ORA-00600 When running ALTER command?

Question

I am running this command on a table :

ALTER TABLE testTable ADD column1 NUMBER(1) DEFAULT 0 NOT NULL;

And i keep getting this error:

Answer 1

This is a bug, and you need to talk with your dba to make a SR as paxdiablo said.

If you are pressed for time, you can manually do what does

ALTER TABLE testTable ADD column1 NUMBER(1) DEFAULT 0 NOT NULL;

1. Add the column as null:

   ALTER TABLE testTable ADD column1 NUMBER(1);
   

2. Update values:

   update testTable set column1 = 0;
   

3. Alter table not null(between precedent and this, you must be sure that nobody inserts in the table):

   ALTER TABLE testTable MODIFY(column1  NOT NULL)
   

Answer 2

Well, despite the fact you stated in your other question that you removed the after clause, it's still there :-)

But that's irrelevant. This is a serious bug with Oracle.

You need to report it to them (raise an SR with your Oracle Support rep), as the error message advises.