Inserting new columns in the middle of a table?

When one uses "ALTER TABLE tab ADD col", the new column gets added to the end of the table. For example:

TABLE: TAB
COL_1 COL_2 COL_4

ALTER TABLE TAB ADD COL_3

table will become

TABLE: TAB
COL_1 COL_2 COL_4 COL_3

However as the naming of my example columns suggests I'd actually like the table to end up like this:

TABLE: TAB
COL_1 COL_2 COL_3 COL_4 

With COL_3 before COL_4.

Besides rebuilding the table from scratch, is there any standard SQL that will get the job done? However if there is no standard SQL, I could still use some vendor dependent solutions for Oracle, but again a standard solution would be best.

Thanks.