Documents are one datum typically shoe-horned into rows and columns; irregular data is a mismatch for RDBMSs, as well.

文档是一种通常按行和列填充的数据，不规则的数据也不适合于 RDBMS。

youdao

I have not experimented with words having irregular plurals; words like datum and data might trip up Rails.

我没有使用不规则复数单词的经验；datum 和 data 等单词可能会令 Rails 出现问题。

youdao

The final ERD (entity relationship model diagram) and system datum dictionary are given through data sheets normalization during logic design and physical design.

在逻辑设计与物理设计过程中通过数据规范化后得出最终的ER模型图并给出系统数据字典。

youdao