Ìnner ร่วมโต๊ะ 4

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ยังต้องภายในเข้าร่วม 4 ตารางข้อมูลเรียบร้อยแล้วในภาษา sql

# no need to use parentheses - works fine
SELECT * FROM names A
INNER JOIN address B ON A.personID = B.personID
INNER JOIN emailAddress C ON A.personID = C.personID
INNER JOIN phoneNumbers D ON A.personID = D.personID;

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