Código SQL:
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DELIMITER $$ CREATE TRIGGER inserAsig AFTER INSERT ON envio FOR EACH ROW BEGIN DECLARE ide INT; SET ide = (SELECT id_user FROM categorias AS c WHERE c.id_categoria = NEW.id_categoria ); INSERT INTO asignacion (id_user,id_categoria) VALUES(ide,NEW.id_categoria); END ;
Unknown column 'id_categoria' in 'field list'