Question

how can i get final table? I want to merge so that if it compares and there is an empty column in a record, it fills it up with the latter value. The rules are that storetype should appear only once for each user

Answer 1

It looks like you’re grouping by username and storetype. Try running this:

select min(id), username, min(filename), min(date), min(desc), storetype,
    min(password), min(email), min(ftp)
from table1
group by username, storetype

Note, of course, this will work in the case you really have the data as you displayed in your screenshot, i.e., only 1 non-null value per each username and storetype pair in each column but the id column. In that case, the id column, it looks like you chose the minimum, so the query will result in that too.