Question

我想要读取SQl中的值。

我正在创建一个采购订单如果假设任何正文更新了库存的价格，那么我首先检查价格是否可用。

如果该价格不可用，那么我首先将该价格插入数据库＆amp;然后用库存映射新价格。

我已经实现了这个功能，但我现在已经为此编写了五个内联查询改变代码和替换为单个存储过程。＆安培;我如何将逻辑写入SQL

这是我的代码及解释

 //Checking that Buying Price Is Exist or not
            //string CheckingIBM = "select * from RS_Inventory_Buying_Master where buying_price                        ='" + UpdatedPrice + "'";
            //cm.TableConnect(CheckingIBM);

            //If Buying Price is Exist then Update PIIM table with new buying_product_id
            if (cmIS_Price_Exist.rs.Read())
            {

                //If Buying Price is Exist then Update PIIM table with new buying_product_id
                common cm1 = new common();
                string BuyingProductId = cmIS_Price_Exist.rs["buying_product_id"].ToString();

                string UpdatePIIM = "update RS_Purchase_Invoice_Info_Master set buying_product_id = '" + BuyingProductId + "', qty = '" + UpdatedQuantity + "',tax_id ='" + TaxDetails + "',picreated = 1  where purchase_order_no = '" + PO + "' and product_id = '" + ProductId + "'";
                cm1.TableInsert(UpdatePIIM);
                cm1.con.Close();
            }

             //If Buying Price does not Exist then first Insert the price & then Update the other tables
            else
            {
                //If Price is not exist then firsrt insert the price
                common cm2 = new common();
                string InsertBuyingPrice = "insert into RS_Inventory_Buying_Master (buying_price,latest) values ('" + UpdatedPrice + "','0')";
                cm2.TableInsert(InsertBuyingPrice);
                cm2.con.Close();

                //After inserting the price find the buying product Id of that price
                common cm3 = new common();
                string FindingUpdatedPrice = "select * from RS_Inventory_Buying_Master where buying_price ='" + UpdatedPrice + "'";
                cm3.TableConnect(FindingUpdatedPrice);

                //Now finallly after finding the buying price id by using the inserted Price. Now update the buying product id of PIIM
                if (cm3.rs.Read())
                {
                    string BuyingProductId = cm3.rs["buying_product_id"].ToString();

                    //Now finallly after finding the buying price id. Now update the buying product id of PIIM
                    common cm4 = new common();
                    string UpdatePIIM = "update RS_Purchase_Invoice_Info_Master set buying_product_id = '" + BuyingProductId + "', qty = '" + UpdatedQuantity + "',tax_id ='" + TaxDetails + "',picreated = 1 where purchase_order_no = '" + PO + "' and product_id = '" + ProductId + "'";
                    cm4.TableInsert(UpdatePIIM);
                    cm4.con.Close();
                }
                cm3.con.Close();

            }

任何建议都将受到赞赏。

Answer 1

declare @BuyingProductId varchar(50)
set @BuyingProductId = (select isnull(buying_product_id, '') from RS_Inventory_Buying_Master where buying_price = @UpdatedPrice)

if(@BuyingProductId <> '')
begin
   --your update query
   update RS_Purchase_Invoice_Info_Master set buying_product_id = @BuyingProductId , 
   qty = @UpdatedQuantity ,tax_id = @TaxDetails ,picreated = 1 
   where purchase_order_no = @PO 
   and product_id = @ProductId ;
end
else
begin
    --your insert query
   insert into RS_Inventory_Buying_Master (buying_price,latest) 
   values (@UpdatedPrice,'0')
    set @BuyingProductId = (SELECT @@IDENTITY)  
   update RS_Purchase_Invoice_Info_Master set buying_product_id = @BuyingProductId , 
   qty = @UpdatedQuantity ,tax_id = @TaxDetails ,picreated = 1 
   where purchase_order_no = @PO 
   and product_id = @ProductId ;    
end

检查此查询。请确保创建新的sp并提供@UpdatedQuantity等所有的值。

如何读取SQL中的值

1 个答案: