Mysql查詢中的問題

我試圖通過檢查相同的字段在一個查詢中長。我的查詢是這樣的Mysql查詢中的問題

SELECT DISTINCT products.products_id,products_description.products_title, products_sizes.size_id, products_sizes.size_title,products_sku.sku  
FROM products_description 
LEFT JOIN products ON products_description.products_id = products.products_id 
LEFT JOIN products_sizes ON products_description.products_id = products_sizes.products_id 
LEFT JOIN product_stock_history ON product_stock_history.products_id = products.products_id 
LEFT JOIN products_sku ON products_sku.size_id = products_sizes.size_id 
WHERE products.enable_stock_management = '1' 
AND products.products_id != '-11'

這將檢索結果如下圖所示

，但我想通過檢查來檢索像下面的細節sizeid是不同的，那麼唯一的顯示，否則檢索第一記錄

這是可能實現？

來源

2017-04-27 Anju

您可以通過products.products_id，products_description.products_title使用'組，products_sizes.size' – Jens

組由不起作用？ – masterFly

是的，這將工作。哦，那不是我想到的。只能通過products_sizes.size進行分組。非常感謝 – Anju

我認爲這將作爲您預計

SELECT DISTINCT products.products_id, 
       products_description.products_title, 
       products_sizes.size_id, 
       products_sizes.size_title, 
       products_sku.sku 
FROM products_description 
LEFT JOIN products ON products_description.products_id = products.products_id 
LEFT JOIN products_sizes ON products_description.products_id = products_sizes.products_id 
LEFT JOIN product_stock_history ON product_stock_history.products_id = products.products_id 
LEFT JOIN products_sku ON products_sku.size_id = products_sizes.size_id 
WHERE products.enable_stock_management = '1' 
    AND products.products_id != '-11' 
GROUP BY size_id, 
     size_title

來源

2017-04-27 10:21:08

我沒有測試過這個查詢，因爲我沒有我的電腦 –

SELECT DISTINCT products.products_id,products_description.products_title, products_sizes.size_id, products_sizes.size_title,products_sku.sku  
FROM products_description 
LEFT JOIN products ON products_description.products_id = products.products_id 
LEFT JOIN products_sizes ON products_description.products_id = products_sizes.products_id 
LEFT JOIN product_stock_history ON product_stock_history.products_id = products.products_id 
LEFT JOIN products_sku ON products_sku.size_id = products_sizes.size_id 
WHERE products.enable_stock_management = '1' 
AND products.products_id != '-11'GROUP BY products.products_id;

來源

2017-04-27 10:19:01

Mysql查詢中的問題

回答

相關問題