TechRepublic

Understand the effects of NULLs on inner and outer JOINs

In this SQL Server tip, Arthur Fuller explains the effects of NULLs, and the different results obtained by inner and outer JOINs. SQL Server developers must understand two things: the difference ...
InfoWorld

13 reasons SQL has got to go

Why is the language developers and DBAs use to organize data such a mess? Here are 13 reasons we wish we could quit SQL, even though we probably won't. For all its popularity and success, SQL is a ...
GitHub

A Python based SQL formatter

pre-commit is a nice development tool to automatize the binding of pre-commit hooks. After installation and configuration pre-commit will run your hooks before you commit any change. CREATE OR REPLACE ...
TechRepublic

How to query multiple tables in SQL

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 ...
Hacker

3 Ways to Deal With Hibernate N+1 Problem

N+1 problem in Hibernate may occur if you use FetchType.LAZY for your entity association. When you fetch N-entities with and then invoke any access method of your entity's LAZY association, Hibernate ...
搜狐

都正干货 | SAS入门必备之浅谈PROC SQL

SQL(Structured Query Language)是一种结构化查询语言，熟悉了SQL语句，你的数据检索能力会有一个质的飞跃，本文部分内容引自《深入解析SAS》。 SQL检索数据 在SAS中，我们通过调用PROC SQL使用SQL，首先要明白，SAS术语和SQL术语的区别，如下： 在SQL中，可以有若干个 ...