9 lines
277 B
SQL
9 lines
277 B
SQL
CREATE TRIGGER enforceImmutableTransfer
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BEFORE UPDATE ON Transfer
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WHEN OLD.amount IS NOT NULL
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AND NOT EXISTS (SELECT * FROM __INTERNAL_TRIGGER_STACK)
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BEGIN
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SELECT RAISE(FAIL, "Transfer cannot be updated, but needs to be replaced to make triggers run");
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END;
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