Question

这个查询有什么问题吗？我想得到不同数量的热门记录

OpenConnection();
query.CommandText = @"SELECT TOP @weeks b.name, b.lastname, [Date] 
                      FROM [Scheduling_Employee].[dbo].[Date] AS a 
                      JOIN [Scheduling_Employee].[dbo].[Employee] AS b ON a.[Employee_Id] = b.id";
query.Parameters.Clear();
query.Parameters.AddWithValue("@weeks", (weeknumber*7));

SqlDataReader reader = query.ExecuteReader();

错误是：

@Weeks附近的语法不正确

Answer 1

TOP的语法是TOP x，其中x是固定数字，或者

SELECT TOP (@variable)

如果你想指定一个变量（你需要把它放在括号中）。

所以试试这段代码：

query.CommandText = @"SELECT TOP (@weeks) b.name, b.lastname, [Date] 
                      FROM [Scheduling_Employee].[dbo].[Date] AS a 
                      JOIN [Scheduling_Employee].[dbo].[Employee] AS b ON a.[Employee_Id] = b.id";

你应该没事。

@Weeks附近的语法不正确

1 个答案: