| Subject | Self-referential constraints |
|---|---|
| Author | Raymond Kennington |
| Post date | 2002-10-08T03:41:27Z |
How to set up a self-referential constraint for
PersonTable(Child INTEGER NOT NULL, Parent INTEGER, Name VARCHAR(20) NOT NULL)
that forces Parent to exist as a Child unless Parent is NULL?
--
Raymond Kennington
Programming Solutions
W2W Team B
PersonTable(Child INTEGER NOT NULL, Parent INTEGER, Name VARCHAR(20) NOT NULL)
that forces Parent to exist as a Child unless Parent is NULL?
--
Raymond Kennington
Programming Solutions
W2W Team B