Hi this is my first post i am hoping its the write place. I have a page in which a customer can either add a new product and its rate as well as update an existing product. What i am trying to achieve is get the live rate of the product, when a user goes to order the product. Each existing product can be updated twice in a year either in period 1 or period 2, therefore there is a possibility that a rate hasnt been updated which means the price should be the alst updated rate. Therefore the following are the possible rates which the product can have; dbo.tblRateSchedule.Rate - This will be the rate when a product is new and has just been added, therefore no previous rates. dbo.tblHistoricalRateSchedule.Rate2007Period2- Most existing products are still having this rate as their latest rate. dbo.tblRateSchedule.RateScheduleYear2008Period1Rate - This is the rate when a rate has been updated in 2008 period 1 dbo.tblRateSchedule.RateScheduleYear2008Period2Rate - This is the rate when a rate has been updated in 2008 period 2What i am trying to do is get the latest rate as it stands in the system, based on the above scenarios. This what I have so far, i tried to use the ISNULL, however that didnt work for probably because there are four instances. The following is the "view" which returns the rates.SELECT dbo.tblWorkSchedule.Survey_ID, dbo.tblWorkSchedule.WorkSchedule_ID, dbo.tblWorkSchedule.WorkScheduleType_ID, dbo.tblWorkSchedule.ScheduleStatus_ID, dbo.tblWorkSchedule.Qty, dbo.tblRateScheduleUnit.Unit, dbo.tblWorkType.Work_Type_Description, dbo.tblRateScheduleType.Type, dbo.tblWorkSchedule.MA_Code, dbo.tblRateSchedule.SOR_Code, dbo.tblSurvey.PropertyYear_ID, dbo.tblSurvey.PropertyPeriod_ID, ISNULL(dbo.tblWorkSchedule.Valuation, 0) AS Valuation, dbo.tblSurvey.WorkScheduleOverallStatus_ID, dbo.tblSurvey.VariationOverallStatus_ID, dbo.tblWorkSchedule.WorkScheduleLocation_ID, dbo.tblWorkSchedule.Inserted_DateTime, CASE IsNull(CONVERT(varchar, dbo.tblWorkSchedule.Figure_Description), '') WHEN '' THEN dbo.tblRateSchedule.DESCRIPTION ELSE dbo.tblWorkSchedule.Figure_Description END AS DESCRIPTION, CASE IsNull(CONVERT(varchar, dbo.tblWorkSchedule.Figure_Description), '') WHEN '' THEN tblRateSchedule.SWT ELSE tblWorkSchedule.WorkScheduleLocation_ID END AS SWT, dbo.tblCategory.Category, dbo.tblScheduleStatus.Schedule_Status, CASE isnull(dbo.tblWorkSchedule.Rate, 0) WHEN 0 THEN dbo.tblRateSchedule.Rate ELSE tblWorkSchedule.Rate END AS Rate, dbo.tblRateSchedule.WorkType_ID, dbo.tblWorkSchedule.UpliftedRate AS UPLIFTED_RATE, CASE dbo.tblWorkSchedule.WorkScheduleType_ID WHEN 1 THEN CASE IsNull(dbo.tblSurvey.WorkScheduleOverallStatus_ID, 0) WHEN 4 THEN dbo.tblWorkSchedule.UpliftedRate ELSE dbo.GetSWT_PropertyYearPeriodRate(IsNull(tblRateSchedule.WorkType_ID, 0), tblWorkSchedule.WorkSchedule_ID, tblSurvey.PropertyYear_ID, tblSurvey.PropertyPeriod_ID) END WHEN 2 THEN CASE IsNull(dbo.tblSurvey.VariationOverallStatus_ID, 0) WHEN 4 THEN dbo.tblWorkSchedule.UpliftedRate ELSE dbo.GetSWT_PropertyYearPeriodRate(IsNull(tblRateSchedule.WorkType_ID, 0), tblWorkSchedule.WorkSchedule_ID, tblSurvey.PropertyYear_ID, tblSurvey.PropertyPeriod_ID) END END AS UpliftedRate, CASE IsNull(dbo.tblWorkSchedule.Rate, 0) WHEN 0 THEN CONVERT(decimal(18, 2), IsNull(dbo.tblRateSchedule.Rate, 0)) * CONVERT(decimal(19, 2), IsNull(dbo.tblWorkSchedule.Qty, 0)) ELSE CONVERT(decimal(18, 2), IsNull(dbo.tblWorkSchedule.Rate, 0)) * CONVERT(decimal(19, 2), IsNull(dbo.tblWorkSchedule.Qty, 0)) END AS Total, dbo.tblCompany.IsContractor, dbo.tblCompany.Percentage AS Constructor_Percentage, dbo.tblCompany.Percentage AS Contractor_Percentage, CASE IsNull(dbo.tblWorkSchedule.Rate, 0) WHEN 0 THEN ((IsNull(tblCompany.Percentage, 0) / 100 * (CONVERT(decimal(18, 2), dbo.tblRateSchedule.Rate) * CONVERT(decimal(19, 2), dbo.tblWorkSchedule.Qty))) + (CONVERT(decimal(18, 2), dbo.tblRateSchedule.Rate) * CONVERT(decimal(19, 2), dbo.tblWorkSchedule.Qty))) ELSE ((IsNull(tblCompany.Percentage, 0) / 100 * (CONVERT(decimal(18, 2), dbo.tblWorkSchedule.Rate) * CONVERT(decimal(19, 2), dbo.tblWorkSchedule.Qty))) + (CONVERT(decimal(18, 2), dbo.tblWorkSchedule.Rate) * CONVERT(decimal(19, 2), dbo.tblWorkSchedule.Qty))) END AS After_Lift, ISNULL(dbo.tblSurvey.Survey_Completed, 0) AS Survey_Completed, LTRIM(RTRIM(dbo.tblUser.User_Title)) + ' ' + LTRIM(RTRIM(dbo.tblUser.User_Forename)) + ' ' + LTRIM(RTRIM(dbo.tblUser.User_Surname)) AS Inserted_By, dbo.tblWorkSchedule.Inserted_By AS InsertedBy_ID, ISNULL(dbo.tblUploadedFile.File_Name, '') AS File_Name, dbo.tblWorkSchedule.Variation_ID, dbo.tblHistoricalRateSchedule.Rate2006Period1, dbo.tblHistoricalRateSchedule.Rate2006Period2, dbo.tblHistoricalRateSchedule.Rate2007Period1, dbo.tblHistoricalRateSchedule.Rate2007Period2, dbo.tblHistoricalRateSchedule.Rate2008Period1, dbo.tblRateSchedule.RateScheduleYear2008Period1Rate, dbo.tblRateSchedule.RateScheduleYear2008Period2RateFROM
Retrieving data based on criteria
Posted - 2008-05-31 : 10:40:05
