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

StackOverflow https://stackoverflow.com/questions/9347983

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?

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解决方案

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

其他提示

referential integrity is not enforced

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