There's no supported way to do this. There are different types of updates that may occur on CLOSE such as creation of the Asset History records and then certain changes that will always occur (historyflag, status, statusdate, & changedate on the WORKORDER for example). The status changes may or may not roll down the WO hierarchy (children WOs or tasks) depending on your settings on the WO in question and whether they were CLOSED prior to the WO header being closed.
You would have to review each of the WOs and your organizational settings to determine which things will impact you and then write and execute SQL statements to resolve. Otherwise you'll have issues in the future when you go to close the WOs again. The complexity around the WO life cycle is why we don't provide a supported method for reopening closed WOs.
Join CommunityInvite ColleaguesLearn MoreGet Started on MORE