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referential integrity without trigger

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Hello everybody,

Assuming I want to empty and refill table A (with roughly the same content, preferrably in one transaction) and don't want to completely empty a dependent table B but still keep referential integrity after the commit.

Without disabling A's on-delete-trigger B will be be emptied on commit, even when I inserted exactly the same data into A that I deleted an instant before. That is because the trigger gets called on commit, no matter if the deleted rows have "reappeared".

If I disable the trigger, My referential integrity is most likely corrupted. Is there a clever, general scheme to "recheck" and enforce foreign key contraints, after the responsible triggers have been disabled and reenabled?

I hope this makes sense to you.

Alexander Presber


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