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У меня есть прогноз алгоритмКак увеличить количество лет в SQL и в отчете SSRS?
WITH CTE_AllIDs AS
(
SELECT TOP 22 ID = ROW_NUMBER() OVER (ORDER BY (SELECT NULL))
FROM sys.columns
)
SELECT
c.ID
,OrderMonth = CASE WHEN r.ID IS NOT NULL
THEN r.OrderMonth
-- elaborate function to get the short month name and year
ELSE ordermonth + 1
END
,OrderQuantity
,Trend
,Forecast = CASE WHEN Trend IS NOT NULL AND c.ID <> (SELECT MAX(ID) FROM #Temp_Regression)
THEN NULL
-- For the last actual value (September in this example), we want forecast to have the same
-- value as the trendline (instead of NULL). This prevents a gap in the line charts in SSRS.
WHEN Trend IS NOT NULL AND c.ID = (SELECT MAX(ID) FROM #Temp_Regression)
THEN Trend
-- If trend is not found, it means we can calculate a forecast.
-- However, we also need to check if the month for which we calculate the forecast comes after
-- the actual values. Suppose we don't have values for January, then we don't want to calculate
-- a forecast for January as well. Only for the last 3 months of the year in this example.
WHEN Trend IS NULL AND c.ID > (SELECT MAX(ID) FROM #Temp_Regression)
THEN (@slope * (c.ID % 100)) + @intercept
ELSE NULL
END
FROM CTE_AllIDs c
LEFT JOIN #Temp_Regression r ON c.ID = r.ID;
Как я могу сделать это в значениях столбцов OrderMoth увеличивается на единицу в? 2023, 2024 и т. Д. Спасибо.
Спасибо WEI_DBA! – Ztrew