上一節講述的sql語句的執行,本節將講述的是存儲過程的執行。
執行存儲過程是通過FromProc方法來完成的。
執行無參數存儲過程如下:
DbSession.Default.FromProc("Ten Most Expensive Products").ToDataTable();
"Ten Most Expensive Products"就是存儲過程名稱。
執行帶參數的存儲過程:
DbSession.Default.FromProc("Sales by Year")
.AddInParameter("Beginning_Date", DbType.DateTime, "1995-01-01")
.AddInParameter("Ending_Date", DbType.DateTime, "1996-12-01")
.ToDataTable();
數據庫中該存儲過程
create procedure "Sales by Year"
@Beginning_Date DateTime, @Ending_Date DateTime AS
SELECT Orders.ShippedDate, Orders.OrderID, "Order Subtotals".Subtotal, DATENAME(yy,ShippedDate) AS Year
FROM Orders INNER JOIN "Order Subtotals" ON Orders.OrderID = "Order Subtotals".OrderID
WHERE Orders.ShippedDate Between @Beginning_Date And @Ending_Date
GO
AddOutParameter 方法添加輸出參數
ProcSection proc = DbSession.Default.FromProc("testoutstore") .AddInParameter("in1", System.Data.DbType.Int32, 1) .AddOutParameter("out1", System.Data.DbType.Int32) .AddOutParameter("out2", System.Data.DbType.String,100); proc.ExecuteNonQuery(); Dictionary<string, object> returnValue = proc.GetReturnValues(); foreach (KeyValuePair<string, object> kv in returnValue) { Response.Write("ParameterName:" + kv.Key + " ;ReturnValue:" + Convert.ToString(kv.Value)); Response.Write("
"); }