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  SQL Server Tips by Gama and Naughter

 

Schema-Bound Functions
 

A UDF can be bound to the schema of any objects it references, such as tables, views, and other UDF's. Binding is specified with the SCHEMABINDING clause and the name of the object to be bound. The main advantage of schema binding is that if a UDF is bound to an object, the objectís schema cannot change unless the schema binding is dropped first.

 

Prerequisites for binding

  • All views and UDF's referenced by the function must be schema-bound.

  • All objects referenced by the function must be from the same database as the UDF.

  • All objects referenced by the function require the user to have REFERENCES permissions.

  • All objects referenced by the function are not referenced using a two-part name.


The above book excerpt is from:

Super SQL Server Systems
Turbocharge Database Performance with C++ External Procedures

ISBN: 0-9761573-2-2
Joseph Gama, P. J. Naughter

 http://www.rampant-books.com/book_2005_2_sql_server_external_procedures.htm
 

 

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