aggregate-functions

英文: How to find duplicate records by full name and similar DOB? 问题 我正在寻找如何在数据库中找到可能只在出生日期（DOB）方面有差异的...

英文: Query mongodb: aggregate with $avg and $unwind in array 问题 我需要一个查询来返回平均评分给我，所以我尝试运行这个查询： db.EVAL...

英文: Counting sequenced records in ranges, based on grouped varchar values 问题 I'm trying to calculate...

英文: aggregation of aggregation not allowed 问题 我正在使用Google BigQuery。 我想要找到在特定时间段（5月1日至5月28日）内每周每天（星期日...

英文: Find the latest rating for each category for each customer 问题 以下是要翻译的SQL代码的部分： select coalesce(a...

英文: Updating "anyarray" or "anyelement" polymorphic functions when upgrading to ...

英文: Aggregating a column only on distinct values of another column in SQL - with some constraints 问题...

英文: How can I produce an aggregated result with subgroups in Clickhouse? 问题 I want to be able to eff...

英文: SQL: preserve original column name from CASE + GROUP BY (+ VIEW) - ambiguous column name 问题 当您在使...

英文: Merging users with multiple refs and count their collective assets 问题 以下是您要翻译的内容： There is a set...