You can use COUNT(DISTINCT xxx) in this way: select distinct user_id, project_id from t where project_id in (select project_id from t group ... ... <看更多>
「mysql select * except column」的推薦目錄:
mysql select * except column 在 Add except method to Eloquent query builder #2108 - GitHub 的推薦與評價
This method will exclude given instance(s) from the query. For example: // Excluding single model: User::where('id', '! ... <看更多>
mysql select * except column 在 Select all columns except one in MySQL? - Stack Overflow 的推薦與評價
... <看更多>
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