Question

Im not sure how to explain this and im not use to SQL..this is my query which isnt working

select * from ao_addrcodes 
JOIN a1_addrs on a1_addrid = ao_addrid left Join a2_name on a2_addrid = ao_addrid 
where ao_codeid = 'DJ' and 'E' and 'A'

Trying to get a list of people who are in the table ao_addrid and their ao_codeid is ‘DJ’ and ‘E’ and ‘A’

So Fred would be in the table 3 times. His a2_addrid would be the same but would his
ao_codeid would be different

Each person has multiple records if they have multiple ao_codeid ‘s

help?

EDIT

ao_codeid , a2_addrid

'DJ', '525'
'E', '525'
'A', '525'
'DJ', '52'
'A', '25'
'E', '25'

So from the above data i would only want to see the user 525 appear. Not 52 or 25.

I am using MySQL

Answer 1

If you’re using SQL Server, then your WHERE statement is incorrect:

SELECT    *
FROM      ao_addrcodes
JOIN      a1_addrs ON a1_addrid = ao_addrid
LEFT JOIN a2_name ON a2_addrid = ao_addrid 
WHERE     ao_codeid IN('DJ', 'E', 'A')

Or you could do it like this

WHERE     ao_codeid = 'DJ'
OR        ao_codeid = 'E'
OR        ao_codeid = 'A'

EDIT 1

I would do something like this:

--Create a CTE that counts eligible records
WITH CodeCount AS
(
    SELECT    ID, --this represents your 525 data
              COUNT(*) AS CodeCount
    FROM      [your table]
    WHERE     code IN('DJ', 'E', 'A')
    GROUP BY  ID
)

SELECT        *
FROM          [your table]
INNER JOIN    CodeCount ON [your table].ID = CodeCount.ID
WHERE         CodeCount = 3

EDIT 2

Since you edited your post to say you’re using MySQL, this would be my solution:

SELECT    *
FROM      ao_addrcodes
JOIN      a1_addrs ON a1_addrid = ao_addrid
LEFT JOIN a2_name ON a2_addrid = ao_addrid
INNER JOIN (
                SELECT       ID,
                COUNT(*) AS  EligibleCount
                FROM         ao_addrcodes
                WHERE        ao_codeid IN('DJ', 'E', 'A')
                GROUP BY     ID
            ) a ON a.ID = ao_addrcodes.ID
WHERE         a.EligibleCount = 3