2012年4月2日 · Both solutions authorize you to keep your recursive "Manager manages Employee" relation in addition to a "manager manages Department" relation that you can …

2020年11月21日 · A recursive relationship would usually be expressed as a foreign key relationship back to the same table. For instance, if you had a file system with folders, then …

2015年6月22日 · You don't want to do recursive loading of the hierarchy, unless you are allowing a user to iteratively drill down/up the tree: Every level of recursion is another trip to the …

2018年5月27日 · You don't need to add anything to the Set of subComments in order for the relationship to be persisted. You can do so if you want but JPA will ignore it. You only need to …

2017年6月8日 · SQL Database Recursive Relationship. Ask Question Asked 7 years, 8 months ago. Modified 2 years, 10 months ...

2018年11月10日 · For example in this recursive relationship is it better to: A.Create a new relationship. INVITE(InviterId,InviteeId,AcceptanceDate,InvitationDate) - in bold the Primary …

2013年11月4日 · In the first example, a cow could be both an owner and owned by. For example, a cow could be owned by another cow in a parent-child relationship. A cow could also be …

2015年11月11日 · A recursive relationship is one in which the same entity participates more than once in the relationship. According the above definitions degree of a recursive relationship …

Rarely, you have a unary (also called recursive) relationship when an entity has a relationship with itself. In the diagram, the only unary relationship is the one with the Employee entity. It should …

Basically, I'm starting with a query builder relationship and adding orWhere conditions to it. In the case of finding all of the child organizations, I use a recursive function to drill down through the …