SQL

Redefinition of ‘BOOKMARK’

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If you include in a VC++ project <mapidefs.h> and <sqltypes.h> and build for the x64 platform you get a redefinition error. #include <Windows.h> #include <MAPIDefS.h> #include <sqltypes.h> int _tmain(int argc, _TCHAR* argv[]) { return 0; } 1>C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\sqltypes.h(283) : error C2371: ‘BOOKMARK’ : redefinition; different basic types 1> C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\MAPIDefS.h(1142) : see declaration … Read more

LINQ to SQL

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LINQ to SQL is an API that allows querying relational databases. The samples in this post are based on the concepts of: Entity classes (which are instances of Entity Types). Such a class is a regular .NET class that is decorated with the attribute Table and its properties and fields with the attribute Column DataContext, … Read more