leetcode-SQL-1581. 进店却未进行过交易的顾客

leetcode-SQL-1581. 进店却未进行过交易的顾客

题目题目链接表:Visits+-------------+---------+ | Column Name | Type | +-------------+---------+ | visit_id | int | | customer_id | int | +-------------+-----...

LeetCode(数据库)- 进店却未进行过交易的顾客

题目链接:点击打开链接题目大意:略。解题思路:略。AC 代码SELECT customer_id, COUNT(*) count_no_trans FROM Visits WHERE visit_id NOT IN (SELECT DISTINCT visit_id FROM Transaction...

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