Performance of a insert degrades when populating a column.

Hi,

I am inserting data into a table from a view. Till date data the performance has been good. A new column had been added to the view. When I try to populate data of this new column to the corresponding column in the table, the program runs for very long time. What could be the issue ?

The view fetches the data in a reasonable time.

Thank you in advance.

Thanks,

Krishna