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หากผมต้องการจะเขียนโค้ด หาค่า Sumary ของฟิลด์ Status ว่ามีจำนวนเท่าไหร่ โดยให้แยกเป็น เดือนๆ ผมต้องเขียนยังไงครับ รบกวนผู้รู้ช่วยแนะนำ |
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Code (SQL)
select substring( date, 1, 7) as mnt, count(status) from table group by substring(date,1,7);
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ประวัติการแก้ไข 2015-02-25 15:54:47
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Date :
2015-02-25 15:53:49 |
By :
Chaidhanan |
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Code (PHP)
$Sql = "SELECT COUNT(status) FROM TABLE_NAME WHERE MONTH(ACTIVITY_DATE)='02'";
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Date :
2015-02-25 15:54:28 |
By :
bunchuai |
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