mysql sum total amout

select a.id, a.name, a.surname, (select count(b.*) from member b where member where b.staff1 = a.id or b.staff2 = a.id) as count_customer from staff a

Hi mayankagarwal
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*) from member b where member where b.staff1 = a.id or b.staff2 = a.id) as count' at line 1

select a.id, a.name, a.surname, (select count(b.idmember) from member b where b.staff1 = a.id or b.staff2 = a.id) as count_customer from staff a

SELECT A.id, A.name, A.surname, Count(B.idmember)CustomerCount
FROM Staff A LEFT OUTER JOIN member B
ON B.staff1 = A.id
OR B.staff2 = A.id

SELECT A.id, A.name, A.surname, Count(B.idmember) as CustomerCount
FROM Staff A LEFT OUTER JOIN member B
ON (B.staff1 = A.id
OR B.staff2 = A.id)

what is the difference staff1 and staff2?

according to me there can be two staff member catering to the same customer

Thanks for explanation mayankagarwal

Alternative way

SELECT * FROM
(
SELECT a.staff1 staff, MAX(b.name) NAME, MAX(b.surname) surname, COUNT(1) total FROM member a, staff b
WHERE a.staff1=b.id
GROUP BY a.staff1
UNION
SELECT a.staff2 staff, MAX(b.name) NAME, MAX(b.surname) surname, COUNT(1) total FROM member a, staff b
WHERE a.staff2=b.id
GROUP BY a.staff2
)

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Hi sihar86
1248 - Every derived table must have its own alias

the query i have given is not working??

hi experts

Every member have staff to take care  member a was take care by staff1 and incase staff1 can not take care staff2 will take care the
   i want to see how many member that staff take care if it to much so will consider to look fore anoter staff to take cate

                     staff1   staff2
david               20       5
robert              19       6
Susan              18       4

Hi,

try this

- Bhavesh

SELECT A.idmember,A.Sname,
		Count(CASE WHEN A.staff1 = B.id THEN 1 ELSE 0 END) AS Staff1Count,
		Count(CASE WHEN A.staff2 = B.id THEN 1 ELSE 0 END) AS Staff2Count
FROM member A LEFT OUTER JOIN staff B
ON A.staff1 = B.id 
OR A.staff2 = B.id
Group By 
	A.idmember,A.Sname

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I forget the table name
for the result staff and amount of member

SELECT * FROM
(
SELECT a.staff1 staff, MAX(b.name) NAME, MAX(b.surname) surname, COUNT(1) total FROM member a, staff b
WHERE a.staff1=b.id
GROUP BY a.staff1
UNION
SELECT a.staff2 staff, MAX(b.name) NAME, MAX(b.surname) surname, COUNT(1) total FROM member a, staff b
WHERE a.staff2=b.id
GROUP BY a.staff2
)

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for the result member and amount of staff1 and staff2

SELECT a.name, 
(SELECT COUNT(1) FROM tes b WHERE b.name=a.name AND staff1 <> '') staff1,
(SELECT COUNT(1) FROM tes c WHERE c.name=a.name AND staff2 <> '') staff2
FROM tes a
GROUP BY a.name

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