Trying to introduce a simple new condition to a JOIN query

Question

I am using SQLite and I had someone help me construct this JOIN query which works quite well, but now I need to add another condition but I am having trouble introducing it to the query without it breaking.

In both tables used in the JOIN there is a column called EventId and I want to introduce the simple condition...

WHERE EventId = 123456

Below you can see a working example of the query itself along with two comments where I have tried to introduce the new condition and failed (because I'm bad at SQL).

SELECT t.MicrosoftId, 
    SUM(CASE WHEN name = 'necktie' THEN 1 ELSE 0 END) as 'necktie',
    SUM(CASE WHEN name = 'shirt' THEN 1 ELSE 0 END) as 'shirt',
    SUM(CASE WHEN name = 'suit' THEN 1 ELSE 0 END) as 'suit',
    SUM(CASE WHEN name = 'man' THEN 1 ELSE 0 END) as 'man',
    SUM(CASE WHEN name = 'male' THEN 1 ELSE 0 END) as 'male' 
FROM TagsMSCV t 
        /* <---- WHERE t.EventId = 123456 (fails here...) */
LEFT JOIN 
(SELECT i.MicrosoftId
FROM Images i 
GROUP BY i.MicrosoftId) i 
ON i.MicrosoftId = t.MicrosoftId 
WHERE t.name IN ('necktie','shirt','suit','man','male') 
        /* <---- AND WHERE t.EventId = 123456 (fails here too...) */
GROUP BY t.MicrosoftId

Answer 1

try like below

select t1.* from   ( SELECT t.MicrosoftId, 
        SUM(CASE WHEN name = 'necktie' THEN 1 ELSE 0 END) as 'necktie',
        SUM(CASE WHEN name = 'shirt' THEN 1 ELSE 0 END) as 'shirt',
        SUM(CASE WHEN name = 'suit' THEN 1 ELSE 0 END) as 'suit',
        SUM(CASE WHEN name = 'man' THEN 1 ELSE 0 END) as 'man',
        SUM(CASE WHEN name = 'male' THEN 1 ELSE 0 END) as 'male' 
    FROM TagsMSCV t WHERE t.EventId = 123456 
  and name IN ('necktie','shirt','suit','man','male') group by t.MicrosoftId 
  ) t1

You did mistake to create subquery and as 2nd subquery no need group by as there no aggregate function used

Answer 2

It should be in WHERE section, but without second WHERE keyword:

SELECT t.MicrosoftId, 
    SUM(CASE WHEN name = 'necktie' THEN 1 ELSE 0 END) as 'necktie',
    SUM(CASE WHEN name = 'shirt' THEN 1 ELSE 0 END) as 'shirt',
    SUM(CASE WHEN name = 'suit' THEN 1 ELSE 0 END) as 'suit',
    SUM(CASE WHEN name = 'man' THEN 1 ELSE 0 END) as 'man',
    SUM(CASE WHEN name = 'male' THEN 1 ELSE 0 END) as 'male' 
FROM TagsMSCV t 
LEFT JOIN 
(SELECT i.MicrosoftId
FROM Images i 
GROUP BY i.MicrosoftId) i 
ON i.MicrosoftId = t.MicrosoftId 
WHERE t.name IN ('necktie','shirt','suit','man','male') 
AND t.EventId = 123456
GROUP BY t.MicrosoftId