There is another possibility.
Have two tables, t1 and t2, with identical structures.
t1 is your 'main' table. Assume that it is up to date with data.
On the next day, load table t2. Then use sp_rename to swap t1 and t2. And repeat ...
If you haven't even tried to resolve your issue, please don't expect the hard-working volunteers here to waste their time providing links to answers which you could easily have found yourself.