[英]mysql - GROUP_CONCAT rows into a string
我有以下結果集:
req_id | p_id | ai_result | hash | sku
1 | 4 | Match | XAN | HOW
1 | 4 | Match | HXN | HOW
1 | 4 | Non Match | 123 | HOW
我需要以下輸出
sku | matched | non_matched
HOW | XAN, HXN | 123
這是我所能得到的:
SELECT sku, GROUP_CONCAT(hash) AS hash
FROM `sku_match`
GROUP BY req_id, p_id
如何基於ai_result
列區ai_result
並將它們分開放置。 像GROUP_CONCAT(hash) AS matched, GROUP_CONCAT(hash) AS non_matched
?
嘗試使用條件聚合:
SELECT
sku,
GROUP_CONCAT(CASE WHEN ai_result = 'Match' THEN hash END) AS matched,
GROUP_CONCAT(CASE WHEN ai_result = 'Non Match' THEN hash END) AS non_matched
FROM sku_match
GROUP BY
sku;
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