oracle 动态条件
DECLARE v_min_salary NUMBER := 5000; v_max_salary NUMBER := 6000; v_sql VARCHAR2(4000); BEGIN v_sql := 'DELETE FROM employee WHERE (salary >:min_salary AND salary
DECLARE v_min_salary NUMBER := 5000; v_max_salary NUMBER := 6000; v_sql VARCHAR2(4000); BEGIN v_sql := 'DELETE FROM employee WHERE (salary >:min_salary AND salary
