How to sort values in columns and update table?

Question

I\'m completely new to sql and can\'t do that myself. So I need your help. I want to sort values in column and then save changes. But I don\'t know how to do that.

T

Answer 1

you can sort on two fields at the same time.

SELECT *
FROM games
ORDER BY id DESC, name ASC

I don't understand what you mean by save changes in the table. The ORDER BY, is just changing the display that you are looking at it doesn't change the data in the table unless you perform an UPDATE.

If you are unfamiliar with SQL, there are a lot of tutorials online that can help:

SQL Course

Beginner SQL Tutorial

SQL Tutorial - Learn SQL

Edit based on the comments, this can be done in one step:

create table #temp
(
    id int,
    name varchar(50),
    somedesc varchar(50)
)

insert into #temp values (1, 'best', 'desc1')
insert into #temp values (2, 'worth', 'desc2')
insert into #temp values (3, 'good', 'desc3')

update t1
SET t1.id = t2.rn
    , t1.somedesc = t1.somedesc
FROM #temp t1
JOIN 
(
    select id, name, somedesc, row_number() over(order by name, id) as rn
    from #temp 
) t2
on t1.id = t2.id

select *
from #temp
order by id

drop table #temp