Let's see this.

The problem is to do an information publishing function, but the information under each category is not unified, such as all have the basic elements: title, release time, body. And some categories under the information may be one to four fields, some also with the text pictures, and some also document content, that is, from the table structure to the HTML form may not be the same, ask how to design a good

One: Make only one table, all possible fields are considered
Second: Make a table that contains only basic fields, and other extra fields with the associated
Three: I haven't thought about it yet.


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