In this article we will talk about one of the ACID properties of RDBMS and more specifically about the Isolation property. During relational database transactions, many users will try to access the same data… read more
How do we restore a specific page only in SQL Server
In the article we will analyze what we can do in the case of page corruption in SQL Server. It is possible to restore only the specific page and avoid restoring the entire database through the backups we have (just... read more
How to make charts in Microsoft Excel using Python
In Microsoft Excel, in addition to using functions and pivoting, we have the possibility to add graphs based on this data. But we know that graphs can also be made using Python with libraries such as matplotlib and seaborn.… read more
How do we automatically save attachments we receive in email (Microsoft Outlook)
How would it feel if attachments sent by a certain sender with perhaps a certain title and many others perhaps, could automatically be archived in a computer folder dated? We also wouldn't be able to upload them like that... read more
How do we collect long-running queries via Extended Event and how do we read its data
Many times we will need to find how many and which SQL queries were executed for a long time in a period of time in SQL Server. The easiest solution with the least performance impact is to create an Extended Event. The… read more
How we can easily backup metadata in an Oracle database
Sometimes we need to backup a procedure, a package, a function, etc. (the so-called metadata) so that we can see its code or keep it somewhere so that we can restore it if necessary. In this article we will see… read more
How to write advanced SQL queries
In a previous article we analyzed what SQL (Structured Query Language) is and how it is used with basic examples. In this article we will see its more advanced functions. The code is written with the Transact-SQL extension… read more
Useful VBA routines in Microsoft Excel (Part 1)
We have talked in a previous article about what VBA (Visual Basic for Applications) is and what possibilities it has within Microsoft Excel. In this article we will look at some routines I have written that can be executed by calling the… read more
What are SQL Joins and how tables are related to each other
Relational databases rely on relationships between their entities (tables and views). However, in order to be able to call associated records from two or more tables / views above, we must somehow declare with which field... read more
