摘要
针对审批流程中大对象数据的应用需求,以普元EOS Studio为设计开发平台,以BLOB类型数据为例,采用上传文件类型提供的属性进行大对象数据的赋值和文件大小判断,并通过运算逻辑"expand Lob Property"获取数据库中的大对象数据,同时,运用自定义函数实现图片格式选择和图片预览等功能。该研究详细阐述了其技术实现过程,对其他类型大对象数据在普元平台上的应用提供了借鉴。
According to the demand of large object data application in the approval process,this paper uses the property of the upload file type to provide the assignment and judge the size of large object data,taking Primeton EOS Studio as a design and development platform with BLOB data as examples,through the operation logic ＂ expand Lob Property＂ access to large object data in the database.At the same time,it uses user-defining function to realize the function such as selection and preview of image.The study explains the technical implementation process in details,and provides reference to other types of large object data in Primeton platform application.
出处
《智能计算机与应用》
2015年第1期21-24,28,共5页
Intelligent Computer and Applications
