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In Visual Studio, when trying to create a DAC which has a schemabound view which contains hierarchyid::GetRoot() this error is generated and the project does not build. However, the t-sql is ok as if I create the view directly in the database it works ok.

Is there a two part name for hierarchyid to solve this?

In a DAC project is VS:

CREATE VIEW [dbo].[View1] with schemabinding AS SELECT hierarchyid::GetRoot() as t


Error 93 SQL70561: Cannot schema bind view '[dbo].[View1]' because name 'hierarchyid' is invalid for schema binding. Names must be in two-part format and an object cannot reference itself.

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This is almost certainly an issue with DACs themselves -- I don't think it recognizes this as valid syntax. DACs don't support all features in SQL Server, and this appears to be one of them. – Jon Seigel Sep 10 '12 at 16:44
I'm not totally convinced, it's what I initially thought, however, if you remove schemabinding then its ok. DAC 2.0 supports hierarchyId. – Ross Buggins Sep 11 '12 at 7:42
up vote 4 down vote accepted

The answer is to add sys. in front of the hierarchyId:


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Ah, yes. This makes sense. – Jon Seigel Sep 11 '12 at 16:48

There are a couple of prerequisites to use the SCHEMABINDING option:

· You cannot use * in the SELECT clause in the query, you have to specify column names

· You have to use two-part naming convention when referring to objects (which is in general a good practice)

So, you need to use schema name always when referring to objects when you want to use the SCHEMABINDING option, in this case sys.hierarchyid

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