Mariska Oosthuizen, Author at Data Bear - Power BI Training and Consulting

About Mariska Oosthuizen

Mariska is a curious and responsible Data Analyst with a creative and analytical approach toward finding solutions to problems. She’s a highly driven individual, with a Postgraduate degree in Economics. She is skilled in effectively interpreting findings and circulating information optimized for application by end-users as well as improving on and building new processes and procedures.

SQL Stored Procedures in Power BI
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SQL Stored Procedures in Power BI
Power BI

SQL Stored Procedures in Power BI

How to use SQL Server Stored procedures in Microsoft Power BI? The aim [...]

By Mariska Oosthuizen|2022-07-05T10:56:18+00:00June 28th, 2021|Power BI|0 Comments

Decomposition tree in Power BI
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Decomposition tree in Power BI
Power BI

Decomposition tree in Power BI

Analyse data across multiple dimensions with the Power BI Decomposition tree With the [...]

By Mariska Oosthuizen|2022-07-05T11:04:06+00:00June 14th, 2021|Power BI|0 Comments

Key influencers – Power BI AI visuals
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Key influencers – Power BI AI visuals
Power BI

Key influencers – Power BI AI visuals

Understanding the factors that drive a metric with Power BI's Key influencers visual [...]

By Mariska Oosthuizen|2022-07-12T11:41:39+00:00May 20th, 2021|Power BI|0 Comments

Add a Custom Column in Power BI
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Add a Custom Column in Power BI
Power BI

Add a Custom Column in Power BI

Use M-Query to add a column to your data If you want to [...]

By Mariska Oosthuizen|2022-07-12T12:09:37+00:00April 5th, 2021|Power BI|0 Comments

Bubble chart in Power BI

Creating a Bubble Chart in Power BI In this blog, we build a [...]

By Mariska Oosthuizen|2021-10-09T07:52:56+00:00March 15th, 2021|Power BI|0 Comments

Combo charts in Power BI

Creating a Combo Chart in Power BI: understanding the multiple Y-axis If [...]

By Mariska Oosthuizen|2022-08-01T04:54:03+00:00February 22nd, 2021|Power BI|0 Comments

Conditional formatting based on multiple conditions
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Conditional formatting based on multiple conditions
Power BI

Conditional formatting based on multiple conditions

Conditional formatting of columns in a matrix visual using multiple conditions Have you [...]

By Mariska Oosthuizen|2021-10-09T07:46:13+00:00February 1st, 2021|Power BI|0 Comments

Custom tooltips: Report tooltip pages in Power BI

Create custom tooltips with tooltip pages in Power BI Sometimes when we add [...]

By Mariska Oosthuizen|2021-10-09T07:42:13+00:00January 12th, 2021|Power BI|0 Comments

Bin Groups in Power BI

Create Bins in Power BI Have you ever wanted to do an analysis [...]

By Mariska Oosthuizen|2021-10-09T07:39:50+00:00November 22nd, 2020|Power BI|0 Comments

How to view and retrieve all measures? – Power BI

Retrieve measures used within a Power BI report by making use of DAX [...]

By Mariska Oosthuizen|2021-10-09T07:37:08+00:00November 9th, 2020|Data Bear, Microsoft Power BI, Power BI, Power BI DAX, Power BI Measures, Power BI Tips|0 Comments

12 Next

Google Rating

5.0

Data Bear - Power BI Training London

Purple Thread Marketing

23:14 23 Mar 17

Johann is brilliant. The Data Bear solutions are just fantastic. The quantifiable improvement to any business using their Power BI Dashboards are worth 100 times more than the investment. Great stuff.

James Mack

22:48 18 May 17

We have been working with Johann and Dmitri for almost a year now. From concept to design and implementation, they have been nothing but professional and timely. They leveraged Azure and Power BI to sort and report our point of sales data. We have no reservation when it comes to recommending Data Bear and look forward to our continued partnership.

Laura Sailor

01:13 05 Apr 17

The DataBear team has been great to work with! They take the time to understand the problem and then put together a real-time solution. It's also great when they responds so quickly! We will continue to work with them!

Guru Sankar

07:11 08 Apr 17

Fantastic experience. Very customer oriented - in helping us think through our needs, suggesting solutions and then delivering on a great solution. Great guys to work with!

Ellen Howard

22:27 04 Apr 17

Extremely professional and easy to work with. Highly knowledgeable on all aspects of Microsoft Power BI issues and solutions. Would strongly recommend.

Prameet Dhaliwal

07:00 13 Oct 17

Johann and the team are a great resource if you are looking to implement Power BI. He has worked closely with the team here at Appdopt and they provide powerful insights!

Thierry Thielens

09:45 16 Feb 18

Incredible trainers. Very knowledgeable. Took me from zero to very decent level in no time. I'd highly recommend using them for your data modelling and training needs.

Jonathon Dawes

12:00 08 May 18

Fantastic training delivered clearly and effectively. Training was delivered at a pace that reflected our individual abilities and Johan ensured everything was clearly understood before moving on. Would happily recommend!

Marlena Krawczyk

12:27 08 May 18

Great Power BI training provider – very professional and knowledgeable. I would highly recommend.

Marine Arribas

10:16 16 May 18

Very professional training from Johann who is highly knowledgeable, giving to the team great insights to project our use of Power BI. Highly recommended.

Thrudd Q

07:25 29 May 18

Highly informative and pitched at exactly the right level

Andy Freeman

13:44 31 May 18

We had the pleasure of attending the 2 day BI Course. Not was not only very informative, it was made extremely enjoyable by the very knowledgeable Johann who presented in a way we all understood. Highly Recommend anyone looking for some BI training to contact Data Bear

Andrew Brown

11:47 02 Jul 18

Great Power Bi training in London. A very comprehensive overview of this platform with a thorough agenda, good training materials and a friendly group; Johann is an excellent trainer with a great depth of knowledge and experience in Power Bi. Highly recommended.

Chris Halford

15:58 16 Jul 18

Johann provided excellent guided instruction and inspired the candidates to be excited about the possibilities of taking the learning away to implement.

Craig Burton

15:41 25 Jul 18

DataBear were a pleasure to deal with. We had a 2-day training workshop at our own location, Johann was very knowledgeable, not only delivering a well structured and organised piece of training, but also able to answer questions quickly. Thank you for a superb experience.

Jon Brown

13:06 05 Sep 18

Super clear instruction and tutoring by Johann. Great size of group (6) - meant that no-one in the class was left behind, and it seemed those ahead - were not too held back. It is a lot of info to take in for the 2 day course. Would highly recommend the 3 day course where possible! Jon Brown

Shannon Molloy

09:28 10 Sep 18

I recently attended the 2-day Power BI Course run by Johann. This was an intensive and extremely valuable course. Johann is a great instructor, he knows the subject well, and his pace is spot-on. There were many clear and easy-to-follow examples, and the emphasis on practical learning makes this a very worthwhile two days. I would recommend doing the three day course however, as there is so much content and I left wanting just a little more exposure to the final module. Many thanks Johann!

Christopher Bernatek

11:31 28 Sep 18

Being new to Power BI I was keen to organise some training for our UK data team. After some Googling I decided on Databear and gave them a call. Johann promptly called me back and we discussed the various training options and we arranged some onsite training to be held at our own offices. Johann provided two excellent days of training, full of knowledge, insight and explanations. With Johann you get right in to using the tool and apply what you are learning as you go. I would highly recommend Johann to anyone interested in learning how to use Power BI correctly and effectively.

Jordan Russell

12:51 28 Sep 18

I attended the three day PowerBI training course with Johann and found it extremely valuable and insightful. Johann has an excellent knowledge of the subject and the lessons are well structured. I would recommend people take the opportunity to learn and grow their skills through Data Bear .

Josh Davidson

09:15 26 Oct 18

Data Bear came in to run a two day course on Power BI, the attendees were from various levels of excel experience, but Johann kept the training relevant to all levels and made sure to carry everyone along. a very good way to start your Power BI journey.

Helen Smith

11:49 12 Nov 18

Excellent intensive, small group two-day course - best practise on data modelling was the most valuable section for me as this underpins the success of everything you could possibly want to achieve in Power BI! Highly recommend for those who have go their teeth into Power BI already and want to produce more effective and efficient work but also great for complete beginners as Johann will adapt to suit your needs, even in a mixed group.

Maria Razdelkina

15:02 05 Dec 18

Very structured, well delivered, convenient in terms of timing and location course! I really had a great value for money n this course! Thanks Johann, will definitely recommend to colleagues!

Vivian Chiu

11:46 31 Jan 19

I have just attended a 2-day PowerBI course ran by Johann. The course is very comprehensive and intense. I would suggest anyone who plans to attend the course to have some basic idea of PowerBI first. This will make the 2-day less daunting. Having said that, Johann was super helpful and patient both during and after the course. A classroom course beats any online course hands down.

Ben O'Connor

16:18 31 Jan 19

Had a fantastic three days with Johann, and would thoroughly recommend to anyone looking to improve their PowerBI skills. His (and Data Bear's) approach to training is very intuitive and helps with real-life examples. The training was adapted to the areas I required further guidance on which provided a very, very quality experience. Happy to say I will be undertaking further training with Data Bear in the coming months.

Daniel Slater

09:20 02 Sep 19

Excellent course. Had the pleasure of being tutored by Johann in the 2-day Power BI introduction. By the end of it I was able to go back to work and start producing reports I had hoped to - almost straight away. Highly recommended.

Ajay Gajree

09:23 30 Apr 19

The course was taught by the founder of Data Bear, and I was thoroughly impressed by it. It was taught a fast but engaging pace with several well thought out exercises throughout the 3 days that really helped embed the core subjects Johann was teaching us. I would highly recommend this course to anyone starting off in Power BI who wants to quickly attain a good level of knowledge.

Brikena Tachirai

22:48 12 Mar 19

Great course! My colleagues and I had a private 2 day training with Johann. The course was exactly what we were looking for in order to get a solid understanding of PowerBI. He took us from zero to a level where we feel confident enough to start creating our own reports. He was happy to deviate from schedule, answer all our questions and tailor the content based on our needs. Highly recommended!

Shree Kale

14:57 05 Jun 19

3 day Power BI Training - Johann is a great instructor and assisted in every aspect to understand the core concepts. It's a great course and would definitely recommend to anyone who wants to learn Power BI.

Roger Taylor

11:02 30 Apr 19

A very worthwhile investment of time and money. I've been using Power BI for 6 months learning by trial and error. This course really provided the context I needed. Its a very well structured and hands-on course. My only regret is that I didn't sign up for the full 3 days as there was stuff in the 3rd day which would have been beneficial too.

alistair ring

08:42 31 Oct 19

Very well structured course that provided all the building blocks to be able to master PBI. Would highly recommend. The instructors were also very willing to help me outside of the lessons with any questions relating to projects i was working on. If you want to save a lot of time when starting out with PBI, this course will teach you all the fundamental best practice techniques you should be using.

Pau Ramón

10:27 01 Nov 19

Absolutely brilliant course, nice people and approachable. Highly recommend taking the extended course.

Barrett Layman

14:31 04 Aug 20

My firm recently contracted Data Bear to improve our implementation of Power BI embedded. Their engineers have a very high level of technical acumen, and had experience in several different technologies. I would highly recommend their services.

Dionne Clarke

16:42 05 Nov 20

Outstanding private training from Data Bear, can highly recommend for anyone that needs some comprehensive tuition on Power BI - great company who were adaptive to my needs and very limited experience in this area.