ORA-14416
        Online DDL's cannot be used string
        
        
        Cause
        An attempt was made to use the DROP INDEX ONLINE, ALTER TABLE DROP CONSTRAINT ONLINE, or ALTER TABLE SET UNUSED COLUMN ONLINE statement on an table type (for example, cluster, temporary, index-organized table (IOT), external tables) that was not allowed.
        Action
        Using online DDL's like DROP INDEX ONLINE, ALTER TABLE DROP CONSTRAINT ONLINE, or ALTER TABLE SET UNUSED COLUMN ONLINE statement on certain types of tables (for example, cluster, temporary, indexed-organized table (IOT), external tables) is illegal. Remove the ONLINE keyword from the statement.
        
     
    
    
        ORA-14416
        Online DDL's cannot be used string
        
        
        Cause
        An attempt was made to use the DROP INDEX ONLINE, ALTER TABLE DROP CONSTRAINT ONLINE, or ALTER TABLE SET UNUSED COLUMN ONLINE statement on an table type (for example, cluster, temporary, index-organized table (IOT), external tables) that was not allowed.
        Action
        Using online DDL's like DROP INDEX ONLINE, ALTER TABLE DROP CONSTRAINT ONLINE, or ALTER TABLE SET UNUSED COLUMN ONLINE statement on certain types of tables (for example, cluster, temporary, indexed-organized table (IOT), external tables) is illegal. Remove the ONLINE keyword from the statement.
        
     
    
    
        ORA-14416
        Online DDL's cannot be used with certain types of tables.
        
        
        Cause
        An attempt was made to use the DROP INDEX ONLINE, ALTER TABLE DROP CONSTRAINT ONLINE, or ALTER TABLE SET UNUSED COLUMN ONLINE statement on an table type (for example, cluster, temporary, index-organized table (IOT), external tables) that was not allowed.
        Action
        Using online DDL's like DROP INDEX ONLINE, ALTER TABLE DROP CONSTRAINT ONLINE, or ALTER TABLE SET UNUSED COLUMN ONLINE statement on certain types of tables (for example, cluster, temporary, indexed-organized table (IOT), external tables) is illegal. Remove the ONLINE keyword from the statement.