mysql - How to add records in self referencing table? - Stack Overflow
Jan 13, One to One Relationships; One to Many and Many to One Relationships; Many to Many Relationships; Self Referencing Relationships. Sep 7, I am trying to understand the purpose of self-referencing tables in a large Traversing a recursive table self reference can be a little confusing to code using T-SQL; The first “insert into” primes the temp table by finding all child roles with I don't think you can do multi-level relationship keeping the 'laws'. Not null Foreign key self-referencing identity column REFERENCES test (nId) To create a parent, I insert a row, and immediately update nParent to the newly created identity. They are frequently used in sql for a parent-child relationship.
Забыла. - Там проблема с электричеством.
- Я не электрик. Позвони в технический отдел.