About Lukas Eder

Lukas is a Java and SQL enthusiast developer. He created the Data Geekery GmbH. He is the creator of jOOQ, a comprehensive SQL library for Java, and he is blogging mostly about these three topics: Java, SQL and jOOQ.

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Stop Trying to Emulate SQL OFFSET Pagination with Your In-House DB Framework!

I’m pretty sure you’ve gotten it wrong in numerous ways, so far. And you probably won’t get it right any time soon. So why waste your precious time on SQL tweaking, when you could ...
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Java 8 Friday: JavaScript goes SQL with Nashorn and jOOQ

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every ...
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SQL Developer’s “Securely” Encrypted Passwords

Recently, while at one of our customers’ site, the customer and I needed to get access to a database. On my machine, I had stored the password, but the customer obviously didn’t ...
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Java 8 Friday: Most Internal DSLs are Outdated

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every ...
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Yet Another 10 Common Mistakes Java Developers Make When Writing SQL (You Won’t BELIEVE the Last One)

(Sorry for that click-bait heading. Couldn’t resist!) We’re on a mission. To teach you SQL. But mostly, we want to teach you how to appreciate SQL. You’ll love it! Getting SQL ...
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Java 8 Friday: Better Exceptions

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every ...
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Free as in Beer has caused Heartbleed (and Much More)

Heartbleed is a bit over one month old now. A bug significant enough to have its own Wikipedia page. Today, we’re going to look into how wrong we have been in assuming that Open Source ...
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Java 8 Friday: API Designers, be Careful

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every ...
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SQL Server Trick: Circumvent Missing ORDER BY Clause

SQL Server is known to have a very strict interpretation of the SQL standard. For instance, the following expressions or statements are not possible in SQL Server:                   -- ...
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The Index You’ve Added is Useless. Why?

Recently, at the office:Bob: I’ve looked into that slow query you’ve told me about yesterday, Alice. I’ve added the indexes you wanted. Everything should be fine now Alice: ...
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