日期:2014-05-16 浏览次数:20507 次
区别是和sqlserver比较
--
示例一:Create?Table?命令,区别较小
Create
?
Table
?vendor_master
(?
?vencode?
varchar2
(
5
),
?venname?
varchar2
(
20
),
?venadd1?
varchar2
(
20
),
?venadd2?
varchar2
(
20
),
?venadd3?
varchar2
(
20
)
?)
?
--
示例二:Alter?Table?Modify?命令,区别较大
Alter
?
Table
?vendor_master?Modify?(venname?
varchar2
(
25
))
--
示例三:Alter?Table?Add?命令,区别较小,主要是数据类型
Alter
?
Table
?vendor_master
??
add
?(tel_no?
number
(
12