Please check SQL Query which will show results.
For example
SELECT name,id,dt_loss
FROM [trial_Data]
where dt_loss ='2012-03-01' and dt_loss='2012-03-06'
group by name,id,dt_loss
OR
SELECT name,id,dt_loss
FROM [trial_Data]
where dt_loss between '2012-03-01' and '2012-03-06'
group by name,id,dt_loss
Also Tell me that what u mean date off one day is it shows wrong date(less than actual stoted in db) or total data displayed less than one day less