SQL> delete from scott.tran where created_date=to_date('01.01.2016','dd.mm.yyyy'); delete from scott.tran where created_date=to_date('01.01.2016','dd.mm.yyyy') * ERROR at line 1: ORA-14466: Data in a read-only partition or subpartition cannot be modified.
For deleting the date from scott.tran table, you need to modify the read only partition to read write state.
1. Find the read-only partition from table.
col PARTITION_NAME for a32 select partition_name, read_only from dba_tab_partitions where table_name='TRAN' and read_only = 'YES';
2. Convert the read only partition to read write.
SQL> alter table tran modify partition tran_201601 read write;
Script for converting all read-only partition to read-write for a table.
SELECT 'ALTER TABLE '||table_name||' MODIFY PARTITION '||partition_name ||' READ WRITE;' from dba_tab_partitions where read-only = 'YES';