EF Core 3.0 中的存储过程

Question

如何在 EF Core 3.0 中使用存储过程？

我试过以下方法

var user = await _context.Query<User>().FromSql("EXECUTE dbo.spGeneral_Authenticate").FirstOrDefaultAsync();

var user = await _context.Query<User>().FromSqlRaw("EXECUTE dbo.spGeneral_Authenticate").FirstOrDefaultAsync();

var user = await _context.Set<User>().FromSql("EXECUTE dbo.spGeneral_Authenticate").FirstOrDefaultAsync();

var user = await _context.Set<User>().FromSqlRaw("EXECUTE dbo.spGeneral_Authenticate").FirstOrDefaultAsync();

EF 核心以错误的方式翻译 SQL。我从日志文件中得到了翻译后的 SQL。

2019-09-27 11:21:36.086 +05:30 [Error] Failed executing DbCommand ("30"ms) [Parameters=[""], CommandType='Text', CommandTimeout='30']" ""SELECT TOP(1) [u].[FullName], [u].[Password], [u].[UserName] FROM ( EXECUTE dbo.spGeneral_Authenticate ) AS [u]" 2019-09-27 11:21:36.154 +05:30 [Error] An exception occurred while iterating over the results of a query for context type '"__________Context"'." ""Microsoft.Data.SqlClient.SqlException (0x80131904): Incorrect syntax near the keyword 'EXECUTE'. Incorrect syntax near ')'.

已翻译 SQL:

SELECT TOP(1) [u].[FullName], [u].[Password], [u].[UserName]
FROM (
    EXECUTE dbo.spGeneral_Authenticate
) AS [u]

Answer 1

Microsoft.Data.SqlClient.SqlException (0x80131904): Incorrect syntax near the keyword 'EXECUTE'. Incorrect syntax near ')'.

对于上述错误，我们应该使用 .ToList() 或 .ToListAsync() 而不是 .FirstOrDefault() 或 .FirstOrDefaultAsync()

它会起作用

var user = await _context.Set<User>().FromSql("EXECUTE dbo.spTest").ToListAsync();

不行

var user = await _context.Set<User>().FromSql("EXECUTE dbo.spTest").FirstOrDefaultAsync();
/*
Transalated SQL:
SELECT TOP(1) [u].[FullName], [u].[Password], [u].[UserName]
FROM (
    EXECUTE dbo.spTest
) AS [u]
*/

Answer 2

已接受的答案是正确的。然而，这是我的两分钱：

此外，如果您只想获得一个结果，但仍希望异步调用服务器：

var user = (await _context.Set<User>().FromSql("EXECUTE dbo.spTest").ToListAsync()).FirstOrDefault();

EF Core 3.0 中的存储过程

Stored Procedures in EF Core 3.0

.net-core-3.0

ef-core-3.0