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??????dblink?????SYNONYM?????

??????dblink????????????????????????????????????????dblink??????ODBC?JDBC???????????????????????????dblink???????????????IP??????????????????

dblink '172.66.50.241:1521/AAA' identified by 'AAA';

???SYNONYM???????????????????????????????????????????????????SYNONYM????

create SYNONYM table_new for table_b@dblink;

???dblink???????????

??????????????????????????

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