dbi services Blog

Diese Frage habe ich in den letzten Jahren öfters gehört. Zumindest seitdem die DBAs Oracle Datapump verwenden anstatt des alten Export/Import Tools. Angeblich war es früher mit dem Import-Parameter-Tool „INDEXFILE“ viel einfacher. Tja, die Wahrheit ist: Mit Datapump geht es noch leichter!

Well, this last day really was funny! We met some old friends (they will recognize themselves) and also Oracle guru Jonathan Lewis. We must confess Larry Ellison really has good friends. His America's cup boat is really amazing (see picture below) as was last night's party.

I have had the pleasure to go the Real World Performance presentation with the famous Tom Kyte of the Ask Tom blog, Andrew Holdsworth, Head of Oracle’s Real World Performance Team, and Graham Wood, the legendary Oracle Database performance architect.

Nous avons dans les articles précédents vu comment installer PostgreSQL et quels étaient les composants d'une base. Nous abordons maintenant le point de l'action sur le moteur avec deux outils orientés administration de la base, généralement utilisés par les DBAs. Il s'agit de psql et de PgAdmin. Nous aborderons aussi dans cet article la configuration de connexion au travers des fichiers de configuration du serveur.

Dans mon dernier article sur PostgreSQL, j'ai présenté l'installation du logiciel en explorant les 2 solutions suivantes, l'installation Debian et l'installation EntrepriseDB. Ces deux installations créent immédiatement un cluster de base de données, Debian nous imposant le point de stockage et EntrepriseDB nous proposant de saisir une destination. Je vous propose maintenant d'explorer ce qui a été installé sur votre disque à la mise en route de ce cluster de base et d'analyser les différences entre les deux installations.

This morning, I was very happy to go to my first TechEd.

Between the 10 seminars, as I said yesterday, I started with SQL Server 2008R2/2012 performance, tuning and optimization session. The thing is that we had just one session for the whole day.

Recently, during one of my missions, a client asked me to give him access rights to the SQL Server logs from SSMS to his application managers. As you know, you must grant the role “securityadmin” to have such rights. However, with this role you can also manage logins, CREATE DATABASEs and change passwords.

These are “too many rights” for an IT manager, but there seems to be no other way ... or is there?

Since the third CTP version of SQL Server 2012 (codename Denali), there are some new features available to provide an additional value like the for other Microsoft SQL Server versions. These are pooled in the so called 'Feature Pack' as well as in the 'Manageability Tool Kit'. Both are already available, but not in the final version. I have compiled all information in this blog to find it easily. All DBAs should know that Feature Pack exists, how to find it, and of course use it.

Starting with MySQL 5.5 it is possible to configure semi-synchronous replication. As you probably know, MySQL replication is asynchronous by default. Asynchronous replication means that events/transactions applied on one server are not immediately applied on the other one.

For a few months, I have been testing the new  SQL Server 2012 (codename Denali) and I was very surprised from the DMVs of this version. Dynamic management views (DMVs) return server state information that can be used to monitor the health of a server instance, diagnose problems and tune performance. I will focus on some DMVs which are very interesting for a DBA.