Oracle Solution for Error ora-29338

ORA-29338: datafile string is in an undesired state (string, string)

What triggered the Error:

e referred datafile is not in a state ready for tablespace copy operation. For example, the datafile may be offline. The datafile needs to be ONLINE, and either READ ONLY or READ WRITE.

What should we do to fix it:

t the datafile into the desired state.