これはうまくいきませんか?
SELECT Username
FROM Resource R
JOIN ResourcePhone RP on R.ResourceID = RP.ResourceID
WHERE RP.phonenumber = '1111111111'
これはうまくいきませんか?
SELECT Username
FROM Resource R
JOIN ResourcePhone RP on R.ResourceID = RP.ResourceID
WHERE RP.phonenumber = '1111111111'