2021-12-29
Introduction A native image is an operating system specific executable file. You can build such an image for basically every application running on a Java virtual machine. This approach promises faster start-up times and lower resource consumptions. This makes it appealing for serverless computing, auto-scaling platforms and command line tools. I gained […]
2020-06-06
Introduction The utPLSQL extension for SQL Developer was originally written in Xtend. In this blog post I explain why we decided to migrate the project to Java and how we’ve done that. Why Replace Xtend? Xtend is a statically typed, clean language with excellent string templating features and a fine integration into […]
2019-02-17
Since February, 13 2019 Oracle Database 19c is available. I blogged about this feature here and here. Time for an update. So, what’s new in 19c regarding the MemOptimized Rowstore? Fast Lookup Works with JDBC Thin Driver I listed 16 prerequisites for the MemOptimized Rowstore in this blog post. The last one – “The […]
2018-08-25
Using the database as persistence layer only is an anti-pattern. Praful Todkar applies this anti-pattern in How to extract a data-rich service from a monolith. Martin Fowler reviewed this article and published it on his website. Hence it is highly visible. I generally agree with the approach. But I cannot agree with […]
2018-08-05
In this blog post I show how to build a read-only view-API for Oracle’s HR sample schema. And I will use this view-API in a JOOQ application. This application will fully comply with the Pink Database Paradigm (PinkDB). This means the application executes set-based SQL and retrieves data with as few network roundtrips as possible. […]
2018-06-19
On June, 10 2018 I blogged about the MemOptimized RowStore in Oracle Database 18c. If you haven’t read this post, it is a good idea to catch up now. I showed that accessing a memoptimized table t4 via the MemOptimized RowStore was around 60% slower than accessing a heap-organized table t1. I […]
2018-06-10
The MemOptimized RowStore introduced in Oracle Database 18c is designed to improve performance of simple queries accessing data via primary key columns only. An example of such a query is SELECT value FROM t WHERE key = :key where key is the only primary key column of table t. This feature is available […]