Topic: 创建index会加快sort吗?

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1.创建index会加快sort吗? Copy to clipboard
Posted by: dissip
Posted on: 2006-12-25 16:03

如:
select *
from table1
where ...
order by col1

为col1创建index 会加快上述语句吗?(where 里没有col1)

2.Re:创建index会加快sort吗? [Re: dissip] Copy to clipboard
Posted by: why
Posted on: 2006-12-26 19:19

一般會
用個別database system的工具驗證一下吧


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