case 表達式中的舍入

Question

我有一個案例狀態，我想將舍入應用於最終結果。 該列是導入字符串。 21.16800000000000。 我想把它四舍五入到 2。我試圖使用 Round(21.1680000000,2)。 這能做到嗎？

 SELECT   ITMMASTER.ITMREF_0,
          YPRIMAT.ITMREF_0,
          BASPRI_0,
          ITMMASTER.TSICOD_6,
           ITMMASTER.TCLCOD_0,
  (BASPRI_0*2.205+CASE
                 WHEN ITMMASTER.TCLCOD_0 = '32221'  --Multipying 2.205 times 
  1.25 (packaging per pound)
                       THEN '2.75625'
                 WHEN ITMMASTER.TCLCOD_0 = '32224' --Multipying 2.205 times 
  0.75 (packaging per pound)
                       THEN '1.65375'
                 WHEN ITMMASTER.TCLCOD_0 = '13221' --
                       THEN '2.75625'
                 WHEN ITMMASTER.TCLCOD_0 = '13241'
                       THEN '1.65375'
                 WHEN ITMMASTER.TCLCOD_0 = '36221'
                       THEN '6.7473'
                 WHEN ITMMASTER.TCLCOD_0 ='36224'
                       THEN '5.6448'
                 WHEN ITMMASTER.TCLCOD_0 = '41211'
                       THEN '1'
                 END) AS Importstring

  FROM LIVE.YPRIMAT
  INNER JOIN LIVE.ITMMASTER  ON YPRIMAT.ITMREF_0 = ITMMASTER.ITMREF_0

Answer 1

你可以用round()包圍表達式：

round(baspri_0_2 * 2.205 + case .. end, 2) as ImportString

或者，可能更好，您可以cast()轉換為具有兩個小數位的小數：

cast(baspri_0_2 * 2.205 + case .. end as decimal(30, 2)) as ImportString