SqlParameter - behaviour of Scale property for datetime2 parameters (#2604)

* Update SqlParameter.xml

Added note about setting scale on datetime2, datetimeoffset and time parameters. It is not possible to set the scale to 0 as this gets changed to 7 internally.

* Update xml/System.Data.SqlClient/SqlParameter.xml

Oxford comma!

Co-Authored-By: Maira Wenzel <[email protected]>

* Update xml/System.Data.SqlClient/SqlParameter.xml

Agreed

Co-Authored-By: Maira Wenzel <[email protected]>

Author: alansingfield

xml/System.Data.SqlClient/SqlParameter.xml

@@ -1241,11 +1241,13 @@ static void CreateSqlParameterLocaleId(){
           <format type="text/markdown"><![CDATA[  
   
 ## Remarks  
- The <xref:System.Data.SqlClient.SqlParameter.Scale%2A> property is used by parameters that have a <xref:System.Data.SqlDbType> of `Decimal`.  
+ The <xref:System.Data.SqlClient.SqlParameter.Scale%2A> property is used by parameters that have a <xref:System.Data.SqlDbType> of `Decimal`, `DateTime2`, `DateTimeOffset`, or `Time`.  
   
 > [!WARNING]
 >  Data may be truncated if the <xref:System.Data.SqlClient.SqlParameter.Scale%2A> property is not explicitly specified and the data on the server does not fit in scale 0 (the default).  
-  
+>  For the `DateTime2` type, scale 0 (the default) will be passed as datetime2(7). There is currently no way to send a parameter as datetime2(0). Scales 1-7 work as expected.
+> This problem applies to `DateTimeOffset` and `Time` as well.
+
  You do not need to specify values for the <xref:System.Data.SqlClient.SqlParameter.Precision%2A> and <xref:System.Data.SqlClient.SqlParameter.Scale%2A> properties for input parameters, as they can be inferred from the parameter value. `Precision` and `Scale` are required for output parameters and for scenarios where you need to specify complete metadata for a parameter without indicating a value, such as specifying a null value with a specific precision and scale.  
   
 > [!NOTE]