sql

英文: How to get 2 distinct rows from 1 row with 3 tables in sql oracle? 问题 我有3个表，看起来有点像这样。 PersonTabl...

英文: Hello, I'm trying to create tables in oracle sqlplus, but I keep getting an invalid datatype...

英文: Request with count and group by 问题 select id_person from table where date is null group by id_pe...

英文: Filter the record not same from what I have within the same result set? 问题 这是您所提供的结果集。您想要从中移除具有重...

英文: Subtract to numbers in relation to time/date specific query in Mysql // Nodered 问题 嗨，作为一个MySQL的新...

英文: Why EXISTS statement works differently in delete and update query? 问题 请告诉我在EXISTS语句中我漏掉了什么。我正在遵循...

英文: How could I obtain a count from multiple colums? 问题 我有一个在SQL Server中的表，其中包含有关课程（Courses）、工作区域（Wo...

英文: DuckDB Binder Error: Referenced column not found in FROM clause 问题 我在DuckDB中处理从json中读取的数据库。 这是js...

英文: How to get the Not Exists Record List from the Given List in Presto with ANSI SQL 问题 如何从给定的输入条件中...

英文: How to enforce "at least one" in a one-to-many relationship? 问题 [![ERD][1]][1] 如何在Post...