mysql-高手帮忙sql优化（非高手不要进）
mysqlmysql 数据库sql
现在有两张表tb1,tb2
tb1的表结构
id(主键),name
tb2的表结构
id(主键),type(主键),content,note,date
type可选值是：a,b,c,d,e
tb1,tb2是一对多的关系，通过id关联
例如下面的数据
tb1
id name
01 tom
02 jim
tb2
id type content note date
01 a xxx1 xx1 20130102
01 b xxx2 xx2 20130103
01 c xxx3 xx3 20130103
01 d xxx4 xx4 20130103
01 e xxx5 xx5 20130103
02 b xxx4 xx4 20130103
02 e xxx5 xx5 20130103
我现在想抽出这样的数据
id name type1 content1 note1 date1 type2 content2 note2 date2 type3 content3 note3 date3 ...
01 tom a xxx1 xx1 20130102 b xxx2 xx2 20130103 c xxx3 xx3 20130103 ...
02 jim b xxx4 xx4 20130103 ...
写一个执行效率最高的SQL，我用的是MYSQL，
而且不要用到传说中的MYSQL的所谓临时表
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