Due to the lack of a real language to express , the process functions are limited . simultaneously , the subsystems related with the real - time database , such as control system , soft measurement system and flowchart system , need more flexible data process functions , which few real - time database software vendors have provided 同時,在實時數(shù)據(jù)庫系統(tǒng)的外圍,如控制器模塊、軟測量模塊、流程圖模塊等,存在著更高、更靈活的數(shù)據(jù)處理要求,但多數(shù)軟件供應(yīng)商都沒有采用真正的腳本技術(shù)來解決這個問題。