GV$ROLLSTAT definition in Oracle Database 10.2 / www.oracledba.ru
GV$ROLLSTAT
select
inst_id, -- INST_ID NUMBER
kturdusn, -- USN NUMBER
kturdlat, -- LATCH NUMBER
kturdext, -- EXTENTS NUMBER
kturdsiz, -- RSSIZE NUMBER
kturdwrt, -- WRITES NUMBER
kturdnax, -- XACTS NUMBER
kturdget, -- GETS NUMBER
kturdwat, -- WAITS NUMBER
decode -- OPTSIZE NUMBER
(kturdopt, -1, to_number (null), kturdopt),
kturdhwm, -- HWMSIZE NUMBER
kturdnsh, -- SHRINKS NUMBER
kturdnwp, -- WRAPS NUMBER
kturdnex, -- EXTENDS NUMBER
kturdash, -- AVESHRINK NUMBER
kturdaae, -- AVEACTIVE NUMBER
decode -- STATUS VARCHAR2(15)
(bitand (kturdflg, 127), 0, 'ONLINE', 2, 'PENDING OFFLINE', 3, 'OFFLINE', 4, 'FULL', 'UNKNOWN'),
kturdcex, -- CUREXT NUMBER
kturdcbk -- CURBLK NUMBER
from
x$kturd
where
kturdsiz != 0 and bitand (kturdflg, 127) != 3