1.查询已经使用的emde端口

    1. SELECT dbms_xdb_config.gethttpsport FROM dual;        --https
    2. SELECT dbms_xdb_config.gethttpport FROM dual;                 --http

    2.添加emde
    注意如果是要给pdb添加emde 需要先切换到要添加的pdb回话执行

    1. exec  DBMS_XDB_CONFIG.SETHTTPSPORT(5500);           ---https
    2. exec  DBMS_XDB_CONFIG.SETHTTPSPORT(5500);           ---http

    3.切换emde

    1.  @?/rdbms/admin/execemx   emx       -----老版emde
    2.  @?/rdbms/admin/execemx   omx             -----新版emde