primary key index meaning in English

主关键字索引

The following example disables a primary key constraint by disabling the primary key index
以下示例通过禁用primary key索引来禁用primary key约束。
The reason why these other tables are missing is probably because they do not have a primary key index field associated with them : only the
其他表为什么没有出现，可能是因为它们没有相关联的主键（索引字段）：只有
Method . in ado . net , rows are represented as collections , so you can loop through a table as you would through any collection , or access particular rows via ordinal or primary key index
在ado . net中，行表示为集合，因此您可以像依次通过任何集合那样依次通过表，或通过序号索引或主键索引访问特定行。