alter table tbl_name add col_name type
例如,給表增加一列weight
mysql>alter table pet add weight Int
刪除列
alter table tbl_name drop col_name
例如，刪除列weight：
mysql>alter table pet drop weight
改變列
alter table tbl_name modify col_name type
例如，改變weight的類型：
mysql> alter table pet modify weight samllInt
另一種方法是：
alter table tbl_name change old_col_name col_name type
例如：
mysql> alter table pet change weight weight samllInt
給列更名
mysql>alter table pet change weight wei
給表更名
alter table tbl_name rename new_tbl
例如，把pet表更名為animal
mysql>alter table pet rename animal
Enter the Matrix MS-DOS screensaver.
Sample of using bios functions (by Int 10h) for text data output (monitor in the text mode) and keyboard input. Requires: Borland C++ 3.1 for DOS.
