[英]Join two SQL select queries of same table and filter
我有一张医生桌,下面提供以下各栏,我想使用提交按钮按日期获取详细信息。 但是我无法过滤查询同一表的详细信息。 我将日期转换为特定日期,并通过传输上一页的session变量的值并将其在两个SQL查询中实现,将其存储在$day
变量中,并将id存储在$available
变量中。 谁能指导我? 对于任何打字错误,我们深表歉意。
医生:
id doctorname date1 day1 day2 day3 day4 day5 day6 day7
1 arvind 2018-05-29
2 sonal 0000-00-00 mon tue wed thu fri sat sun
3 harry 0000-00-00 mon tue wed thu
<?php
session_start();
include 'connect.php';
if(isset($_GET['submit'] ))
{ $date=$_GET['date'];
$available= $_SESSION['available'];
$day=date('l', strtotime($date));
$sql=mysqli_query($mysqli,"SELECT id,specilization,doctorName,
docFees, starttime, endtime,date1 FROM doctors WHERE
id= '$available' AND cast(date1 as date) = '$date'" )
UNION
SELECT id,specilization,doctorName, docFees, starttime, endtime,date1
FROM doctors WHERE id= '$available' AND DAY1='$day' OR DAY2='$day' AND
DAY3='$day' OR DAY4='$day' AND DAY5='$day' OR DAY6='$day' OR
DAY7='$day'");
$row = mysqli_fetch_array($sql);
If(empty($_GET['date']))
{ echo "ENTER DATE PlEASE";}
elseif($row1>1)
{echo "Day:". $day;
echo "<br>";
?> <tr>
<td><?php echo $row1['id'];?></td>
<td><?php echo $row1['specilization'];?></td>
<td><?php echo $row1['doctorName'];?></td>
<td><?php echo $row1['docFees'];?></td>
<td><?php echo $row1['starttime'];?></td>
<td><?php echo $row1['endtime'];?></td>
<td><?php echo $_SESSION['bdate'];?></td>
</tr>
</table>
<?php }?>
您不需要UNION
,只需使用OR
:
$sql=mysqli_query($mysqli,"
SELECT id,specilization,doctorName, docFees, starttime, endtime,date1
FROM doctors
WHERE id = '$available'
AND (cast(date1 as date) = '$date'
OR '$day' IN (day1, day2, day3, day4, day5, day6, day7))");
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.