ORA-01555: snapshot too old: rollback segment number 8 with name "_SYSSMU8$" too smal

[Nikee]

Hello Pablo,

Here are the details on the UNDO tablespace...Can you suggest anything by looking at the following details....

TableSpace Size (kb) Free (kb) Used % Free %
--------------- ------------ ------------ ---------- - -----------
PSAPUNDO 19,455,984 19,050,048 2% 98%

Max. Bytes/Minutes Avg. Bytes/Minutes Max Space (Mb) Avg Space (Mb)
------------------ ------------------ -------------- --------------
40,065,434 1,823,907 573 Mb 26 Mb


Thank you,
Nikee