How to table date according to date - sql

Question

Given table like:
+---------+------+--------+-----------+--------------+
| Empcode | name | desig | joinmonth | releivemonth |
+---------+------+--------+-----------+--------------+
| 1. | A1. | D1. | Jan-18. | null |
| 2. | A2. | D2. | Jan-18. | May-18 |
| 3. | A3. | D3. | Jan-18. | null |
+---------+------+--------+-----------+--------------+
I want to show table like:
+---------------+--------+--------+--------+--------+--------+
| Remarks | jan-18 | feb-18 | mar-18 | apr-18 | may-18 |
+---------------+--------+--------+--------+--------+--------+
| Joinmonth | 3 | 0 | 0 | 0 | 0 |
| Releivedmonth | 0 | 0 | 0 | 0 | 1 |
+---------------+--------+--------+--------+--------+--------+

Answer 1

You need to unpivot and then re-pivot:
select remarks,
sum(case when mon = 'jan-18' then 1 else 0 end) as jan_18,
sum(case when mon = 'feb-18' then 1 else 0 end) as feb_18,
sum(case when mon = 'mar-18' then 1 else 0 end) as mar_18,
sum(case when mon = 'apr-18' then 1 else 0 end) as apr_18,
sum(case when mon = 'may-18' then 1 else 0 end) as may_18
from t cross apply
(values ('Joinmonth', t.Joinmonth), ('Receivedmonth', Receivedmonth)
) v(remarks, mon)
group by remarks

Answer 2

This is an extended comment rather than answer, please accept that I
needed formatting controls before down-voting this.
You appear to have added a query into a comment, although the syntax wasn't fully correct. You have often used standard parentheses () instead of brackets [] and there was a closing parenthesis missing to terminate the IN(). I believe your query should look like this:
SELECT
empname AS remarks
, [1-1-18]
, [1-2-18]
, [1-3-18]
, [1-4-18]
, [1-5-18]
FROM (
SELECT
empname
, joimonth
, releivedmonth
FROM emply
) AS s
PIVOT (
COUNT(releivedmonth)
FOR joinmonth IN ([1-1-18], [1-2-18], [1-3-18], [1-4-18], [1-5-18])
) piv
You should not attempt to add queries to comments, instead just edit the question.
In this query you refer to values that look like 1-1-18 but in the sample of data there is nothing that looks like that at all. What data type is the column [joinmonth] and [releivedmonth]?
With data that is text in those columns you have substantial problem. If for example these are all different: Jan-18.,Jan 18,Jan-18 so they would not align as you need them to. Variations in data like this will make this impossible.
CREATE TABLE emply(
Empcode NUMERIC(9,0)
,empname VARCHAR(6)
,desig VARCHAR(8)
,joinmonth varchar(30)
,releivemonth varchar(30)
);
INSERT INTO emply(Empcode,empname,desig,joinmonth,releivemonth) VALUES (1.,'A1.','D1.','Jan-18.',NULL);
INSERT INTO emply(Empcode,empname,desig,joinmonth,releivemonth) VALUES (2.,'A2.','D2.','Jan-18.','May 18');
INSERT INTO emply(Empcode,empname,desig,joinmonth,releivemonth) VALUES (3.,'A3.','D3.','Jan-18.',NULL);
SELECT
empname AS remarks
, [Jan-18.]
, [Feb-18.]
, [Mar-18.]
, [Apr-18.]
, [May-18.]
FROM (
SELECT
empname
, joinmonth
, releivemonth
FROM emply
) AS s
PIVOT (
COUNT(releivemonth)
FOR joinmonth IN ([Jan-18.], [Feb-18.], [Mar-18.], [Apr-18.], [May-18.])
) piv
The output from this however is:
+----+---------+---------+---------+---------+---------+---------+
| | remarks | Jan-18. | Feb-18. | Mar-18. | Apr-18. | May-18. |
+----+---------+---------+---------+---------+---------+---------+
| 1 | A1. | 0 | 0 | 0 | 0 | 0 |
| 2 | A2. | 1 | 0 | 0 | 0 | 0 |
| 3 | A3. | 0 | 0 | 0 | 0 | 0 |
+----+---------+---------+---------+---------+---------+---------+
There is only one non-null value of COUNT(releivemonth)