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哪些是更好的? Mysql query[引文]条款中所占百分比
原标题:Which is better? Locate or like % in the where clause of a Mysql query [duplicate]
This question already has answers here:
Closed 11 years ago.

Possible Duplicate:
MySQL LIKE vs LOCATE

我需要写一个Mysql的问话,根据一栏的插图选择行。 该栏名为“测试栏”。 我需要选择一栏中任何地方都包含 st流的所有行。 更好利用吗?

Select * from testtable where TestColumn like  %stackoverflow% 

Select * from testtable where Locate( stackoverflow , TestColumn)>0

Which would result in a better perf或mance? Thanks in advance.

最佳回答

百分比高于功能要求。 如果有的话,将使用全文索引。 职能要求并不如此。

问题回答

这实际上是<代码>的问题。 缩略语 LOCATE, 当次指示的位置很重要时,应加以使用。





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