ORA-

ORA-08104: this index object is being online built or rebuilt

While dropping an index, if you are fa...

ORA-27054: NFS file system where the file is created while expdp

...

ORA-00600 kcratr_nab_less_than_odr while starting the database

While opening the database ,...

ORA-27102: out of memory while starting DB instance

While starting DB instance bel...

ORA-00059: maximum number of DB_FILES exceeded

While adding new datafile, you may face below error. ...

ORA-01940: cannot drop a user that is currently connected

While dropping a user in oracle database...

ORA-31623: a job is not attached to this session via the specified handle

PROBLEM: ...

ORA-600:[kpdbModAdminPasswdInRoot: Not CDB]

While changing the p...

ORA-20013: DBMS_QOPATCH ran mostly in non install area

While running datapatch t...

ORA-29548: Java system class reported

You might have faced below error. SQL> select dbms_java.get...