What the Ether, part 1 – Ethereum

Ivan Hu

Just like in 2017, blockchain has been all the craze this year. With Bitcoin reaching prices over three times higher than the previous all-time high, everybody has been talking about cryptocurrency and blockchains. And one of the blockchains that has been taking the spotlight is Ethereum. That is why in […]

How to unit test a SQL query?

Lucas Jellema 7

A simple challenge: I am working on a SQL query. Not a trivial query. I am trying various approaches. I believe I may have found a solution that works. That produces the correct solution. How can I be sure? How can I try to further refine the query while maintaining […]

How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (6)

Gert-Jan Paulissen

Last time in “How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (5)”, I told you about Git, Subversion, Maven and Flyway. In this final article, I will discuss the following tools & methods: Oracle SQL Developer, utPLSQL, SonarQube, Perl, Ant and DevOps. Oracle […]

How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (5)

Gert-Jan Paulissen

Last time in “How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (4)”, I told you about the Oracle SQL Developer Data Modeler. This time I will discuss the following tools: Git, Subversion, Maven and Flyway. Flyway The first tool I would like to […]

How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (4)

Gert-Jan Paulissen

Last time in “How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (3)”, I told you about the Oracle Database and Oracle APEX. This time I will discuss Oracle SQL Developer Data Modeler. Oracle SQL Developer Data Modeler A book I can recommend is Oracle […]

How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (3)

Gert-Jan Paulissen

Last time in “How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (2)”, I did show you the database structure. This time I will elaborate on the base tools, the Oracle Database and Oracle APEX. Oracle Database How to use it? I can tell […]

How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (2)

Gert-Jan Paulissen

Last time in “How to build an Oracle Database application (that supports APEX, Java, React or any other front-end) (1)”, I gave you an introduction. This time I will elaborate on the database structure. Project folder layout The following top level directories may exist for every database application project: Directory Description […]

The Prototype Pitfall

Lucas Jellema

TL;DR Prototyping is an essential way to determine the technical feasibility and functional desirability of features of a software system. There is a clear and present danger that the prototype is considered to be professional code, peer reviewed and production ready. This risk must be mitigated and anyone involved needs […]