本文将分享一个医疗数据分析领域的 Text2SQL 项目。这是我第一个 Text2SQL 项目，算是这个场景中的新手，踩了不少坑，刚好和大家分享。 背景：客户内部有几十个业务数据库，分析师每天要写大量 SQL。需要构建自然语言转 SQL 的工具——用户用中文提问，系统自动生成 SQL 查询。 由于数据库 schema 中包含患者信息、诊断记录、用药数据等，合规上不允许任何包含数据库结构的 prom ...

Well, if you happen to be using Sql Server you can do that sort of thing in T-Sql. In Oracle, you can also accomplish the same thing using pl/sql. Either way i'd do it in a stored ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

operand is one of the following: constant is a number or a quoted character string (or other special notation) that indicates a fixed value. Constants are also called literals. Constants are described ...

You don't have to give up using dynamic SQL just because you're using Entity Framework. The Entity Framework SqlQuery method will give you back the flexibility of dynamic SQL and still let you work ...

Do you want to find out how to avoid duplicates in the results of a SQL SELECT query? This article will show you how. Simply use the DISTINCT clause and between the SELECT clause and the fields.