How do I group results in columns using case statements? - sql-server

Question

I want to group the results in a separate column as Idle Total, Lock Total etc. I'm not a programmer and certainly not an db admin so i may not have all tools and access but I'll appreciate any help.
I've tried using other methods, here and other websites but it always comes down to the SUM or GROUP BY functions which I understand very little of.
SELECT TOP 10000
AGENT.AGENT_NAME,
ID.AGENT_ID,
TIME.DURATION_SECONDS,
SUM(CASE
WHEN ID.AGENT_ID IN ('IDLE','LOCK','LOGIN')
THEN 'WORKSTATE'
ELSE NULL
END)
FROM
WORKSTATE TIME
LEFT JOIN
DATABASE ID ON ID.INDEX = TIME.AGENT_INDEX
LEFT JOIN
DATABASE ORG ON TIME.AGENT_LOGIN_ID = ORG.AGENT_NAME
WHERE
(TIME.START_TIME = 2019-08-19) AND ORG.TEAM IN 'COMPANY'
GROUP BY
AGENT_AGENT_NAME,
ID.AGENT_ID,
TIME.DURATION_SECONDS
I would like the results to group TOTAL time an agent was Idle, Locked or Login on a given date.
Date Name Idle hrs Lock hrs Login
--- --- ------ ------ -----
08/19 John 2.3 1.7 4

Answer 1

You need to add CASE expression for each column, following query would help you to start with:
SELECT
TIME.START_TIME,
TIME.AGENT_LOGIN_ID,
SUM(CASE
WHEN ID.AGENT_ID = 'IDLE'
THEN TIME.DURATION_SECONDS END) as IdleTime, -- You may calculate You can formula to get HOURS from SECONDS or replace the column "DURATION_SECONDS" with the one that you looking to do aggregation
SUM(CASE
WHEN ID.AGENT_ID = 'LOCK'
THEN TIME.DURATION_SECONDS END) as LockTime,
SUM(CASE
WHEN ID.AGENT_ID = 'LOGIN'
THEN TIME.DURATION_SECONDS END) as LogTime
FROM WORKSTATE TIME
LEFT JOIN
DATABASE ID ON TIME.AGENT_INDEX = ID.INDEX
LEFT JOIN
DATABASE ORG ON TIME.AGENT_LOGIN_ID = ORG.AGENT_NAME
WHERE
(TIME.START_TIME = 2019-08-19) AND ORG.TEAM = 'COMPANY'
GROUP BY
TIME.START_TIME, TIME.AGENT_LOGIN_ID,