mysql,数据库设计规范

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1、mysql,数据库设计规范　　篇一：MySQL设计规范　　MySQL设计规范　　MYSQL设计规范...........................................................................................................................................................................1　　1.数据库设计.............................................................

2、.................................................................................................................1　　字段.............................................................................................................................................................................

3、.....1　　表和字段命名.......................................................................................................................................................1字段结构.........................................................................................................................

4、.......................................2SQL语句.........................................................................................................................................................................2性能与效率.......................................................................

5、..............................................................................................3　　定长与变长表.......................................................................................................................................................3运算与检索...............................

6、.............................................................................................................................3结构优化与索引优化..........................................................................................................................................4查询优化.............

7、...................................................................................................................................................4兼容性问题和效率查询语句..............................................................................................