Usually I run a script like this:
通常我运行这样的脚本:
ALTER TABLE [TABLE]
ALTER COLUMN [Column] NVARCHAR(40);
The result is that the field in the table gets converted to nvarchar. But what is the syntax for doing the same thing for a view? Or is that even possible?
结果是表中的字段转换为nvarchar。但是为视图做同样的事情的语法是什么?或者甚至可能吗?
2 个解决方案
#1
23
Sure
当然
CREATE VIEW AView
AS
SELECT CAST(title AS char(50))
FROM titles
So check out CAST and also CONVERT on the msdn pages for full info
因此,请查看CAST以及msdn页面上的CONVERT以获取完整信息
#2
-1
Yes..You can try Convert function to do this.
是..您可以尝试转换功能来执行此操作。
Convert (Desired datatype,column name)
eg.Convert(varchar(50),dbo.User_master.User_email)
where User_email has previous type as nvarchar(MAX).
eg.Convert(varchar(50),dbo.User_master.User_email)其中User_email的前一个类型为nvarchar(MAX)。
If you want to convert nvarchar data to datetime then additional parameter is needed to Convert function like
如果要将nvarchar数据转换为datetime,则转换函数需要附加参数
CONVERT(data_type(length),expression,style)
eg. Convert(Datetime,dbo.User_master.User_DOB,103)
例如。转换(日期时间,dbo.User_master.User_DOB,103)
more info at SQL Server CONVERT() Function
SQL Server CONVERT()函数的更多信息
#1
23
Sure
当然
CREATE VIEW AView
AS
SELECT CAST(title AS char(50))
FROM titles
So check out CAST and also CONVERT on the msdn pages for full info
因此,请查看CAST以及msdn页面上的CONVERT以获取完整信息
#2
-1
Yes..You can try Convert function to do this.
是..您可以尝试转换功能来执行此操作。
Convert (Desired datatype,column name)
eg.Convert(varchar(50),dbo.User_master.User_email)
where User_email has previous type as nvarchar(MAX).
eg.Convert(varchar(50),dbo.User_master.User_email)其中User_email的前一个类型为nvarchar(MAX)。
If you want to convert nvarchar data to datetime then additional parameter is needed to Convert function like
如果要将nvarchar数据转换为datetime,则转换函数需要附加参数
CONVERT(data_type(length),expression,style)
eg. Convert(Datetime,dbo.User_master.User_DOB,103)
例如。转换(日期时间,dbo.User_master.User_DOB,103)
more info at SQL Server CONVERT() Function
SQL Server CONVERT()函数的更多信息