如何在VB.NET中运行此SQL查询？

Question

我正在使用SQL Server 2008，并且该查询已成功运行，现在我的要求是在VB.NET（Visual Studio 2010）中执行此代码。 这是一个UPDATE命令。 如何转换并在VB.NET中运行它？

DECLARE @Rt int
SET @Rt = 0

UPDATE DB.dbo.Sales
SET @Rt = Total = @Rt + Area1 + Area2
FROM DB.dbo.Sales

Answer 1

尝试这个

Dim query as string = "UPDATE DB.dbo.Sales SET @Rt = Total = @Rt + Area1 + Area2 FROM Sales"
Dim updateCommand as new SqlCommand(query, SqlConnection)
updateCommand.Parameters.AddWithValue("@rt",0)
If 0 <> updateCommand.ExecuteNonQuery() Then 'Number of rows affected by the query
'Update command was successfull.
End If