Cannot update SQL statement box

[qinch]

I have set up Oracle DB connection using import approach , and import & refresh data successsfully. 

Currently I need to update SQL query, but when click Transform Data -> Data Source Setting -> Change Source, I found the SQL statement box is grey, not allowed to do update. How can I update SQL to obtain updated query result?

[lbendlin · Accepted solution]

Change it in the Advanced Editor for the query.

[qinch]

Thanks! I see the place to change it.