发信人: Assailant (反恐精英 勇救人質 精炸拆彈), 信区: Database
标 题: Re: A simple DB design question
发信站: BBS 未名空间站 (Sat Jun 23 03:13:03 2007)
don't really understand your question/requirement. for example, any
but I'll try to answer
I think the logical deisgn would be to build a new table, and only store the
daily recoomendation list, with forigen key referrance to the main table.
if performance is an issue, I would actually copy the full contents of the
fields to the recommendation table
and do you need to keep track of the history of the "recommended"?
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