Question

我有一个select语句试图从数据库中选择匹配项，但在得到结果后，匹配项是单词，而不是数字。

SELECT DATA ,  
"CASE WHEN data LIKE  '%one two%' THEN 2 
ELSE CASE WHEN data LIKE '%one%' THEN 1
ELSE 0
END
END
END" AS  'matches'
FROM remember
LIMIT 0 , 30

结果：

列匹配：

"CASE WHEN data LIKE  '%love%' THEN 2" ELSE CASE W...
"CASE WHEN data LIKE  '%love%' THEN 2" ELSE CASE W...
"CASE WHEN data LIKE  '%love%' THEN 2" ELSE CASE W...

预期结果：

列匹配：

2
1
0

Answer 1

您不需要CASE多次：

SELECT CASE WHEN data LIKE  '%one two%' THEN 2 
            WHEN data LIKE '%one%' THEN 1
            ELSE 0 
            END AS  'matches'

匹配显示在单词中与mysql中的数字相对

1 个答案: