Question

我需要在MySQL表格中显示特定学生的月度出勤报告。我需要下面的结果，

我的数据库中有考勤表，如下图所示：

我想从我的考勤表中获取数据，其中备注＆＃39; 1＆＃39;意味着＆＃39;现在＆＃39; 如下：我需要MySQL查询来获取如下所示的数据

请任何人帮我写查询

我的查询是

SELECT YEAR(att_date) AS y, MONTH(att_date) AS m, COUNT(DISTINCT att_date) FROM attendance WHERE class_id=11 AND student_id=15 GROUP BY y, m

但是没有得到预期的结果，如下所示

student-ID-15

CLASS   STUDENT_ID  YEAR    MONTH   TOTAL_CLASSES   TOTAL_PRESENT

11      15      2016    April         21             20
11      15      2016    May           25             25
11      15      2016    June          30             29
11      15      2016    July          18             18
11      15      2017    January       28             28

Answer 1

SQLFiddle：here

SELECT 
    YEAR(att_date) AS `YEAR`, 
    MONTHNAME(att_date) AS `MONTH`, 
    COUNT(DISTINCT att_date) as TOTAL_CLASSES,
    COUNT(DISTINCT IF(remarks != '0' 
                      AND class_id=@class_id
                      AND student_id=14, 
                      att_date, NULL)) as TOTAL_PRESENT
FROM attendance CROSS JOIN (SELECT @class_id :=
                            (SELECT class_id FROM attendance WHERE student_id = 14 LIMIT 1)) param
GROUP BY `YEAR`, MONTH(att_date);

Answer 2

http://sqlfiddle.com/#!9/ae54c95/1

  <select class="form-control" data-ng-model="model" data-ng-options="availabledevice.model for availabledevice in availabledevices|filter:make.make" required></select>

如何通过mysql查询从考勤表中获取月度考勤报告？

2 个答案: