I have got couple of doubts in HANA ,Please clarify my doubts ., I will assign points for you .
a) How to change fields dimension in HANA ? is it possible to increase dimension of fields ,when table contain data ?
I am loading Customer table from flat files ,after loading couple of records, I need to extend or change field dimension to load another set of data in that same table
b) How to delete only content of table in SAP HANA?
c) What happened if we load same set of data number of times ? or duplicate records in HANA?