|
 |
|
ใช้คำสั่ง Group by แต่มันไม่รวมค่าให้ ("SELECT type_leave,SUM(qty_leave) AS Sumqty_leave FROM GROUP BY type_leave |
|
 |
|
|
 |
 |
|
รวมค่าอะไรครับ ??
แล้วมันออกมายังไงล่ะครับ แล้วจะให้ออกมาเป็นยังไงเหรอ
|
 |
 |
 |
 |
Date :
2009-02-11 13:08:11 |
By :
pjgunner |
|
 |
 |
 |
 |
|
|
 |
 |
|
 |
 |
 |
|
|
 |
 |
|
<b>ประเภทการลา</b> <b>จำนวน</b> <b>วันลาทั้งหมด</b>
ลาพักร้อน 3 0
ลาพักร้อน 5 0
ลาป่วย 1 0
คือว่าต้องการรวมประเภทการลาที่เป็นแบบเดียวกันว่ามีลาทั้งหมดไปแล้วกี่วันนะค่ะให้แสดงตรงวันลาทั้งหมดค่ะแต่ใส่โค๊ดไปแล้วก็ไม่รวมให้นะค่ะขึ้นเป็นศูนย์ตลอด
|
 |
 |
 |
 |
Date :
2009-02-11 13:49:11 |
By :
deejanghoos |
|
 |
 |
 |
 |
|
|
 |
 |
|
 |
 |
 |
|
|
 |
 |
|
ลืม _ ตรง type leave ครับ
|
 |
 |
 |
 |
Date :
2009-02-11 20:35:26 |
By :
pjgunner |
|
 |
 |
 |
 |
|
|
 |
 |
|
 |
 |
 |
|
|
 |
 |
|
คุณ pjgunner ค่ะยังไม่ได้เลยค่ะไม่ทราบว่าใส่ถูกหรือป่าวโค๊ดนี้ใส่ในส่วน record ใช่หรือป่าวค่ะ
|
 |
 |
 |
 |
Date :
2009-02-11 20:52:51 |
By :
deejanghoos |
|
 |
 |
 |
 |
|
|
 |
 |
|
 |
 |
 |
|
|
 |
 |
|
ทำได้แล้วค่ะ
|
 |
 |
 |
 |
Date :
2009-02-12 19:58:56 |
By :
deejanghoos |
|
 |
 |
 |
 |
|
|
 |
 |
|
 |
 |
 |
|
|
 |
 |
|
อยากทราบว่า
1. หน้าที่ และผลลัพธ์ ของคำสั่ง (phase) Order by และ Group by หน่อยข้ะ
2. หน้าที่ และ ความรับผิดชอบของ DA (Data Administrators) และ DBA (Database Administrators )
อยากทราบ ด่วน ๆๆๆๆ
คัยทราบ กรุณาบอกหน่อยนะข้ะ
ขอบคุณมากข้ะ
|
 |
 |
 |
 |
Date :
2009-10-03 21:17:43 |
By :
nanJaZZ |
|
 |
 |
 |
 |
|
|
 |
 |
|
 |
 |
 |
|
|
 |
 |
|
Order by เป็นการ เรียงลำดับข้อมูล ตามที่เราต้องการครับ
Group by เป็นการ แสดงข้อมูลออกมาแบบ ไม่ซ้ำกันของข้อมูล
DBA คือคนที่ดูแล Database ในด้านต่าง ๆ ที่ไม่ใช้ Developer
ถ้าผิดพลาดประการใดขออภัยด้วยนะครับ
|
 |
 |
 |
 |
Date :
2009-10-05 08:14:57 |
By :
taobsd |
|
 |
 |
 |
 |
|
|
 |
 |
|
 |
 |
 |
|
|
 |
 |
|
  
|
 |
 |
 |
 |
Date :
2009-10-12 11:43:52 |
By :
apicha31 |
|
 |
 |
 |
 |
|
|
 |
 |
|
 |
 |
|
|
|

|
Load balance : Server 01
|