Question

我试图通过查询获得一些结果，范围从-50到+50。现在根据我需要在栏目评论中有价值的范围。

条件是

    >=-50 and < -30 = very negative
    =< -30 and < -10 = negative
    =< -10 and < +10 = neutral
    =< +10 and < +30 = positive
    =< +30 and < +50 = very positive

我想要获得的输出是：

range  comment
-45     very negative
-20     negative

我可以获得价值，如何根据它设置评论。

Answer 1

您的查询是：

SELECT * FROM your_table WHERE range BETWEEN -50 AND 50;

Answer 2

您可以使用CASE语法。

udf[String, String]((session_user_id:String)...

Answer 3

这听起来像是要使用SELECT range, CASE WHEN range BETWEEN -50 AND -30 THEN 'very negative' WHEN range BETWEEN -30 AND -10 THEN 'negative' WHEN range BETWEEN -10 AND 10 THEN 'neutral' WHEN range BETWEEN 10 AND 30 THEN 'positive' WHEN range BETWEEN 30 AND 50 THEN 'very positive' END AS comment FROM yourTable表达式：

<?php
$workid     = @trim(stripslashes($_POST['workid'])); 
$customerid       = @trim(stripslashes($_POST['cusomterid'])); 
$file = file('WEBDATA.csv');
?>
<table border="1">
    <tr>
        <td> Worksheet ID </td>
        <td> Customer ID</td>
        <td> Device Name</td>
        <td> Serial Number</td>
        <td> Manufacturer</td>
        <td> Expected Price </td>
        <td> Gross Final Price </td>
        <td> Repairing status </td>
    <tr>
<?php
foreach($file as $line){
    list($workid,$customerid,$devicename,$devicesnumber,$manufactured,$offer,$grosspay,$status)= explode(";",$line);
?>
        <td><?php echo "$workid" ?></td>
        <td><?php echo "$customerid" ?>   </td>
        <td><?php echo "$devicename" ?>   </td>
        <td><?php echo "$devicesnumber" ?>   </td>
        <td><?php echo "$manufactured" ?>   </td>
        <td><?php echo "$offer" ?>   </td>
        <td><?php echo "$grosspay" ?>   </td>
        <td><?php echo "$status" ?>   </td>             
<?php   } ?>
</table>

如何使用mysql中的条件

3 个答案: