| Class Summary | 
| SPDebugElement | Super class for all debug model elements. | 
| SPDebugModelUtil | Utility class to process routine debug model objects. | 
| SPDebugTarget | SP debug target will only have at most one SPThread associated with it, many method of this class will delegate to
 the SPThread. | 
| SPGlobalVariable | We don't support change global variable values. | 
| SPLocalVariable | Represents a SQL variable/parameter defined in a Routineobject. | 
| SPStackFrame | This class represents a stored procedure stack frame. | 
| SPThread | This is the super class for stored procedure thread. | 
| SPValue | Stored Procedure variables are flat and simple. | 
| SPVariable | Represents a SQL variable/parameter. | 
| SPWatchExpressionDelegate | A delegate which computes the value of a SQL watch expression
 when provided a context. |