I need some help with a specific problem about subqueries in MySQL. This is a shortversion of the problem I have:
I have table 1 and 2 where table 1 have a column called "SupplyID" which corresponds with table 2's "ID". I need to get a list with stuff from one single supplier.
I tried with this but didn't work:
select name
from item
where SupplyID exists (
select *
from SupplyID
where SupplyID = ID
);
Assuming your tables are named table1 and table2 you You could use a inner join
select distinct t1.name
from ybale as t1
inner join table2 as t2 on t1.ID = t2.SupplyID
Try this:
select name from item i where exists (select * from table2 t where i.SupplyID = t.ID);
My answer is more like to what scaisEdge answered here but I strongly recommend to do this with LEFT JOIN. and If you want to select just one ID, for example ID=10
SELECT T1.name
FROM item AS T1
LEFT JOIN SupplyID AS T2 ON T2.SupplyID=T1.ID
WHERE T1.ID = 10