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Top 10 Very Very VERY Important Topics to Discuss
Some things are just very very very VERY very important. Such as John Cleese. The same is true for Whitespace: Whitespace-Shedding Yes. 1080 Reddit Karma points (so urgently needed!) in only 23 hours....
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jOOQ Tip of the Day: Reuse Bind Values
jOOQ implements your SQL statements as AST (Abstract Syntax Tree). This means that your SQL statement is modelled in a non-text form prior to serialising it as a textual SQL statement to your JDBC...
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Using Oracle AQ in Java Won’t Get Any Easier Than This
As recently announced in our newsletter, the upcoming jOOQ 3.5 will include an awesome new feature for those of you using the Oracle database: Native support for Oracle AQ! And your client code will be...
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Are You Using SQL PIVOT Yet? You Should!
Every once in a while, we run into these rare SQL issues where we’d like to do something that seems out of the ordinary. One of these things is pivoting rows to columns. A recent question on Stack...
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Join the No OFFSET Movement!
Markus Winand from Use The Index, Luke! did it again. He started an exciting battle against one the biggest flaws in the SQL language: We’ve blogged about this before. OFFSET pagination is terribly...
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SQL Tip of the Day: Be Wary of SELECT COUNT(*)
Recently, I’ve encountered this sort of query all over the place at a customer site: DECLARE v_var NUMBER(10); BEGIN SELECT COUNT(*) INTO v_var FROM table1 JOIN table2 ON table1.t1_id = table2.t1_id...
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The Difference Between ROW_NUMBER(), RANK(), and DENSE_RANK()
One of the best features in SQL are window functions. Dimitri Fontaine put it bluntly: There was SQL before window functions and SQL after window functions If you’re lucky enough to be using any of...
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A Wonderful SQL Feature: Quantified Comparison Predicates (ANY, ALL)
Have you ever wondered about the use-case behind SQL’s ANY (also: SOME) and ALL keywords? You have probably not yet encountered these keywords in the wild. Yet they can be extremely useful. But first,...
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jOOQ Newsletter: August 15, 2014 – jOOQ 3.5 Outlook
Subscribe to this newsletter here jOOQ 3.5 Outlook We’re working hard on the next release. Already 90 issues for jOOQ 3.5 are closed and counting! Today, we’re going to look at the highlights of what...
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All You Ever Need to Know About Recursive SQL
Oracle SYNONYMs are a great feature. You can implement all sorts of backwards-compatibility tweaks simply by creating SYNONYMs in your database. Consider the following schema: CREATE TABLE my_table...
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Integrating jOOQ with PostgreSQL: Partitioning
Introduction jOOQ is a great framework when you want to work with SQL in Java without having too much ORM in your way. At the same time, it can be integrated into many environments as it is offering...
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jOOQ Newsletter: September 02, 2014 – Do You Really Need Support?
Do you really need support? Our apologies. We hadn’t realised that we didn’t advertise the support-free jOOQ licenses, which we had been offering for quite a while now well enough on our website. So we...
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Awesome SQL Trick: Constraints on Views
CHECK constraints are already pretty great when you want to sanitize your data. But there are some limitations to CHECK constraints, including the fact that they are applied to the table itself, when...
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Asynchronous SQL Execution with jOOQ and Java 8’s CompletableFuture
Reactive programming is the new buzzword, which essentially just means asynchronous programming or messaging. Fact is that functional syntax greatly helps with structuring asynchronous execution...
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Using Your RDBMS for Messaging is Totally OK
Controversial database topics are a guaranteed success on reddit, because everyone has an opinion on those topics. More importantly, many people have a dogmatic opinion, which always triggers more...
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Don’t Miss out on Writing Java 8 SQL One-Liners with jOOλ or jOOQ
More and more people are catching up with the latest update to our platform by adopting functional programming also for their businesses. At Data Geekery, we’re using Java 8 for our jOOQ integration...
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Stop Claiming that you’re Using a Schemaless Database
One of MongoDB’s arguments when evangelising MongoDB is the fact that MongoDB is a “schemaless” database: Why Schemaless? MongoDB is a JSON-style data store. The documents stored in the database can...
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A RESTful JDBC HTTP Server built on top of jOOQ
The jOOQ ecosystem and community is continually growing. We’re personally always thrilled to see other Open Source projects built on top of jOOQ. Today, we’re very happy to introduce you to a very...
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Painless Access from Java to PL/SQL Procedures with jOOQ
PL/SQL is one of those things. Most people try to stay clear of it. Few people really love it. I just happen to suffer from stockholm syndrome, since I’m working a lot with banks. Even if the PL/SQL...
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Don’t Miss out on Awesome SQL Power with FIRST_VALUE(), LAST_VALUE(), LEAD(),...
If you’re using a commercial database or PostgreSQL / Firebird / CUBRID, you will be able to take advantage of the full power of window functions. We’ve blogged about window functions’ awesomeness a...
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