为所附查询提取分钟

Question

我有以下查询工作正常。

但是，我希望附件中显示的列仅将时间显示为“分钟”。

请有人可以建议我该怎么做吗？ 再次感谢您的帮助！

USE CBS_AFRICA_LIVECOPY

SELECT FOLIO_NUMBER, FORMAT(ORDER_ENTRY_TIME, 'hh:MM') AS ORDER_ENTRY_TIME, 
    FORMAT(START_LOAD_TIME, 'hh:MM') as START_LOAD_TIME, 
    (ORDER_ENTRY_TIME - START_LOAD_TIME) AS STAGING_MINUTES, 
    (TERM_END_LOAD_TIME - START_LOAD_TIME) AS LOADING_MINUTES,
    (TERM_END_LOAD_TIME - ORDER_ENTRY_TIME) AS TERMINAL_MINUTES,
    FORMAT(TERM_END_LOAD_TIME, 'hh:MM') as TERM_END_LOAD 
FROM ORDERS    
WHERE LOADING_TERMINAL_ID = '11011'

Answer 1

您应该使用DATEPART()从DATETIME中提取分钟：

USE CBS_AFRICA_LIVECOPY;

SELECT FOLIO_NUMBER, FORMAT(ORDER_ENTRY_TIME, 'hh:MM') AS ORDER_ENTRY_TIME, 
    FORMAT(START_LOAD_TIME, 'hh:MM') as START_LOAD_TIME, 
    DATEPART(MINUTE, (ORDER_ENTRY_TIME - START_LOAD_TIME) AS STAGING_MINUTES, 
    DATEPART(MINUTE, (TERM_END_LOAD_TIME - START_LOAD_TIME)) AS LOADING_MINUTES,
    DATEPART(MINUTE, (TERM_END_LOAD_TIME - ORDER_ENTRY_TIME)) AS TERMINAL_MINUTES,
    FORMAT(TERM_END_LOAD_TIME, 'hh:MM') as TERM_END_LOAD 
FROM ORDERS    
WHERE LOADING_TERMINAL_ID = '11011';

如果您使用的是MySQL，则可以使用EXTRACT函数。