Tried to rename a file of database, but it failed with ORA-00946.
SQL> alter database rename file '/oradata/ORCLCDB/ORCLPDB/example01.dbf' '/oradata/TESTCDB/ORCLPDB/example01.dbf';
alter database rename file '/oradata/ORCLCDB/ORCLPDB/example01.dbf' '/oradata/TESTCDB/ORCLPDB/example01.dbf'
ERROR at line 1:
ORA-00946: missing TO keyword
ORA-00946 means that the keyword TO is missing from the statement you issued, which causes a syntax error.
To solve ORA-00946, we should follow the error message.
SQL> alter database rename file '/oradata/ORCLCDB/ORCLPDB/example01.dbf' to '/oradata/TESTCDB/ORCLPDB/example01.dbf';
We made it.