数十年来，从基础报表统计到深度财务分析，再到用户行为洞察，SELECT–FROM–WHERE 的查询逻辑一直主导着我们与数据库的沟通。SQL 也顺理成章地成为数据库查询的默认标准，即便当年高举 “反 SQL 革命” 旗帜的 NoSQL ...

Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier. Due to popular demand, we’re ...

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 ...

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 ...

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 ...

4、 SQL Server 2005工作组版，仅支持32位系统，适用于中小型企业的数据管理需求，提供基本的数据库功能与较低的维护成本。

Community driven content discussing all aspects of software development from DevOps to design patterns. The goal of Hibernate and JPA is to hide the complexity of SQL and relational databases from the ...

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.

Summarization wasn’t new either. Oracle’s cloud AI stack — OCI Generative AI — already supported it. With the official ...