triggers

premises : i am more of a developer and planner than of a DBA

                i test stranger things in procedures

now i have a situation in which

1. 1 one temp table has the following schema

(grouper int [should be smallint but this generates endless problems in the ODBC RFX interface]  values are 0 to 100 ,

coder  int ,

k2 int,

v1 bigint ,

v2 float ,

v3 nvarchar(80)

 ) 

1. it contain a fixed of 10 lines with a 0 value in the grouper  column then 10 to 10 thousands lines with 1 then 30 to 30 thousands lines with 2
2. i have thought that actual problem can be solved by creating a trigger that when the first value with 1 and with 2 in the grouper column , and then when populating STP ends sends a specific Windows message to an external Windows app
3. is this possible ??? and if yes how ???
4. if needed i can attach aCSV copy of the actual contents of the table

claudio cannella