A precedence constraint already exists between the specified executable. More than one precedence constraint is not allowed.
命名空间： Microsoft.SqlServer.Dts.Runtime
程序集： Microsoft.SqlServer.ManagedDTS（在 Microsoft.SqlServer.ManagedDTS.dll 中）
语法
声明
Public Const DTS_E_DUPLICATECONSTRAINT As Integer
用法
Dim value As Integer
value = HResults.DTS_E_DUPLICATECONSTRAINT
public const int DTS_E_DUPLICATECONSTRAINT
public:
literal int DTS_E_DUPLICATECONSTRAINT
static val mutable DTS_E_DUPLICATECONSTRAINT: int
public const var DTS_E_DUPLICATECONSTRAINT : int