Name Type Length Nullability Contents
STATID CHAR 36 false unique identifier for the statistic
REFERENCEID CHAR 36 false the conglomerate for which the statistic was created (join with SYSCONGLOMERATES. CONGLOMERATEID)
TABLEID CHAR 36 false the table for which the information is collected
CREATIONTIMESTAMP TIMESTAMP   false time when this statistic was created or updated
TYPE CHAR 1 false type of statistics
VALID BOOLEAN   false whether the statistic is still valid
COLCOUNT INTEGER   false number of columns in the statistic
STATISTICS

org.apache.
derby.catalog.
Statistics:

This class is not part of the public API.
  true statistics information