A cursor is said to be sensitive if its membership—the data rows it returns—can vary from the time it is opened until the time it is closed. An insensitive cursor has its membership fixed when it is opened.
The membership and values of the result set of an insensitive cursor are indeterminate with respect to changes. A value-sensitive cursor is insensitive with respect to its membership and sensitive with respect to the order and values of the result set. SAP Sybase IQ supports insensitive updatable cursors.