Aleph Technologies Blog

Applications come and go, data stays.

GDPR article mapping to RDBMs feature availability

To close the article series on GDPR and available features in each of the four database systems reviewed, I was made aware by a few acquaintances that a more clear mapping between the actual regulation text and the itentified tasks, along with the features available on each database system would be very helpful. This is the purpose of this article and I hope it will be of help to everyone trying to map.. Read More

GDPR demystified – Part 3 : Postgresql

In the previous posts, we discussed GDPR and how we could enforce it in the scope of Oracle¬† and SQL Server databases. We now cover the same topic with Postgresql databases in mind. As always, please refer to GDPR Data Security requirements laid down in the initial post. We will continue to walk the same task and activity structure for all RDBMs we cover. Let’s go to the identified GDPR tasks and requireements.. Read More

Improving fuzzy searches in postgresql with pg_trgm

I have been researching postgresql search capabilities for quite a while. Besides the very powerful Full Text Search capabilities the engine offers today, there are a few less known index types that support string searches in the form : where foo like ‘%bar%’ For these cases, a regular b-tree index on ‘foo’ is guaranteed to never be used. The following example illustrates a case in which a relatively simple query is transformed to.. Read More