vb.net - click once deploying databases -

we have main application , client application. need syncronize data between 2 applications because client application have local database , changes need sent main application syncronize db.

now issue when have updates database , need publish them client application. don't want overwrite current database have. believe need how check first see if have run first time , deploy database if have run updates. easiest way deploy updates database using click once. have scripts contained in folder , when plublish update application checks in folder if scripts exists , if execute them . ideas thanks