tsql - 可能带有“不喜欢”的案例陈述？

Question

我正在寻找所有不是 BA 或 BS 的本科学位（例如 BSAST）。我尝试了一个嵌套的 case 语句，但由于我对 t-sql 比较陌生，我不确定这是我的语法还是不可能。请注意，这是在 select 语句中。

SELECT
t2.ID,
t2.ACAD_PROGRAM,
'092013' AS T01,
'274842' AS T02,
REPLACE(p.SSN,'-','') AS T03,
'5' AS T04,
ap.ACPG_CIP AS T05,
CASE(t2.ACAD_PROGRAM)
  WHEN 'BA%' THEN '1'
  WHEN 'BS' THEN '2'
  ELSE (CASE
          WHEN t4.STP_DEGREE LIKE 'BA%'
          THEN '1' END)
END AS T06

Answer 1

CASE 有两种格式，为了能够使用LIKE operator，您的第一个 CASE应该是Searched Case：

SELECT t2.ID, t2.ACAD_PROGRAM, '092013' AS T01, '274842' AS T02, 
       REPLACE(p.SSN,'-','') AS T03, '5' AS T04, ap.ACPG_CIP AS T05, 
       CASE WHEN t2.ACAD_PROGRAM LIKE 'BA%' THEN '1' 
            WHEN t2.ACAD_PROGRAM = 'BS' THEN '2' 
       ELSE 
           CASE WHEN t4.STP_DEGREE LIKE 'BA%' THEN '1' END
       END AS T06
FROM yourTable