How to manually remove the mgmt_ecm_depot1.dbf, mgmt.dbf, mgmt_ad4j.dbf.

Seems an object that synonym is always reference to the data mgmt_ecm_depot1.dbf, mgmt.dbf, mgmt_ad4j.dbf files.

When I check with the data file, it shows

SQL > select name from v$ datafile;

NAME
--------------------------------------------------------------------------------
/U06/oradata/OEM/system_01.dbf
/U05/oradata/OEM/sysaux_01.dbf
/U05/oradata/OEM/undotbs_01.dbf
/U02/oradata/OEM/users_01.dbf
/U03/oradata/OEM/tools_01.dbf
/U01/app/Oracle/oradata/OEM/mgmt_ecm_depot1.dbf
/U01/app/Oracle/oradata/OEM/Mgmt.dbf
/U01/app/Oracle/oradata/OEM/mgmt_ad4j.dbf

8 selected lines.

How to manually remove these data files.

Appreciate your help.
 I want to delete the datafiles mgmt_ecm_depot1.dbf, mgmt.dbf, mgmt_ad4j.dbf. 

Are these data files are linked with any tablespace? If Yes, then do the following:

 DROP TABLESPACE tablespace_name INCLUDING CONTENTS AND DATAFILES CASCADE CONSTRAINTS;

This will minimize storage as well as data files and content.

If these data files are offline connection, then we the BONES in order to remove

 rm 

Kind regards

Tags: Database

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