【多选题】
A After a manual upgrade, TNSNAMES. ORA entries must be updated to reflect the new ORACLE HOME
B The new extended data type capabity must be enabled by running the utlrp. sql script
C The Oracle Application Express configuration should be updated after upgrading Oracle Database
D Any Recovery Manager(RMAN)recovery catalog must be upgraded manually
E Time zone files must be upgraded manually using the DBMS DST PL/SQL package.
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