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关于mssql 存储过程,函数 参数 默认值说明(1/4)

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Release: 2016-06-07 17:47:25
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关于mssql ,函数 参数 默认值说明
创建我们一般的写法

create proc p(@s varchar(1)='a')

as

select @s

go

exec p

go
--1
alter proc p (@s decimal=a)
as
  select @s
go
exec p
go
/*

服务器: 消息 8114,级别 16,状态 5,过程 p,行 0
将数据类型 nvarchar 转换为 numeric 时出错。

*/

--2
alter proc p (@s varchar(1)=中)
as
  select @s
go
exec p
go
/*

    
----


(所影响的行数为 1 行)

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