I am developing an application using 10g Development Suite. I created a form having 2 data blocks in one canvas. The first data block is a master table and the other block is a nested table under the first block. I was able to insert and delete data on these two blocks. But when I want to update the record in nested table block, it's showing an error FRM-40105 Oracle errors - Unable to reserve word for update or delete. The update allowed properties of both master table and nested table are set to YES. Please give me an advice to solve this problem. Your advice is of great help to me.