Databases
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Software Development
A Beginner’s guide to ACID and database transactions
Transactions are omnipresent in today’s enterprise systems, providing data integrity even in highly concurrent environments. So let’s get started by…
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Software Development
The SQL Language’s Most Missing Feature
SQL is also awesome in many ways. We can write out the most complex truths and facts and have the…
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Software Development
Lesser-Known SQL Features: DEFAULT VALUES
A lesser-known SQL feature is the DEFAULT keyword, which can be used in INSERT and UPDATE statements. Consider the following…
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Software Development
MongoDB “Lightning Fast Aggregation” Challenged with Oracle
What does “Scale” even mean in the context of databases? When talking about scaling, people have jumped to the vendor-induced…
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Software Development
Counting Distinct Records in SQL
The SQL language and its depths… Some of you readers might be aware of MySQL’s capability of counting distinct records…
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Software Development
Add LATERAL Joins or CROSS APPLY to Your SQL Tool Chain
The T-SQL dialect has known the powerful CROSS APPLY and OUTER APPLY JOIN syntaxes for ages. The SQL:1999 standard had…
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Software Development
Using SQL Injection Vulnerabilities to Dump Your Database
The threat caused by SQL injection is heavily underestimated even by many senior developers and software architects. Most people are…
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Enterprise Java
JOOQ Facts: From JPA Annotations to JOOQ Table Mappings
JOOQ is a neat framework, and it addresses a long issue I’ve had with advanced dynamic filtered queries. While Hibernate…
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Software Development
Multi-tier application + database deadlock or why databases aren’t queues (part1)
Databases aren’t queues. And despite the ubiquitous presence of queuing technology out there (ActiveMQ, MSMQ, MSSQL Service Broker, Oracle Advanced…
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