mysql数据库中某项其中一个值在该项排第几,百分几

SQL 如下:

 sql 1.

SELECT X.USER_ID, X.TOTAL_NO, X.ORDER_NO, X.ORDER_NO / X.TOTAL_NO AS PERCENTAGE_NO
FROM (SELECT @rowNum := @rowNum + 1 AS ORDER_NO, @rowCount AS TOTAL_NO, USER_ID
    FROM T_SD_USER, (SELECT @rowNum := 0
        ) b, (SELECT @rowCount := (
                SELECT COUNT(*)
                FROM T_SD_USER
                )
        ) c
    ORDER BY USER_ID DESC
    ) X
WHERE USER_ID = 3008

sql2.

SELECT X.COMMENT_ID, X.TOTAL_NO, ORDER_NO, IFNULL(X.ORDER_NO / X.TOTAL_NO, 1) AS PERCENTAGE_NO
FROM (SELECT @rowNum := @rowNum + 1 AS ORDER_NO, @rowCount AS TOTAL_NO, t.COMMENT_ID, t.COMMENT_SPENDING
    FROM T_SD_COMMENT t, (SELECT @rowNum := 0
        ) b, (SELECT @rowCount := (
                SELECT COUNT(*)
                FROM T_SD_COMMENT
                WHERE to_days(CREATE_TIME) >= to_days(now())
                )
        ) c
    ORDER BY CREATE_TIME DESC
    ) X
WHERE COMMENT_ID = 15

 SELECT X.COMMENT_ID, X.TOTAL_NO, MAX(X.ORDER_NO) AS ORDER_NO , IFNULL(MAX(X.ORDER_NO )/ X.TOTAL_NO, 1) AS PERCENTAGE_NO   
     FROM (SELECT @rowNum := @rowNum + 1 AS ORDER_NO, @rowCount AS TOTAL_NO, t.COMMENT_ID
         FROM T_SD_COMMENT t, (SELECT @rowNum := 0  
             ) b, (SELECT @rowCount := (  
                     SELECT COUNT(*)  
                     FROM T_SD_COMMENT  
                     WHERE to_days(CREATE_TIME) >= to_days(now())  
                     )  
             ) c  
          WHERE to_days(t.CREATE_TIME) >= to_days(now()) and t.COMMENT_SPENDING < 111  ORDER BY t.COMMENT_SPENDING ,t.COMMENT_ID  
         ) X  

       

 demo4 :

SELECT SUM(TODAY_USER_SHOW_DETAIL_COUNT), COUNT(*) AS TODAY_SHOW_DETAIL_USER_COUNT, @descRowNum AS CHOWN_ORDER_NO, @descSumSpending AS CHOWN_SUM_SPENDING
FROM (SELECT IF(USER_ORDER.USER_ID = 3005, @descRowNum := (@rowNum := @rowNum + 1), @rowNum := @rowNum + 1) AS ORDER_NO, IF(USER_ORDER.USER_ID = 3005, @descSumSpending := USER_ORDER.TODAY_USER_SPENDING, USER_ORDER.TODAY_USER_SPENDING) AS TODAY_USER_SPENDING, USER_ORDER.USER_ID, USER_ORDER.TODAY_USER_SHOW_DETAIL_COUNT
    FROM (SELECT @rowNum := 0
        ) R, (SELECT user_detail.USER_ID, COUNT(user_detail.USER_ID) AS TODAY_USER_SHOW_DETAIL_COUNT, SUM(user_detail.COMMENT_SPENDING) AS TODAY_USER_SPENDING
        FROM (SELECT @rowNum := 0
            ) R, (SELECT USER_ID, COMMENT_SPENDING
            FROM T_SD_COMMENT
            WHERE TO_DAYS(CREATE_TIME) >= TO_DAYS(NOW())
            UNION
            SELECT 3005, 444.4
            ) user_detail
        GROUP BY user_detail.USER_ID
        ORDER BY TODAY_USER_SPENDING
        ) USER_ORDER
    ) O