This new feature was already being expected for a while. Out of the blue, while I was delivering an online class, there it was, looking to me. Waiting for me to figure out how it works and explain it to my students. Luckily, the feature is very simple: You click a checkbox and you will … Read more
Almost every environment now a days need to source data from different source system. Here is how you can establish connection using Attunity Connector from Microsoft SQL Server to Oracle Database from SSIS. This method is extremely fast if you want to land millions and millions of records on the fly from Oracle to SQL Server. … Read more
Policies in Azure are like Wally. They are there, but not obvious to find, hidden in the middle of many services, waiting for someone recognize their importance. Why do we need Policies Billing The billing control in Azure has by itself many different reasons to enforce policies. You, with your single Azure subscription, may think … Read more
I have to deal with XML data with PowerShell. That’s fine, but I always find myself sighing when I need to read an XML object. I have a copy of ‘XML in a Nutshell’. It is over six hundred pages of essential information on XML. Some nutshell. XML is, I believe, a way of representing … Read more
Everyone needs deadlines. Even the beavers. They loaf around all summer, but when they are faced with the winter deadline, they work like fury. If we didn’t have deadlines, we’d stagnate. ― Walt Disney I hate deadlines. Really. I truly hate them. The problem is: they are usually unrealistic, often not much more than a wild … Read more
Log Analytics is a basic tool for the entire Azure environment, I wrote about it before. The possibility to access log analytics data from a tool for analysis, such as Power BI, only increases its importance. There are some options to make this access and we expect these options to improve very soon. Using Notebooks … Read more
Azure technologies evolve so fast sometimes we lose track of what’s happening. One day, a simple technology is created, on the next day, it becomes something huge, in a blink of an eye. I’m not even sure if my recollection of the story will be correct. The launch of the GA version of Static Web … Read more
.There are some interesting ways to transform queries from Power BI Desktop to Power BI dataflows in the portal. The UI can be a bit confusing. I made some mistakes in the middle as well. Let’s see some options to make the conversion. Leaving Blank Query Blank Create a new dataflow Select Blank Query as … Read more
Azure Monitor and Log Analytics are a very important part of Azure infrastructure. In my opinion, the adoption of these tools should start before a company starts its migration to azure. Using these tools over on premises servers can generate a performance baseline to be used when migrating the servers, ensuring the environment will be … Read more
The Malta Data Saturday is finishing. I still need to compile the numbers, but the comments and feedback are great. Let’s talk a bit about the story of this conference and I hope this story can provide it’s 2 cents to the build of our new era, at least starting many discussions about do’s and don’ts … Read more
After a young developer (or database developer) learns about normalization, the quality of his databases increases a lot, there is no doubt about that. However, sometimes we need some denormalization, even in production databases. I faced some experienced developers that, although, they would agree this should be analyzed in a case-by-case scenario, they never saw … Read more
Last Friday I appeared in the middle of a Brazilian Twitch live made by a friend and while they were talking and studying, I provided some links full of content to them. Nowadays, there are a lot of free content on internet. Not only free content, but also content well organized in a good sequence … Read more
One of the interesting things about working with many-to-many relationships in SQL Server with graph tables instead of a relational table is that unlike a relational many-to-many table, by default an edge may can implement relationships from lots of different tables (nodes). You can also limit what nodes can be related using which edges. For … Read more
The last year hasn’t been easy and most of us, especially in the IT world, have learnt to exist inside our own 4 walls. One thing that has kept my husband and I (we are both DBA’s!) going is the data platform community. The community has given me so much over the years, the satisfaction … Read more
Or: How to make magic tricks with T-SQL Starting our magic show, let’s first set the stage: Count Distinct doesn’t work with Window Partition Preparing the example In order to reach the conclusion above and solve it, let’s first build a scenario. Using Azure SQL Database, we can create a sample database called AdventureWorksLT, a … Read more
Edge constraints were added in SQL Server 2019 to make the node to edge relationship stricter/enforced, and more like typical foreign key constraints. When used, they define what node types can be used in the from and to position of the edge. What makes edges different than a many-to-many relationship in a relational table is … Read more
One of the weirder things about graph tables in SQL Server is the mysterious backend implementation. The values you see when working with these objects look like this: {“type”:”node”,”schema”:”dbo”,”table”:”Node1″,”id”:0}, but when you get errors, you don’t see the json, you see what this represents (two integers for the object_id and unique id in the graph … Read more
Until now, one common knowledge about Power BI was how Power BI Premium subscription is expensive. We, regular mortals, could only dream with the full set of features offered by Power BI Premium. The new announcement is a complete game changing for the enterprise self-service BI technology: Power BI Premium per User will be available … Read more
As I am working with graph tables, I find some quirks exist that make them interesting to work with. One of them is how the values show up in some error messages (in particular from unique indexes). Instead of the details you expect\hope (Something like the JSON value you find in the id columns in … Read more
Parameter sniffing is a common challenge for query tuning. The usual solution we recommend is to apply a recompile option, rather to a stored procedure or a query. If the development team gets used to this, suddenly you will see recompile options all around. Query Tuning 101 The parameter sniffing problem appears when the data … Read more
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