Get the above error when the execute immediate is called in a loop
Update CustomersPriceGroups set 1AO00=:disc Where cuno=:cuno
Parameters: disc=66 c
check your query for double comma.
insert into TABLE_NAME (COLUMN1, COLUMN2,,COLUMN3) values(1,2,3);
(there is extra comma after COLUMN2).
Update: recently (some people have special talents) i succeed to get same exception with new approach:
update TABLE_NAME set COLUMN1=7, set COLUMN2=8
(second SET is redundant)