Reading time ~25 minutes I need a document database. Why? There are areas in my problem generating (How to calculate 17 billion similarities) pet project cookit that are just asking for a document modelling approach. Most people will say that this is a straightforward problem to solve:Slap on MongoDB, and you are ready to go. It is NOT a good idea.Get email notifications about new posts: This article started as a way to structurize the comparison process but grew a bit more ( just like my previous ...
Bazy danych i XML 1828 dni, 3 godziny, 58 minut temu 104 źrodło rozwiń
Description of most common database change management approaches.
Bazy danych i XML 2208 dni, 3 godziny, 24 minuty temu 83 źrodło rozwiń
One of the most important things during a penetration test is to gain access to administrator account. If the application (for example webserver) is well configured, it is most often run with limited user rights, only able to run a specific application. When we can get low privileges access to the server using some vulnerability, the next step is to get higher permissions to read important files, continue network exploration etc. To do this, we must use the privilege escalation technique.
Odcinek 36. to powrót do baz danych. Ale w innej odsłonie: tym razem poruszamy temat NoSQL. Głównie: Mongo, ale nie tylko. Goszczę Grzegorza Bernasia. To pasjonat przetwarzania danych, a jego celem jest nauka poprzez działania i rozwiązywanie problemów. Swój chłop, co nie? 😉 Znajdziecie go na Twitterze: @profesor79pl.
Bazy danych i XML 3087 dni, 46 minut temu 51 źrodło rozwiń
Why does it happen? Why do we limit ourselves to relational databases only? Of course, there exists a set of situations in which relational databases are the best tool for the job, but – conversely – there exists a set of situations where relational database is a very inferior tool. Each type of tool has its purpose, limitations, and applications in which the tool will be the best. The important thing is not to look at the application from the point of view of a database only. We need to look at the ap...
Bazy danych i XML 3754 dni, 22 godziny, 37 minut temu 95 źrodło rozwiń
Rules of data conversion from document to relational databases This article is hypothetical divagation how to determine and use a set of rules to create relational schema based on MongoDB data. Using only step by step analysis without creating relational model from the very beginning, rules that emerge from that understanding should be simple.1. Quick Introduction to Data Model in Mongo DB1.1. Basic Concepts Table presents the various SQL terminology and concepts as well as the corresponding Mo...
Bazy danych i XML 3823 dni, 22 godziny, 31 minut temu 67 źrodło rozwiń
Selected Aspects of Document Synchronization in Distributed Systems Two of the projects in which I have participated recently, were distributed systems based on the document replication. Each of them was slightly different, which affected the solutions. In this article I’m going to present briefly the main assumptions and requirements for each of the projects, as well as the implemented solutions. I’m also going to mention a few important problems that we had to deal with.General description of ...
Bazy danych i XML 3855 dni, 4 godziny, 6 minut temu 65 źrodło rozwiń