[英]How to get all similar named records in mysql
我有一個表,其中包含存儲的數據,例如:
product_name | quantity | tert
ASIZ A4 100 FOX | 20| BUYER1
CERVEZA A6 150 FOX | 15| BUYER1
ASIZ A4 150 FOX | 40| BUYER1
CERVEZA A6 11 FOX | 15| BUYER1
QUINTA A6 150 FOX | 15| BUYER2
ASIZ A4 150 FOX | 33 | BUYER2
ASIZ A6 150 FOX | 15| BUYER2
CERVEZA A6 150 FOX | 15| BUYER2
我想檢索所有與第一個單詞匹配的數據(例如ASIZ )求和的數量並將其顯示為:
BUYER1
Asiz - 60 pcs.
Cerveza = 30 pcs.
etc.
BUYER2
Asiz = 48 pcs.
Cerveza = 15 pcs.
等等
目前我正在使用2 while循環:
SELECT DISTINCT product_name
FROM my_table
WHERE buyer_code= '".$bcode."'
GROUP BY product_name
-然后我得到了產品名稱
然后
SELECT DISTINCT product_name,tert, SUM(quantity) AS quantity
FROM my_table
WHERE buyer_code ='".$bcode."' AND
prouct_name LIKE '".$first_word_of_product_name."%'
GROUP BY tert
ORDER BY data ASC
我得到正確的總和,但是每次找到相似的命名產品時,它就會列出它們(例如: BUYER1:ASIZ-2次,等等)
表明:
Buyer1
ASIZ - 60
Cerveza - 30
ASIZ - 60
Cerveza - 30
我知道它與product_name有關,但是我應該如何編寫sql語句來起作用? 謝謝
SELECT SUBSTRING_INDEX(product_name, '.', 1) product, tert, SUM(quantity) quantity
FROM my_table
GROUP BY product, tert
從第二個SQL中刪除tert
,它將按預期工作。
更改為
SELECT DISTINCT product_name,tert, SUM(quantity) AS quantity
FROM my_table
WHERE buyer_code ='".$bcode."'
AND prouct_name LIKE '".$first_word_of_product_name."%'
GROUP BY tert
ORDER BY data ASC
這個
SELECT DISTINCT product_name, SUM(quantity) AS quantity
FROM my_table
WHERE buyer_code ='".$bcode."'
AND prouct_name LIKE '".$first_word_of_product_name."%'
GROUP BY product_name
ORDER BY data ASC
跑
SELECT tert, SUBSTRING_INDEX(product_name,' ',1) as product, sum(quantity) as qty
FROM my_table
GROUP BY tert, product
ORDER BY tert, product
您的結果將按tert排序,因此您可以逐一瀏覽顯示產品和數量,並在每次tert更改時顯示tert 。
UPDATE :一個代碼示例如何輸出數據(未測試):
$tert = null;
foreach($rows as $row){
if($rows['tert'] != $tert){
$tert = $rows['tert'];
echo $tert;
}
echo $row['product'], "-", $row['qty'];
}
$rows
所有提取的行。
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