问题描述
我有一个用php写的评论脚本。它保存在一个mysql注释表中包含commentid，subjectid，userid和timecreated字段的注释。
现在我想实现一个回复函数。我应该使用userid，时间创建，回复和一个commentid字段创建一个新的回复表。
I have got a comment script written in php working pretty well. It saves the comments in a a mysql comments table with fields for commentid, subjectid, userid and timecreated.I now want to implement a reply function. Should I create a new table of replies with userid, time created, reply and a commentid field.
或者更好的方法是将回复包含在注释表中评论，但有两个额外的字段，一个表示此特定评论是回复，另一个表示它是回复的评论。
Or would it be better to just include the replies in the comments table as comments but with two extra fields, one denoting that this particular comment is a reply and the other the comment it is a reply to.
倾向于第一个选项，
感谢那些有经验的人的任何建议！我会为 referenceid 添加两列，并且
Would appreciate any suggestions from those with experience! Thx.
推荐答案
code> parentid 。这样，你可以有嵌套的注释，如果你这样选择。比在查询中加入多个表格更简单，更高效。如果注释不是回复， referenceid 为0（或null）。无需创建另一列来标记是否为回复。
I would add two columns for referenceid, and parentid. That way, you can have nested comments, if you so choose. Much easier and more efficient than joining multiple tables in your queries. If the comment is not a reply, referenceid is 0 (or null). No need to create another column to flag whether it's a reply.
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