Microsoft in the era of the Cloud with Azure decided to give as many options as possible so that everyone is satisfied. Whether you are fans of on-premise or hybrid cloud. With SQL Server in Virtual Machine services… read more
How do we find what's slowing down queries in SQL Server?
Many times we will see that a query is delayed and we would like to know what is delaying it. To do this we need to know the wait types and what each of them means. Specifically… read more
What is Tabular model and how it differs from Multidimensional in SQL Server Analysis Services
Microsoft in Analysis Services for the creation of Business Intelligence (Data Warehouse) beyond the use of Multidimensional Cubes also provides the Tabular model approach. Tabular models are new, faster to build and easier to use.… read more
How to install SQL Server on Linux
In this article we will see how easy it is to install SQL Server 2019 on a machine with a Linux operating system and more specifically on a Red Hat distribution. We will also see how we connect and how we can… read more
How we collect blocking queries via Extended Event and how we read its data
In an earlier article we saw how we create an Extended Event to see queries with a long duration. In this article we will create an Extended Event that records blockings. All we need to do is create it… read more
The Great Database Battle – SQL Server vs Oracle Database
The two best-known RDBMS (Relational Database Management Systems) with the largest market shares are Microsoft SQL Server and Oracle Database. They have a lot in common but also a lot of differences between them. Let's see in detail: Filegroups: They are… read more
How do we find how much more it takes to complete the query and which is delayed (SQL Server Query Profiling)
Many times we will encounter queries that take too long to complete or never complete at all. To find what exactly is at fault the most useful information is the actual execution plan. As the actual execution plan requires the completion of the query, with… read more
How can we calculate our car insurance premiums in SQL Server using Python (no API)
Let's say we have in SQL Server a table of cars and drivers and we want to find their cheapest premium. This will certainly be possible with an API / Web Service. But this solution would require the… read more
How to force a plan in SQL Server and why not
Sometimes, depending on the value we have given to a parameter, a query may run with a different plan (execution plan) and have a different duration. This phenomenon is called parameter sniffing. This may be due to… read more
