Queries related to XS services in SAP HANA

Hi ,

I have a few queries related to XS services in SAP HANA.

1) In my project i am creating tables from eclipse wit .hdbtable extension.
These changes are moved to QA.I did some changes to those tables in DEV system after migration.

How to move only those changes to QA?
What is APPLY PATCH in team provider?

2) I created project in project explorer.I delete some unwanted files from project but those files are still available under package in workspace.

How to delete unwanted files from server or package?

3) In stored procedure i am using cursor for select statement with for update.

Ex: define cursor c_cur for select col1,
                                                col2,
                                                 col3
                                        from table1
                                        where col1 = '1'
                                        for update;

for r1 as c_cur do
v_count := v_count + 1;
end for;

In Table1, no of rows - 4
but getting v_count = 5.

For loop is running twice for first record.

How to avoid this issue?

i am using 64 bit HANA studio and client - rev 60.

Thanks.
Ramya