DATETIME) IF ((@MinPopulationYear IS NULL) OR (@MaxPopulationYear IS NULL)) BEGIN - Remplir de @NewMinPopulationYear à @NewMaxPopulationYear ...

] DATETIME) 
        
        IF ((@MinPopulationYear IS NULL) OR (@MaxPopulationYear IS NULL))
            BEGIN
                -- Remplir de @NewMinPopulationYear à @NewMaxPopulationYear    
                SELECT @time = @NewMinPopulationYear
                WHILE @time < DATEADD(Year, 1, @NewMaxPopulationYear)
                BEGIN
                    INSERT INTO #temp
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