Sql – How to copy data records between two instances of an SQLServer database

Try this:

insert into MyTable(field1, field2, id_backup)
    select field1, field2, uniqueId from MyTable where uniqueId = @Id;

Any fields not specified should receive their default value (which is usually NULL when not defined).

If your production SQL server and test SQL server can talk, you could just do in with a SQL insert statement.

first run the following on your test server:

Execute sp_addlinkedserver PRODUCTION_SERVER_NAME

Then just create the insert statement:

INSERT INTO [PRODUCTION_SERVER_NAME].DATABASE_NAME.dbo.TABLE_NAME   (Names_of_Columns_to_be_inserted)
SELECT Names_of_Columns_to_be_inserted
FROM TABLE_NAME