Hi Mark, I think that wont work:
Scenario: A calf is born from a mother within your flock but from a father outside. The father appears for the first time and you are not able to gather information on his father (or grand-grand father). Therefore his father is NULL. But later you get the information on his father and add it to the animal list: The id of the fathers father is then greater then the id of his grandchild (the calf). I could start the id initially with 100000 to allocate <100000 ids in theses cases, but I am unsure if this is a good way to start. Mark Hamburg schrieb: > One of the questions that I believe was raised but not answered on > this thread was how to make sure that you don't have circular > relationships particularly given that SQLite isn't good at scanning > the tree. If you can control the id's then simply require that the id > of the child be greater than the id's of the parents. > > Mark > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
