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สงสัยการ Sort ตัวเลข มากกว่า น้อยกว่า ( > < ) MySQL ครับ |
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สงสัยการ Sort ตัวเลข มากกว่า น้อยกว่า ( > < ) MySQL ครับ
ผมลอง Sort ใน MySQL แต่ได้เพียง A-Z , Z-A , 1-9 , 9-1 ครับ
ผมอยากได้เงื่อนไขแบบนี้ครับ
สมมุติว่ามี 2 คอลัมน์
ให้ คอลัมน์ที่ 1 Sort A-Z , Z-A , 1-9 , 9-1
และ คอลัมน์ที่ 2 Sort มากกว่า น้อยกว่า
อยู่ในเพจเดียวกัน และวิธี Sort ให้คลิกที่หัวชื่อคอลัมน์กลับไปกลับมาครับ
ผมลองทำจากตัวอย่างของพี่วินมาครับ จะเป็นการเรียง Sort A-Z , Z-A , 1-9 , 9-1 แบบอย่างเดียวครับ
PHP MySQL : Sort Data
https://www.thaicreate.com/community/php-sorting-column-mysql.html
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ช่วยหน่อยนะครับ 
Tag : PHP, CakePHP
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ประวัติการแก้ไข 2012-09-21 13:20:30 2012-09-21 13:27:27
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Date :
2012-09-21 13:19:12 |
By :
nattkhanesha |
View :
1823 |
Reply :
3 |
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SELECT *FROM xls_sales_data ORDER BY (P_NUMBER ASC,QTY_SHIPPED DESC );
เปลี่ยนเอาเองนะ ASC คือ น้อยไปหามาก
DESC คือมากไปหาน้อย
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Date :
2012-09-21 13:26:55 |
By :
sambrazil |
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ผมใช้โค๊ดชุดเดียวกับพี่วินอยู่ครับ ไม่ทราบว่าให้แก้ไขตรงไหนบ้างครับ 
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Code (PHP)
$objConnect = mysql_connect("localhost","root","123456") or die("Error Connect to Database");
$objDB = mysql_select_db("excel_db");
$strSQL = "SELECT * FROM customer ";
$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
$Num_Rows = mysql_num_rows($objQuery);
$Per_Page = 30; // Per Page
$Page = $_GET["Page"];
if(!$_GET["Page"])
{
$Page=1;
}
$Prev_Page = $Page-1;
$Next_Page = $Page+1;
$Page_Start = (($Per_Page*$Page)-$Per_Page);
if($Num_Rows<=$Per_Page)
{
$Num_Pages =1;
}
else if(($Num_Rows % $Per_Page)==0)
{
$Num_Pages =($Num_Rows/$Per_Page) ;
}
else
{
$Num_Pages =($Num_Rows/$Per_Page)+1;
$Num_Pages = (int)$Num_Pages;
}
$strSort = $_GET["sort"];
if($strSort == "")
{
$strSort = "CustomerID";
}
$strOrder = $_GET["order"];
if($strOrder == "")
{
$strOrder = "ASC";
}
$strSQL .=" order by ".$strSort." ".$strOrder." LIMIT $Page_Start , $Per_Page";
$objQuery = mysql_query($strSQL);
$strNewOrder = $strOrder == 'DESC' ? 'ASC' : 'DESC';
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Date :
2012-09-21 13:33:22 |
By :
nattkhanesha |
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ผมลองคอลัมน์เดียวยังไม่ถูกเลยครับ
เป็นที่ "จุดทศนิยม" (.) ป่าวครับ 
SELECT FREIGHT FROM xls_sales_data ORDER BY FREIGHT DESC
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ประวัติการแก้ไข 2012-09-21 13:51:11
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Date :
2012-09-21 13:43:49 |
By :
nattkhanesha |
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Load balance : Server 05
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