“Hapus C1 dari Tablename C1 Dalam Bergabunglah Tablename C2 Di mana C1.ID” Kode Jawaban

Hapus C1 dari Tablename C1 BAGIAN BAGIAN Tablename C2 Di mana C1.ID> C2.ID dan C1.Utaque_field = c2.unique_field;

SELECT name, email, COUNT(name)
FROM student_contacts
GROUP BY name
HAVING COUNT(name) > 1;