php mysql“根据日期显示事件名称”

Question

如何根据日期显示事件表中的事件名称。

这是我的代码iwant to add the script is this code。

$sql = "
SELECT `log`.id, (student.id) as ids, student.name,event, student.`year`, student.section, `log`.date_log, `log`.time_log, `log`.ampm, `log`.status_log, section.sec_name 
FROM `log` 
  Inner Join student ON student.cardcode = `log`.stud_id 
  Inner Join section ON section.id = student.section 
order by `log`.id DESC limit $start, $per_page";

Answer 1

使用这个sql：

LinearLayout

Answer 2

试试这个：

UPDATE `log` SET `event` = (SELECT `event_name` FROM `event` WHERE `date` = log.date_log)

修改

基于PHP编码：

UPDATE log AS L 
INNER JOIN event AS E ON L.date_log = E.date
SET L.event = E.event_name