OCL查询语言,OCL查询语言介绍在传统的企业应用的开发是以数据集为核心来进行的,数据集中的数据获取和操作都是通过标准的SQL语言来实现的 -OCL query language, OCL query language introduced in the traditional enterprise application development is carried out as the core data set, the data set of data acquisition and