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จะนับจำนวน นักฟุตบอลแต่ละคนที่มาซ้อม ในแต่ละเดือนยังไงหรอครับ |
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อยากเห็นใน Database ด้วยคับว่าเก็บข้อมูลยังไง จะได้แนะนำถูกคับ
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Date :
2014-02-01 23:47:51 |
By :
tomrambo |
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เก็บ 3 คอลัมเองครับ เลยคิดว่าจะดึง ปีกับ เดือน แล้ว ใช้ select box เลือก ปี เดือน แล้วคำนวณ เป็นรายคนไปว่า เดือนนี้
ใครมา กี่ครั้ง มั้ง พอจะมีตัวอย่างคล้ายๆกรณีนี้ไหมครับ
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Date :
2014-02-02 11:42:29 |
By :
kanokpong |
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Code (PHP)
SELECT Id_Pla,count(Id_Pla) as number FROM tb_name WHERE dateformat(Date_pty,'%Y-%m') = '2014-02' group by Id_Pla
ใช้ฟังก์ชัน count, dateformat, group by มาช่วยครับ
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ประวัติการแก้ไข 2014-02-02 17:17:13
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Date :
2014-02-02 17:14:29 |
By :
iieszz |
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คห. บน ตอบไปหมดแล้ว ตามนั้นคับ 
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Date :
2014-02-02 19:49:07 |
By :
tomrambo |
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Load balance : Server 00
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