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[英]C#, ASP.NET core | SqlException: Incorrect syntax near the keyword 'TOP'
[英]SqlException: Incorrect syntax near @VariableName in asp.net mvc core
我正在嘗試使用 ASP.NET MVC 核心中的 MS SQL 中的存儲過程將數據(實際上是視頻)插入數據庫
我有這個代碼:
[HttpPost]
public async Task<IActionResult> Index(string title, IFormFile file, string filesize ,string filePath )
{
var Title= new SqlParameter("@Title", title);
var UploadType = new SqlParameter("@UploadType", file.ToString());
var FileSize = new SqlParameter("@FileSize", filesize);
var FilePath = new SqlParameter("@FilePath", filePath);
var insertVideo = _context.Lectures.FromSql("usp_AddNewVideoFile (@Title,@UploadType, @FileSize, @FilePath) ",parameters:new[] {Title,FileSize,FilePath,UploadType }).ToList();
await _context.SaveChangesAsync();
return RedirectToAction("Source",insertVideo);
}
存儲過程:
CREATE procedure [dbo].[usp_AddNewVideoFile]
@Title nvarchar(50),
@UploadType nvarchar(50),
@FileSize int = null,
@FilePath nvarchar(MAX)
as
begin
insert into Lectures(Name,FileSize,FilePath,UploadType)
values (@Title,@FileSize,@FilePath,@UploadType)
end
得到一個錯誤說:
SqlException:“@Title”附近的語法不正確。
可能是什么原因?
更改如下:
[HttpPost]
public async Task<IActionResult> Test(string title, IFormFile file, int filesize, string filePath)
{
var Title = new SqlParameter("@Title", title);
var UploadType = new SqlParameter("@UploadType", file.ToString());
var FileSize = new SqlParameter("@FileSize", filesize);
var FilePath = new SqlParameter("@FilePath", filePath);
//change this...
var insertVideo = _context.Database.ExecuteSqlCommandAsync("usp_AddNewVideoFile @Title,@UploadType,@FileSize, @FilePath", parameters: new[] { Title, UploadType, FileSize, FilePath });
await _context.SaveChangesAsync();
return RedirectToAction("Source", insertVideo);
}
請檢查:
[HttpPost]
public async Task<IActionResult> Index(string title, IFormFile file, string filesize ,string filePath )
{
var Title= new SqlParameter("@Title", title);
var UploadType = new SqlParameter("@UploadType", file.ToString());
var FileSize = new SqlParameter("@FileSize", filesize);
var FilePath = new SqlParameter("@FilePath", filePath);
var insertVideo = _context.Lectures.FromSqlRaw("EXECUTE usp_AddNewVideoFile @Title, @FilePath, @FilePath, @UploadType", parameters:new[] {Title,FileSize,FilePath,UploadType }).ToList();
await _context.SaveChangesAsync();
return RedirectToAction("Source",insertVideo);
}
問題在這里:
usp_AddNewVideoFile (@Title,@UploadType, @FileSize, @FilePath)
這不是你所說的SP。 理想的方法是將命令類型指定為CommandType.StoredProcedure
,並將"usp_AddNewVideoFile"
指定為CommandText
。 如果由於FromSql
而無法做到這一點,那么:
EXEC usp_AddNewVideoFile @Title,@UploadType, @FileSize, @FilePath;
但是請注意,如果這是 EF FromSql
,那么將其用於插入命令可能並不理想; 您真的在尋找“執行非查詢”API。
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