Hi, I have a problem about update table in a database. The situation is I have a table named member which store thousand rows of data records about thousand of member for a system. This member table has a field named MemberExpiryDate which used to store each member expired date. I have been asked to update the data records for member with member expired date equals to '2011/05/01'. So, as I count there are 50 of records (which member expired date is '2011/05/01') out of thousand of records in that member table need to be update. So, I write a Java program to update those 50 data records and the program is run without prompt out any error. But I have a question is how can I confirm that those 50 records out of thousand of records are updated completely and how can I confirm that other data except those 50 records are not affected and not updated ? Is it got any function in Java can let me know which record from those 50 records is not update exactly ? Is it got any method can let me know other data records except those 50 records are not affected ?