如何为包含数据值的特定字段创建主键 [英] how to create primary key for a particular field even it contains data values

问题描述

大家好，


您能否告诉我如何为一个包含数据值的字段创建主键.

hi all,


could you please tell me how to create primary key for a field even it contains data values.

推荐答案

只需继续并定义一列作为主键(通过表设计)或查询).只要满足主键约束，它将适用于带有数据的表.

在此处查找该列需要满足的条件:主键约束 [ ^ ]

Just go ahead and define a column as primary key (Through Table design or query). It will work for table with data as long as it satisfies the Primary key constraints.

Look here for conditions that the column needs to satisfy:PRIMARY KEY Constraints[^]

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