11 lines
318 B
SQL
11 lines
318 B
SQL
CREATE TRIGGER trg_requirement_check_species_update
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BEFORE UPDATE ON requirement
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WHEN NEW.req_type='SPECIES'
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BEGIN
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SELECT CASE
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WHEN NEW.req_id IS NULL OR NOT EXISTS (SELECT 1 FROM species WHERE id=NEW.req_id)
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THEN RAISE(ABORT,'requirement.req_id must reference species.id for SPECIES (UPDATE)')
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END;
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END;
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