DECLARE @primaryTVP primary_tbltype
DECLARE @relatedTVP related_tbltype
INSERT INTO @primaryTVP values (1, 'John', 'Cleese')
INSERT INTO @primaryTVP values (2, 'Eric', 'Idle')
INSERT INTO @primaryTVP values (3, 'Graham', 'Chapman')
INSERT INTO @relatedTVP values (1, '29310918', 28934.33)
INSERT INTO @relatedTVP values (2, '123123', 3418.11)
INSERT INTO @relatedTVP values (2, '33333', 666.66)
INSERT INTO @relatedTVP values (3, '554433', 22.22)
INSERT INTO @relatedTVP values (3, '239482', 151515.15)
EXEC MySproc @primaryTVP, @relatedTVP;