aa是种状态
幼苗
共回答了17个问题采纳率:70.6% 举报
(1)
CREATE TABLE [dbo].[Student](
[sno] [varchar](8) NOT NULL,
[sname] [nvarchar](10) NOT NULL,
[gender] [nvarchar](2) NOT NULL,
[department] [nvarchar](50) NOT NULL,
[age] [int] NOT NULL,
CONSTRAINT [PK_sno] PRIMARY KEY CLUSTERED
(
[sno] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
(2)
alter table Student alter column sno varchar(10)
(3)
drop table Student
1年前
5