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Database Administration & Monitoring

Mehdi Bada

MongoDB Days Paris

By | Database Administration & Monitoring | No Comments

Tuesday, October 6th 2015, I attended to MongoDB Days France in Paris. The presentation was directly organized by MongoDB (10gen). Several presentations have be done to show how to use and deploy MongoDB in real cases. MongoDB is a NoSQL database that provide high availability, data sharding and good performances in specific contexts. The event started with 2 global sessions (marketing presentation), to present which big companies use MongoDB and what are their use cases?…

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Olivier Toussaint

How to use sqldeveloper’cart for loading data into DBaaS

By | Database Administration & Monitoring | No Comments

Here we will show you how to unload data from a database on premise Oracle Database 12c PDB and how to load it into the table on the DBaaS Oracle Database 12c PDB. We will use a SQL Developer to unload data from tables of the CDB_MY_PDP_PREMISE PDB of the on-premises PDB MY_PDB, and to load data into table of the existing PDB1 PDB of the DBaaS ORCL CDB. How to Export Cart using insert…

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Olivier Toussaint

How to connect DbaaS in your Cloud Control 12c

By | Database Administration & Monitoring | No Comments

Oracle provides a monitoring console in the cloud but this console gives not all the information that we need. For example, it is not possible to send an email when a problem appear. However it is possible to use a Cloud Control on premise for monitoring this database. For that, it is necessary to have an EM12c release 5 and at least one agent installed. How to configure a local agent The first step is…

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Stéphane Haby

SSISDB is too big and it is not every time the retention period’s fault!

By | Database Administration & Monitoring, Database management, Technology Survey | 5 Comments

In all blogs that I read, the solution is just to change the retention period to a reasonable value. Yes, it is true but in some case you need to go deeper in the analysis… Like you, I changed the retention period, ran the cleanup but finally, I had always a big database… Why, Why, Why? My first step for this analysis, is to see in the SSISDB, the Disk Usage by Table Reports from…

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David Barbarin

SQL Server 2016 : tempdb database enhancements in CTP 2.4

By | Database Administration & Monitoring | 2 Comments

The new CTP 2.4 has been released and announced by Microsoft in its blog post a couple of days ago. During my investigation, I noticed some new  installer capabilities about the tempdb database. As a reminder, you can read my first thoughts from my blog post here, but to be short, the installer was able to provide automatically the right number of data files according to the number of existing CPUs and the best practices…

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Oracle Team

Query V$UNDOSTAT for relevant time window

By | Database Administration & Monitoring, Oracle | 2 Comments

By Franck Pachot . When you have a query failing in ‘ORA-01555: snapshot too old: rollback segment number … with name … too small’ you have two things to do: Convince the developer that the rollback segment is not too small because the message text comes from old versions Find information about query duration, undo retention and stolen blocks statistics. This is the goal of this post

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