I need a column from row value.
I have two table.
Table 1 : working_day Contains list of all working day date.
date
--------
2013-03-30
2013-03-29
2013-03-28
Table 2 : entry contains each employee in and out time.
id In Out Date
1 9 0 2013-03-30
2 8 0 2013-03-30
3 7 0 2013-03-30
1 8 18 2013-03-29
2 9 16 2013-03-29
3 6 20 2013-03-29
4 12 15 2013-03-29
Expected Output :
ID 29-03-2013_IN 29-03-2013_Out 30-03-2013_In
1 8 18 9
2 9 16 8
3 6 20 7
4 12 15 0
Tried :
SELECT id,
Case condition1 for 29_in, // I don't know which condition suite here.
Case condition1 for 29_out,
Case condition1 for 30_in
FROM entry
WHERE DATE
IN (
SELECT *
FROM (
SELECT DATE
FROM working_day
ORDER BY DATE DESC
LIMIT 0 , 2
)a
)
You could try something like that:
select
e.id,
(SELECT `in` FROM entry WHERE id = e.id AND date = '2013-03-30') as '2013-03-30_in',
(SELECT `in` FROM entry WHERE id = e.id AND date = '2013-03-29') as '2013-03-29_in',
(SELECT `out` FROM entry WHERE id = e.id AND date = '2013-03-29') as '2013-03-29_out'
from entry e
group by e.id;
Here is Demo
IMO你应该在应用程序而不是SQL中执行此操作
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