如何选择具有相同值的表行？

Question

我有一张这样的表：

我想选择具有相同代码的行，并在我的页面中通过php显示它们，例如代码333306b4af587：

怎么做？

Answer 1

使用可以使用此 你会有

SELECT row FROM table WHERE value1= value2;

如果你想配对两个相同的值

SELECT row FROM Qustion1, Question2 WHERE value1 <> value2  AND value1 = value2

Answer 2

<?php
include 'db_inc.php';
 $code=mysqli_query($dbCnn,"select distinct uniqid,questionid from answers")        or die(mysqli_error($dbCnn));

echo "<table border='1'> ";

while($row=mysqli_fetch_array($code)){

$result=mysqli_query($dbCnn,"select * from answers where   uniqid='$row[uniqid]' and formid=$form" )or die(mysqli_error($dbCnn));
  echo "<tr>";
  while ($responses=mysqli_fetch_array($result)){
      echo "<td>$responses[answer]</td>";

  }
 echo "</tr>";
}

 echo "</table>";