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Applies to: 
SQL Server
The SqlTypes library is part of the base class library of the .NET Framework. It provides data types with the same semantics and precision as data types found in the SQL Server database. This article describes the new semantics to .NET Framework programmers, and introduces the types implemented in the System.Data.SqlTypes namespace that is included in the System.Data library.
In this section
This following table lists the articles in this section.
| Article | Description |
|---|---|
| Nullability and three-value logic comparisons | Discusses how NULL values are handled with common language runtime (CLR) integration data types. |
| Collation and CLR integration data types | Describes how collations are handled with CLR integration. |
| Handle large object (LOB) parameters in the CLR | Describes how to pass LOB types between SQL Server and the CLR. |
| Map CLR parameter data | Shows data type mappings between SQL Server, CLR integration, and the .NET Framework. |