In this post, you’ll learn more about the Oracle ErrorORA-01655: unable to extend cluster string.string by string in tablespace string with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-01655: unable to extend cluster string.string by string in tablespace string
Reason for the Error ORA-01655: unable to extend cluster string.string by string in tablespace string
Failed to allocate an extent of the required number of blocks for a cluster segment in tablespace indicated.
How to fix the Error ORA-01655: unable to extend cluster string.string by string in tablespace string ?
You can fix this error in Oracle by following the below steps
Use ALTER TABLESPACE ADD DATAFILE statement to add one or more files to the tablespace indicated.