非唯一类型的列上的非聚集索引是否会增加sql中的可搜索性（性能）

问题描述：

Will a non-clustered index on a column of not unique type will increase searchability(performance) in sql

答

希望这可以回答您的问题。

http://stackoverflow.com/questions/14041481/is-it-good-to-create-a-nonclustered-index-on-a-column-of-type-varchar [ ^ ]

Hope this answers you query.

http://stackoverflow.com/questions/14041481/is-it-good-to-create-a-nonclustered-index-on-a-column-of-type-varchar[^]