nonunique

常見例句

• Global prefixed indexes can be unique or nonunique.
  全局前綴索引（globalprefixedindex）可以是唯一的或非唯一的。
• The assignment of pitch target is nonunique,and a ...
  基頻曲線可以同時兼有表達聲調(diào)、焦點、新話題、情感等多種功能。
• Modifies more than one row and also updates the key of a nonunique clustered index to a nonconstant value.
  修改多行并且還將非唯一的聚集索引的鍵更新為非常量值。
• 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,數(shù)據(jù)行定位符將與非聚集索引鍵組合使用,以便為每一行生成唯一的鍵值。
• 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.
  在沒有索引的情況下，你獲取一個值，必須對數(shù)據(jù)做一個有順序的掃描。
• 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;則已在步驟1.;3中考慮了數(shù)據(jù)行定位符的開銷且不需要進行其他的修改。
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