For those who can write SQL but don't understand PL/SQL: An explanation from basic syntax to practical pitfalls

An explanation from basic syntax to practical pitfallsYou can use SQL to search for data and retrieve records by specifying ...
PC Magazine

query by example

A method for describing a database query originally developed by IBM for mainframes. A replica of an empty record is displayed and the search conditions are typed in under their respective columns ...
Redmond

Understanding Dirty Reads: What NOLOCK Does to Your Queries

Let's break down when it's ideal to use the NOLOCK hint and when you should never use it. As a consultant, I work on wide swaths of database systems, which means I get to see many, many SQL statements ...

Understanding Django ORM through 1-day vulnerabilities and SQL bugs

This article is the Japanese version of a post published on STEALIEN's Korean technical blog in December 2022. It introduces ...
Redmond

Deep Dive into SQL Server 2022's Query Performance Features, Part 2: PSP Optimization

In part 1 of my SQL Server 2022 features series, you learned about the improvements to the cardinality estimator component of query optimization. In this installment, you will learn about another ...
Network World

Chapter 3: Examples of SQL Server Implementations

As you will see in this chapter, companies use SQL Server for many types of applications and on most tiers now. Gone are the days when you would second guess yourself choosing to use SQL Server over a ...