Hi,
I have set to use a bigger rollback segment call
REI_DATA_LOAD by giving
set transaction use rollback segment rei_data_load.

and I have put a query to get the number of records from the table from which the data is being deleted at background.

I get this err:
ORA-1555: snapshot too old: rollback segment number 5 with name 'RBS4'....too small

But with my setting I am using a bigger RBS while the error shows as a diff one

Can any of you explain.

Badrinath;