What does a dashed / dotted relationship line represent in SQL Management Studio - Database Diagram

醉酒当歌 提交于 2019-12-12 08:15:00

问题


I'm looking at an existing database in Microsoft SQL Server Management Studio, and in the Database Diagram there is one relatioship that appears with a dashed or dotted line. The other relationships are all solid lines. What does the dashed line mean?


回答1:


The dotted/dashed line means, that SQL Server does not enforce referential integrity for this relationship. Have a look here




回答2:


referential integrity is not enforced



来源:https://stackoverflow.com/questions/9347917/what-does-a-dashed-dotted-relationship-line-represent-in-sql-management-studio

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