oracle 在當前庫建立另一個庫的連接並使用

今天想查詢一條數據會用到另外一個數據庫，想不切換數據庫的情況下查詢； create public database link TEST_DBLINK   connect to alibaba identified by qwer1234   using '(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST =10.111.

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