mysql - 在 MySQL 中的选择查询期间将整数转换为文本

Question

我正在尝试选择一个整数字段作为文本，但我不知道该怎么做。

1代表low、2代表medium和3代表hi。_

Answer 1

你可以这样做CASE WHEN

SELECT (CASE WHEN column = 1 THEN "low"
             WHEN column = 2 THEN "medium"
             WHEN column = 3 THEN "high"
        END) AS value
FROM table_name;

Answer 2

SELECT CASE intfield
        WHEN 1 THEN 'low'
        WHEN 2 THEN 'medium'
        WHEN 3 THEN 'hi'       
    END AS inttext
FROM table

Answer 3

Select 
CASE WHEN field = 1 then 'low' 
WHEN field = 2 then 'medium'
WHEN field = 3 then 'hi'
END as Col
from yourtable;