nonunique

常见例句

Global prefixed indexes can be unique or nonunique.
全局前缀索引（globalprefixedindex）可以是唯一的或非唯一的。
The assignment of pitch target is nonunique,and a ...
基频曲线可以同时兼有表达声调、焦点、新话题、情感等多种功能。
Modifies more than one row and also updates the key of a nonunique clustered index to a nonconstant value.
修改多行并且还将非唯一的聚集索引的键更新为非常量值。
If the nonclustered index is nonunique, the data row locator is combined with the nonclustered index key to produce a unique key value for every row.
如果非聚集索引不是唯一的,数据行定位符将与非聚集索引键组合使用,以便为每一行生成唯一的键值。
For a nonunique index, the rowid is included in the key in sorted order, so nonunique indexes are sorted by the index key and rowid.
在没有索引的情况下，你获取一个值，必须对数据做一个有顺序的扫描。
If the nonclustered index is nonunique, the overhead for the data row locator has already been considered in Step 1.3 And no additional modifications are required.
如果非聚集索引不是唯一的;则已在步骤1.;3中考虑了数据行定位符的开销且不需要进行其他的修改。