There's a further problem with databases: all database records are of a single, predefined type, and all instances of a record type are grouped together.

数据库还存在更多的问题，所有数据库记录有单一的预定义的类型，一种记录类型的所有实例被组织在一起。

youdao

It depends on predefined symbol and type definitions and is not easily modified or extended.

它依赖于预定义的符号和类型定义，并且不容易进行修改或扩展。

youdao

When the document of a particular type is uploaded, all these predefined parameters come into effect.

当上传特定类型的文档时，所有这些预定义的参数都将生效。

youdao

That can be a chore, even though both products try to make it easier with predefined templates for each type of data.

WSJ: Gathering Vitals Of Your So-Called Scattered Life