The SYSTABLES view contains one row for every table, view or alias in the SQL schema, including the tables and views of the SQL catalog.
SELECT table_name, system_table_name, table_schema, table_type, table_owner, column_count, row_length, table_text, long_comment, file_type
FROM QSYS2.SYSTABLES
WHERE table_name = 'USER_INFO' AND table_schema='QSYS2'
TABLE_NAME SYSTEM_TABLE_NAME TABLE_SCHEMA TABLE_TYPE TABLE_OWNER COLUMN_COUNT ROW_LENGTH TABLE_TEXT LONG_COMMENT FILE_TYPE USER_INFO USER_INFO QSYS2 V QSYS 80 6709 DB2 FOR IBM i ... D