I attempted to decrease a column inside a Sybase table but I get this exception:

Can't allocate space for object 'TABLE1' in database 'SAMPLE' because 'default' segment is full/doesn't have free extents. Should you went from space in syslogs, dump the transaction log. Otherwise, use ALTER DATABASE to expand the segment.

I already attempted ALTER DATABASE but with no success. Help.

Thanks!

Perhaps you have attempted this?