我无法在SQL Server中插入表

Question

我创建了一个存储过程,它有两个语句insert和update.

它有两个参数:

@content as nvarchar(10),
@fieldName as int

在Update线路一切正常,但它不会插入到表.语法和一切都是真的,但是当我执行时

Execute sp_update 432,4

SQL Server显示此错误:

消息207,级别16,状态1,行1
无效的列名称"up".
消息207,级别16,状态1,行1
无效的列名称"Field3".

这是我的脚本:

ALTER procedure [dbo].[sp_update]
    @content as nvarchar(10),
    @fieldName as int
as
   declare @ff as varchar
   set @ff = Convert(varchar,@fieldName)

   declare @f as char(7) 
   set @f = 'Field'+ @ff

   declare @sqlupdate varchar(500)
   declare @sqlinserttoChangelog varchar(500)

   set @sqlinserttoChangelog = 'Insert Into dbo.changelog (changeType, fieldname) Values ('+'up'+','+@f+')'
   Exec (@sqlinserttoChangelog)

   set @sqlupdate = 'update TableTest set ' + @f + ' = '+@Content
   Exec (@sqlupdate)

Answer 1

由于您正在创建动态sql,因此值应使用单引号进行换行.要逃避单引号,必须加倍,例如.

set @sqlinserttoChangelog = 'Insert Into dbo.changelog (changeType, fieldname) Values ('''+'up'+''', '+@f+')'

与...相同 content

set @sqlupdate = 'update TableTest set ' + @f + ' = '''+ @Content + ''''