![]() it tells the engine how to handle conflicts.Ī conflict is when you are trying to add/insert/update something that causes a constraint to fail.Ī constraint is a clear rule you've added to the database.Īn example of a real life constraint is that any human's Age can never be less than Zero. " clause is a conflict handling directive, i.e. The "OR IGNORE" part of the "INSERT OR IGNORE. This may be boring to seasoned users, so consider TLDR warning issued. I've seen now quite a few questions in this thread, so thought it prudent to elaborate on conflict resolution. In some narrowly defined and specific implementations with very particular database schema constructions they made achieve the same result, but that is only by happenstance and sheer luck. One does an UPDATE when a matching conflict is found, the other DELETEs conflicting rows and does an insert, which are entirely different things. because they behave entirely differently. That is, "INSERT or REPLACE" is not and never will be equivalent to any INSERT. INSERT INTO x VALUES (.) ON CONFLICT DO NOTHING īecause one prefers using ON CONFLICT resolution clauses rather than the "or IGNORE" clause, however the ON CONFLICT clause does not (and cannot) equate to the "or REPLACE"/"or ROLLBACK"/"or ABORT"/"or FAIL" clauses. Though I don't really understand why you would do that - it seems rather foolish to me. INSERT or REPLACE INTO x VALUES (.) ON CONFLICT DO NOTHING Īnd indeed the "last seen" conflict resolution method (ON CONFLICT) overrides the prior resolution method (or REPLACE). Which is of course an alternate spelling for ![]() REPLACE INTO x VALUES (.) ON CONFLICT DO NOTHING Yes, you can apparently specify something ludicrous like:
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