Does SQL Server 2008 R2 offer referential integrity across databases? -

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i have database user authentication information , business data. possible declare referential integrity constraints on columns in 1 database in another?

i using microsoft sql server 2008 r2.

referential integrity across tables (somewhat simple rules) maintained use of foreign key constraints.

more complex business rules (cross database referential integrity) handled triggers.

ideally relational data should kept in 1 database yet complex business requirement can change this, triggers come handy in situation.


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