I am having trouble filtering data out a relational table. The query is part of a join, but I am stuck on a basic part.
I need to remove all the results with a certain id if the condition is found.
query similar to:
select * from colors where color != 'red' group by id
id color 1 red 1 blue 1 blue 2 green 2 blue 3 green 3 orange 4 red 5 white
returns 1,2,3,5
I need it to only return 2,3,5
I am not sure what mysql com开发者_JS百科mand to use
select * from colors group by id having not group_concat(color) LIKE "%red%"
should work (not tested).
But it's weird to have many ids with same value...
SELECT DISTINCT id
FROM my_table
WHERE id NOT IN (
SELECT id
FROM my_table
WHERE color = ?
)
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