我正在使用温和的附加说明。
Now i always create table using GUI editor like SQLYOG or phpmyadmin. So i just create table with columns and even if i have some tables primaray key in other table , i just make that column with name like
Person ---id--name--age
SUbject------person_id----description
因此,我用德国马克提一下有关外国钥匙的任何内容。
GUI编辑栏中可以选择它的主要天线和自动加油,以便它现在通常运作。
但我想知道,在赫尔辛基,确实需要用适当的 s子来表。 i 意味着需要提及哪一个表格是主要关键,哪些是外国关键
或可自由说明足以说明
只要你的说明是正确的,他就将做些微的工作。
但从数据库设计观点来看,我强烈建议,你至少要制造主要的关键和外国关键制约因素。
如果你创造主要钥匙,你的询问就会更快。 可以通过创建其他指数来提高业绩。
PHPMyAdmin完全能够为你创建主要钥匙,而且所有其他指数类型都载于我的图表。 没有必要用手写你的创作守则。
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