Sql var char每次都去其他地方

Question

我正在尝试将2更改为Complete，2是varchar值 但每次进入else子句

CASE [consent_complete]
  WHEN  '2'  THEN 'Complete'  
  ELSE 'IN Complete'
END AS  'Complete?'

Answer 1

我怀疑你的数据最后有空格和/或\0字符：

SELECT ...
   CASE  
     WHEN LEFT(LTRIM(RTRIM([consent_complete])),1) = '2' THEN 'Complete'  
     ELSE 'Incomplete'
   END AS  [Complete?]
FROM ...

此外，您应该清理数据TRIM空格和REPLACE \0字符。