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We are Katie & Emil and together we have decided to learn more & more on how to build data warehouses using Microsoft products. The best option to learn is to teach so we write tutorials and share it with others.
In this blog psot we show how to restrict users from entering duplicated data by using SQL UNIQUE Constraint. In our examples we will use unique constraint on one field and we will use Email Address and one multiple fields and we will use First Name, Surname and Birth Date.… Read more
As part of my preparations for 70-462 Administering SQL Server 2012 today I have created a blog post covering "evaluate installation requirements" that is part of skills measures. New BI Edition will definitelly allow more companies get more out of SQL Server 2012 when it comes to BI but there… Read more
Some of you might be wondering why Diagram View is missing in some PowerPivot windows. This is related to Microsoft releasing two versions of PowerPivot in Excel 2010 and in this blog post you will find out when diagram view is not avialable and what to do to make available. Read more
This time we show how to use SQL DEFAULT CONSTRAINT to provide values for fields that are not given a value. This article supports our 70-461 Querying SQL Server 2012 and SQL Tutorial. Read more
We have now added SQL CHECK CONSTRAINT to Exam Guide 70-461 Querying SQL Server 2012 and SQL Tutorial Read more
In this tutorial we show how to use ALTER TABLE and add Primary key constraint. This tutorial support our Exam Guide 70-461 Querying SQL Server 2012 Read more
One of the PowerPivot advantages is flexibility of changing measure aggregation for instance changing average to minimum. PowerPivot applies default aggregation to a measure and usually it is SUM but in our case SUM does not make any sense so in this tutorial I will show how to change default… Read more
In this PowerPivot tutorial I show how to improve user experience by hiding fields from PivotTable (client tool) so user does not have to see fields which are worthless for end user. Read more
In previous lessons we create basic PowerPivot model now it is time to see how it looks in Excel 2013 PivotTable. For some reason Excel 2013 Preview seems to allow to create PivotTable only from PowerPivot but I hope extra button will be added to PowerPivot tab in Excel. Read more
We continue creating our PowerPivot model using Excel 2013 by adding relationships. We use two methods "manage relationships" dialog box and using Diagram View (that has been introduced in v2) Read more
In this tutorial we start creating PowerPivot model in Excel 2013 (very similar in 2010) by importing data from our SQL Server 2012 data warehouse. Read more
We have created a simple tutorial for SQL Create Table that may help some of you to prepare for Microsoft Certifications (98-364 and 70-461). Read more
We found another Blog directory that is willing to accept our RSS feed. And we have been asked to put our activation code in our RSS Feed 8HBVGY7K4K5E If you are aware of any other website that would benefit from our RSS feed than we would appreciate the details! Take… Read more
In this blog post I will share steps I have taken to set up PowerView using Excel 2013. Hopefully tomorrow I will publish another post with Video on how I use PowerView with Excel 2013. Read more
In this blog post we cover instructions on how to enable PowerPivot in Excel 2013 (you can follow them in 2010 as well as they are very similar) and we will use this tutorial in next blog post and more specifically in blog describing how to use PowerView with Excel… Read more
Office 2013 Preview is not avialable. I'm particularly interested in Excel 2013 and new self-server BI features so I decided to write a blog post how to download and Install Office 2013 and next I will write blog post about the most interested feature for me which is PowerView. Read more
In this blog post I discuss Scrum (agile development methodology) and method to accurately estimate effort to complete sprint which can also be used to calculate cost of the project. Read more
Today I have decided to prepare myself for a meeting with a potential client (tomorrow) and write an article about BI Systems Architecture Diagrams as I will be most likely asked to compare my experience with their existing approach and I hope those diagrams will help me to make good… Read more
18456 is probably one of the most common errors people come across and in this article we try to cover all possible scenarios that will help you to resolve it. Read more
In this blog post we describe what is Data Manipulation Language (DML) and include this article in our exam guide for 98-364 database fundamentals and our SQL Tutorial. Read more
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