本文探讨了基于数据库管理系统(DBMS)的复杂应用如ERP及财务系统的开发难题。作者指出了不同DBMS提供商间的语法差异、事务处理方式的不同，以及缺乏统一标准所带来的挑战。
I hated an application based on a DBMS, especially, an complicated application such as ERP, financial system, and so forth.
I have studyed DBMS for several years. The application rules are complicated and sophistical more and more with varying from years.
Although the SQL standard have been maked about more than ten years, facing to variant DBMS providers, the programmers still is in
dilemma. The syntax of functions, stored procedures and triggers amid them almost is not same.
The transanctions in different providers are dealt with in different ways. Some providers have supported three kinds of transanction
levels, some supports more than the international standard. In some old DBMS such as MySQL, there is not transanction level, so programmers
have to adopt "LOCK" and "UNLOCK" approach.
Now, our project is too later to finished in original schedule. I was so later too. I must finished my first modifing program before
New Year's day.
I have studyed DBMS for several years. The application rules are complicated and sophistical more and more with varying from years.
Although the SQL standard have been maked about more than ten years, facing to variant DBMS providers, the programmers still is in
dilemma. The syntax of functions, stored procedures and triggers amid them almost is not same.
The transanctions in different providers are dealt with in different ways. Some providers have supported three kinds of transanction
levels, some supports more than the international standard. In some old DBMS such as MySQL, there is not transanction level, so programmers
have to adopt "LOCK" and "UNLOCK" approach.
Now, our project is too later to finished in original schedule. I was so later too. I must finished my first modifing program before
New Year's day.
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