Hi!

I've got the same error, but in a specific situation as follows:

I had a cursor to a table which I was planning to change a column during the cursor execution. My ALTER TABLE statement was placed some lines after the OPEN CURSOR statement, between the FETCHs and the OPEN CURSOR. Moving the alter table statement to be executed before the OPEN CURSOR solved this problem, but I didn't find a way to change the table during its cursor execution...