joining columns of same table with different criteria - SQL

Question

I am able to query with one condition ( as shown in image below ) but when i query with couple of criterias and trying to create two same columns of same table with different cr

Answer 1

So if you want lists of save_line in order by line_id, in different columns according to save_type and execution_id, you need to pivot. There are a few different ways you can do this. Here are a couple that should work no matter what flavor of SQL you are using:

SELECT line_id, 
max(CASE WHEN execution_id = '292' and save_type = 'R' then save_line end) R_292,
max(CASE WHEN execution_id = '286' and save_type = 'R' then save_line end) R_286
FROM save_output_table
GROUP BY line_id

or

SELECT t1.save_line save_line1,
t2.save_line save_line2
FROM 
    (SELECT *
    FROM save_output_table
    WHERE save_type = 'R'
    and execution_id = '292'
    ) t1

JOIN (SELECT *
    FROM save_output_table
    WHERE save_type = 'R'
    and execution_id = '286'
    ) t2
ON t1.line_id = t2.line_id

Note: for the second option, the join only gives complete lists if there are the same number of line_ids for each condition. If there aren't, you should change it to a FULL OUTER JOIN, which wouldn't work in MySQL and possibly others.