On Thu, Feb 16, 2023 at 9:46 AM Adrian Klaver <adrian.kla...@aklaver.com> wrote:
> On 2/16/23 05:23, Dominique Devienne wrote: > > Hi. This is a bit unusual. We have a foreign key between two tables, > > with ON DELETE CASCADE, to preserve referential integrity. But we > > apparently also need to preserve the severed reference (by natural key, > > i.e. its name), to later on reconnect the two entities after-the-fact, > > should the parent row re-appear later on (in the same transaction or not > > it still unclear). > > This is going to need a more detailed description of the relationship > between the two tables: > > 1) The actual FK relationship. > > 2) What "...preserve the severed reference (by natural key, i.e. its > name)" means? > > 3) What information will be used to reconnect the child rows to the > parent rows? > > Maybe the OP should be using ON DELETE SET NULL instead of CASCADE? David J.
