Minh cung da biet User va PassWord de dang nhap vao Oracle nhung khong biet la tien trinh cai dat nhu the nao ma sau khi cai xong khong that thong bao ve User va Pass gi het. Cho nen minh khong the dang nhap vao duoc ma xuat hien thong bao loi la
ERROR
ORA-12560: TNS:Protocol Adapter Error
Cac ban giup minh voi nha !
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