The fourth column shows the index type (as defined in the schema in Listing 5) used to represent the datum.

第四列将显示用于表示数据的索引类型(按照清单5的模式中的定义)。

youdao

An index is named the same as the corresponding indexed attribute and is always a MapRangeIndex index type.

索引名称与对应的编入索引的属性名称相同，且通常是一种MapRangeIndex索引类型。

youdao

Index type (CLUSTERED or NONCLUSTERED) not specified.

(聚集或非聚集)索引类型未指定。

youdao

Index type (CLUSTERED or NONCLUSTERED) not specified.

(聚集或非聚集)索引类型未指定。

youdao