PostgreSQL

SQL Monitoring in PostgreSQL (1) – the logging system

When developing an application as well as when the application is in production there is the need to identify long running queries. In Oracle one tool you might use for that is the SQL Monitor. In this post I’ll(…)

Upgrading PostgreSQL to a new major release

The last post looked into how to upgrade PostgreSQL to a new minor version. In this post I’ll look into how to upgrade PostgreSQL to a new major version. This is not as simple as just installing(…)

Patching PostgreSQL to a new minor release

If you are used to patch Oracle databases you probably know how to use opatch to apply PSUs. How does PostgreSQL handle this? Do we need to patch the existing binaries to apply security fixes? The answer is: No.

Migrating the Oracle 12cR1 sample schemas to PostgreSQL Plus Advanced Server 9.4

This post takes a look on how to migrate the Oracle 12cR1 sample schemas to PPAS 9.4 (PostgreSQL Plus Advanced Server 9.4). I’ll not dig into how to install PPAS as this was described in detail(…)

Row level security is coming to PostgreSQL

Before PostgreSQL 9.5 (which is in alpha2 currently) you could grant access to individual columns of a table to users or roles. A little test script to demonstrate this: (postgres@[local]:5432) [postgres] > select version(); version -------------------------------------------------------------------------------------------------------------- PostgreSQL(…)

Representing ranges with one data type?

How many applications do you know that need to define a validity of a row? And how many of these do that by adding two columns: valid_from and valid_to or similar column names? Well, in PostgreSQL (you already suspect it(…)

Connecting your PostgreSQL instance to an Oracle database – The PostgreSQL 9.5 way

As you might know PostgreSQL 9.5 is currently in alpha 2. One of the new features will be the possibility to import foreign schemas. Having this it is no longer required to create all the foreign(…)

Connecting your PostgreSQL instance to an Oracle database

For integrating data from other systems PostgreSQL has the concept of foreign data wrappers. Many of these exist for different types of systems. In this post I’ll look into how you may connect PostgreSQL to Oracle. The(…)

Testing the just released PostgreSQL 9.5 Alpha in a docker container

On the 2cnd of July the PostgreSQL Global Development Group released an alpha version of the upcoming PostgreSQL 9.5. The same day, Josh Berkus, another of those PostgreSQL core team members released a docker image for(…)

Indexing for like/similarity operations

Indexing queries for like/similarity conditions is not that easy with the usual index types. The only option you have with btree indexes (especially if the wild-card is at the beginning of the filter) is to create a partial(…)