Will the changes make on import data affect the data sources in SQL servers?

Dear all

A quick question:

if I choose "import" instead of "directly query" and made some adjustments on data, such as delete some rows/columns, edit few cells, or even delete the whole table, I assume those activities only happen in my personal computer and will not affect anything in the SQL server. 

And when I clicked "refresh", the new data will be added into the data in my personal computer based on the existing queries I made.

For example,

I imported the below chart from SQL server 

Then I removed the duplicate ROW and group those countries into groups, like put USA and CANADA  into NA bucket and the rest countries into ASIA by adding a new column.

Now, the table on my Power BI looks like

After few minutes, a new member joined, No.9, 

After I clicked "refresh", the table on my personal computer will become

However, on my company's SQL server, the table will look like the table below:

Kate is added but other columns and rows will not change. 

Thank you for answering this basic question in advance.