Roland Bouman's blog

Nowadays, many SQL implementations offer some form of aggregate string concatenation function. Being an aggregate function, it has the effect concatenating values of a group of rows into a single...

https://rpbouman.blogspot.com/2024/03/sap-hana-trick-distinct-stringagg.html

In this ui5tip, we'll take a look at integrating ui5's sap.ui.model.json.JSONModel with sap.ui.util.Storage utility . Our immediate use case for this was to allow easy and transparent persistenc...

https://rpbouman.blogspot.com/2024/01/ui5-tips-persisting-jsonmodel-data.html

This tip provides a way to centrally manage UI state, and to persist it - automatically and without requiring intrusive custom code sprinkled through your apps. THE UI STATE Many ui5 controls...

https://rpbouman.blogspot.com/2024/01/ui5-tips-persistent-ui-state.html

UI5 offers a couple of widgets that can expand and collapse. To do that, these controls render a button with an icon that indicates the current state, and which the user can click to toggle the s...

https://rpbouman.blogspot.com/2024/01/ui5-tips-change-expandcollapse-icons_3.html

Standard UI5 event handling will usually go a long way. Yet sometimes, certain user actions can cause ui5 objects to generate a lot of similar events within a small period of time, and it is ofte...

https://rpbouman.blogspot.com/2024/01/ui5-tips-buffering-events-to-avoid.html

Here's a ui5tip to show how you can change the look and feel of the sap.m.TabContainer with a minimal amount of custom CSS. If you want to try this for yourself, be sure to check out the sample ...

https://rpbouman.blogspot.com/2024/01/ui5-tips-change-expandcollapse-icons.html

UI5 apps always take a little time to load. If you don't take any precautions, the user will be looking at a blank screen while the app is loading. It is fairly simple to add a splash screen and ...

https://rpbouman.blogspot.com/2024/01/ui5-tips-adding-splash-screen-loading.html

For one of our Just-BI customers we implemented a Year-to-Date calculation in a Azure Synapse Backend. We encountered a couple of approaches and in this series I'd like to share some sample code...

https://rpbouman.blogspot.com/2021/02/year-to-date-on-synapse-analytics-5.html

For one of our Just-BI customers we implemented a Year-to-Date calculation in a Azure Synapse Backend. We encountered a couple of approaches and in this series I'd like to share some sample code...

https://rpbouman.blogspot.com/2021/02/year-to-date-on-synapse-analytics-4.html

For one of our Just-BI customers we implemented a Year-to-Date calculation in a Azure Synapse Backend. We encountered a couple of approaches and in this series I'd like to share some sample code...

https://rpbouman.blogspot.com/2021/02/year-to-date-on-synapse-analytics-3.html

For one of our Just-BI customers we implemented a Year-to-Date calculation in a Azure Synapse Backend. We encountered a couple of approaches and in this series I'd like to share some sample code...

https://rpbouman.blogspot.com/2021/02/year-to-date-on-synapse-analytics-2.html

For one of our Just-BI customers we implemented a Year-to-Date calculation in a Azure Synapse Backend. We encountered a couple of approaches and in this series I'd like to share some sample code...

https://rpbouman.blogspot.com/2021/02/year-to-date-on-synapse-analytics-1.html

This is the last of a series of blogposts describing a simple web front end tool to explore SAP HANA's Text Analysis features on documents uploaded by the user. As a reminder, the following overv...

https://rpbouman.blogspot.com/2019/12/building-ui5-demo-for-sap-hana-text_2.html

We now continue our series on building a simple web application for exploring SAP HANA Text Analysis features. As a reminder, here are the links to the other installments in the series: Part 1 - ...

https://rpbouman.blogspot.com/2019/12/building-ui5-demo-for-sap-hana-text_28.html

In the previous blog post , I explained some of the pre-requisites for building a SAP HANA Text Analysis application, and some thoughts were dedicated on how to expose these features to a end-use...

https://rpbouman.blogspot.com/2019/12/building-ui5-demo-for-sap-hana-text_1.html

Last week, me and my Just-BI co-workers Arjen Koot and Mitchell Beekink had a bit of a rumble with HANA (1.0) and the UI5 toolkit . In the process, we made a few observations and found out a few...

https://rpbouman.blogspot.com/2019/12/building-ui5-demo-for-sap-hana-text.html

Abstract: Matching JavaScript regular expressions against large input strings with V8 can result in memory leaks. In this post, I explain how to troubleshoot the issue using Google Chrome heap sn...

https://rpbouman.blogspot.com/2018/03/a-tale-of-javascript-memory-leak.html

I started to learn UI5 in earnest in september 2016. Quite soon after that I wrote two blog posts about per-view internationalization: SAP UI5: Per-view Internationalization SAP UI5: Internatio...

https://rpbouman.blogspot.com/2017/06/ui5-per-view-internationalization-what.html

To whom it may concern, one week ago, Friday, 9th of June 2017 I was at the Dutch house of representatives ("de tweede kamer") to participate in the 2017 Accountability Hackathon . THE ACCOU...

https://rpbouman.blogspot.com/2017/06/team-just-bi-wins-2nd-prize-at-dutch.html

A few days ago, I ran into the article "Hash Keys In The Data Vault" , published recently (2017-04-28) on the the Scalefree Company blog . Scalefree is a company, founded by Dan Linstedt and Mic...

https://rpbouman.blogspot.com/2017/05/do-we-still-need-to-talk-about-data.html

Dear SAP HANA DBa's, developers, architects etc, we at Just BI released Shivers . WHAT IS SHIVERS? Shivers stands for SAP/HANA Information ViewERS. It is a tool to analyze and visualize depe...

https://rpbouman.blogspot.com/2017/03/announcing-shivers-visualizing-saphana.html

For one of Just-BI 's customers, we're currently working to productize a custom-built proof-of-concept SAP/HANA application. This particular application is quite typical with regard to how we...

https://rpbouman.blogspot.com/2016/10/sap-hana-on-which-base-columns-do-my.html

After writing my previous post on SAP UI5: Per-view Internationalization , I found out that the solution does not work completely as intended when using nested views. If you're using nested v...

https://rpbouman.blogspot.com/2016/09/sap-ui5-internationalization-for-each.html

NOTE: There is an addendum to this blog post that suggests a number of improvements. You can check out the addendum here: SAP UI5: Internationalization for each view - Addendum for Nested Views ....

https://rpbouman.blogspot.com/2016/09/sap-ui5-per-view-internationalization.html

I'm very pleased to be able to announce the immediate availability of the Open Data Export Layer (ODXL) for SAP/HANA! EXECUTIVE SUMMARY ODXL is a framework that provides generic data export ...

https://rpbouman.blogspot.com/2016/05/odxl-generic-data-export-layer-for.html