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Category: How To

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Here you can find all blog posts about the Category: How To. You can go back to all blog posts or take a look into our other categories & tags.

SQL trickery: Hypothetical aggregates

by Hans-Jürgen Schönig | 06.2020
“If we had this data what would it mean?” - read more about this PostgreSQL technique, what it is good for & how it works.

Wrapping DB2 with PostgreSQL

by Marcelo Diaz | 06.2020
Connection of DB2 with PostgreSQL done with the extension db2_fwd | Migration of db2's data to PostgreSQL | Read data from DB2

SQL trickery: Configuring window functions

by Hans-Jürgen Schönig | 05.2020
How to use window functions and analytics - these have long been around in PostgreSQL and are widely used by advanced developers.

Partition management - do you really need a tool for that?

by CYBERTEC Guest | 05.2020
How to use partition management to speed up queries in PostgreSQL and make tables more manageable as data amounts grow.

How to count hits on a website - concurrent counting in PostgreSQL

by Hans-Jürgen Schönig | 05.2020
How to grant users access to a certain piece of data a limited number of times. What happens if two users access it concurrently?

PostgreSQL: now() vs. 'NOW'::timestamp vs. clock_timestamp()

by Hans-Jürgen Schönig | 05.2020
How to use the PostgreSQL: now() vs. 'NOW'::timestamp vs. clock_timestamp() | Issues with time and date in PostgreSQL database applications

Series Forecasting with Recurrent Neural Networks (LSTM)

by CYBERTEC Guest | 05.2020
How to build your first Recurrent Neural Network (RNN) for series forecasting | Usage of Long Short Term Memory (LSTM)

Speeding up count(*): Why not use max(id) - min(id)

by Hans-Jürgen Schönig | 04.2020
The usage of max(id) - min(id) to speed up count(*) may seem like a good approach when it comes to speeding up the process, but it can be problematic.

Intersecting Tracks of individuals – MobilityDB

by Florian Nadler | 04.2020
How to use MobilityDB for contact tracking. Extension built on top of PostGIS, specializing on processing and analysing spatio-temporal data

Intersecting GPS-Tracks to identify infected individuals

by Florian Nadler | 04.2020
PostGIS' functions can be used to trace down infected people and their contact with healthy individuals | GPS-Tracks | spatial data
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