Check partition read only in Oracle

Check the status for partition

col PARTITION_NAME for a32
select partition_name,read_only from dba_tab_partitions where table_name='TRAN';
PARTITION_NAME   READ
---------------- ----
TRAN_202101      NO
TRAN_202102      NO
TRAN_202103      NO
TRAN_202104      No

Modified the partition into Read only state.

ALTER TABLE table_name MODIFY PARTITION partition_name READ ONLY;
Example
ALTER TABLE scott.tran MODIFY PARTITION tran_202101 READ ONLY;

Modified the partition into Read write state.

ALTER TABLE table_name MODIFY PARTITION partition_name READ WRITE;
Example
ALTER TABLE SCOTT.TRAN modify partition TRAN_201601 read write;

Script for converting all read-only partition to read-write for a table or vice versa

--Convert read only partition to read write.
SELECT 'ALTER TABLE '||table_name||' MODIFY PARTITION '||partition_name ||' READ WRITE;' from dba_tab_partitions where read-only = 'YES';

--Convert read write partition to read only.
SELECT 'ALTER TABLE '||table_name||' MODIFY PARTITION '||partition_name ||' READ ONLY;' from dba_tab_partitions where read-only = 'NO';