无论是MySQL、PostgreSQL，还是Snowflake、BigQuery，只要会写SELECT，你就能和数据对话。它稳定、高效、逻辑清晰，是每个数据从业者的基本功。 这些需求，用SQL不是做不到，而是 成本太高 ...

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 ...

SQL, the Structured Query Language, remains one of the most widely used programming languages, coming in fourth in Stack Overflow’s research for 2023. Just over half (51.52%) of professional ...

Built-in functions, UDFs, materialized results, and integrations with ML and AI models make streaming SQL a compelling choice ...

Even after 50 years, Structured Query Language, or SQL, remains the native tongue for those who speak data. It’s had impressive staying power since it was first coined the Structured Query English ...

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.