如何在 DB2 Sql 中的上一列下方获取下一列的值

Question

I have a table as below, i want to get the OUT column value below the IN column and adding a new record.

    create table Temp (
    [name] varchar(10),
    [In] varchar(10),
    [Out] varchar(10),
    [HRs] varchar(10),
    ); 
    
    insert into Temp values('bob','login','logout','8');
    insert into Temp values('alice','login','logout','9');
    insert into Temp values('peter','login',null,'0');

Table output

NAME	IN	OUT	HRs
bob	login	logout	8
alice	login	logout	9
peter	login	NULL	0

Expected Output

NAME	IN	HRs
bob	login	8
bob	logout	8
alice	login	9
alice	logout	9
peter	login	0
peter	NULL	0

I need to achieve the above output on the Temp table combining the IN & OUT columns into IN column, how to achieve this in DB2 sql

Answer 1

One approach uses union:

SELECT NAME, "IN", HRs
FROM
(
    SELECT NAME, "IN", HRs, 1 AS pos FROM Temp
    UNION ALL
    SELECT NAME, "OUT", HRs, 2 FROM Temp
) t
ORDER BY NAME, pos;