mysql-将行分组为字符串
我有以下结果集:mysql-将行分组为字符串,mysql,sql,group-by,group-concat,Mysql,Sql,Group By,Group Concat,我有以下结果集: req_id | p_id | ai_result | hash | sku 1 | 4 | Match | XAN | HOW 1 | 4 | Match | HXN | HOW 1 | 4 | Non Match | 123 | HOW 我需要有以下输出 sku | matched | non_matched HOW | XAN, HXN | 123 以下是我
req_id | p_id | ai_result | hash | sku
1 | 4 | Match | XAN | HOW
1 | 4 | Match | HXN | HOW
1 | 4 | Non Match | 123 | HOW
我需要有以下输出
sku | matched | non_matched
HOW | XAN, HXN | 123
以下是我所能得到的:
SELECT sku, GROUP_CONCAT(hash) AS hash
FROM `sku_match`
GROUP BY req_id, p_id
如何根据ai_结果列区分行并将它们分开放置。
类似于组匹配,组不匹配?尝试使用条件聚合:
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;
尝试使用条件聚合:
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;
您可以尝试子查询您可以尝试子查询