SQL Guide : Database system tables and system views : System tables : SYS_CARDINAL
  
SYS_CARDINAL
The data in this table is refreshed within every checkpoint, not at another time.
Column name
Data type
Description
REL_ID
INTEGER
The relation identifier as in SYS_TABLES.
CARDIN
INTEGER
The number of rows in the table.
SIZE
INTEGER
The size of the data in the table.
LAST_UPD
TIMESTAMP
The timestamp of the last update in the table.
See also
System tables