2016-11-15 72 views
2

我有一個表格「產品」,它包含如下所示的值。從表格組中獲取所有值一個字段

column-a  column-b  column-c  column-d .... 
    1023   57   value1  value2 .... 
    1024   58   value3  value4 .... 
    1025   58   value5  value6 .... 
    1026   57   value7  value8 .... 
    1027   59   value9  value10 .... 
    1028   60   value11  value12 .... 
    1029   59   value13  value14 ....  

從這張表我想要按列-b顯示如下組的結果。

陣列

[0] => stdClass Object 
    (
     [column-a] => 1023 
     [column-b] => 57 
     [column-c] => value1 
     [column-d] => value2 
     . 
     . 
     . 
    ) 
    [1] => stdClass Object 
    (
     [column-a] => 1024 
     [column-b] => 58 
     [column-c] => value3 
     [column-d] => value4 
     . 
     . 
     . 
    ) 
    [2] => stdClass Object 
    (
     [column-a] => 1027 
     [column-b] => 59 
     [column-c] => value9 
     [column-d] => value10 
     . 
     . 
     . 
    ) 

    [3] => stdClass Object 
    (
     [column-a] => 1028 
     [column-b] => 60 
     [column-c] => value11 
     [column-d] => value12 
     . 
     . 
     . 
    ) 

    [4] => stdClass Object 
    (
     [column-a] => 1026 
     [column-b] => 57 
     [column-c] => value7 
     [column-d] => value8 
     . 
     . 
     . 
    ) 
    [5] => stdClass Object 
    (
     [column-a] => 1025 
     [column-b] => 58 
     [column-c] => value5 
     [column-d] => value6 
     . 
     . 
     . 
    ) 
    [6] => stdClass Object 
    (
     [column-a] => 1029 
     [column-b] => 59 
     [column-c] => value13 
     [column-d] => value14 
     . 
     . 
     . 
    ) 

如何通過柱-b選擇表羣組的所有表中的值。

我試圖像下面,但其顯示數值列B的唯一一次

SELECT * FROM products GROUP BY column-b; 

有人幫助檢索與相同的所有數據。提前致謝!

回答

0

可以使用查詢,如下所示:

SELECT column-a,column-b,GROUP_CONCAT(column-c SEPARATOR ' , '),GROUP_CONCAT(column-d SEPARATOR ' , ') FROM products GROUP BY column-b 

它將返回的與用於列c和列d

多個值不同COLUMN-B值的記錄陣列
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