dbi services: Database Infrastructure Services - Engineering, Implementation, Operation, Modernization

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dbi services Blog

Welcome to the dbi services Blog! This blog focuses on database infrastructure and middleware topics. It covers technologies such as Oracle, Microsoft SQL Server, MySQL, Sybase, Linux, or Documentum (etc.). The dbi services blog represents the view of our consultants, not necessarily that of dbi services. Feel free to comment on the postings!

Saïd Mendi

Compression advisor: excessive redo log file generation

Last week at a customer site, we experienced an excessive redo log generation rapidly filling up the FRA (Flash/Fast Recovery Area) with archivelog files. This eventually caused the database to crash.

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Pierre Boizot

LOB : « enq : HW contention » 

Aprés le post sur « Utilisons les securefile », revenons sur le sujet LOB avec une approche performance, stockage. Nous rencontrons parfois des modèles de données étranges, nous aurions envie en tant que DBA de tout reprendre à zéro pour refaire un modele relationnel en 3eme forme normale (3NF), plus efficace et mieux conçu dans notre « RDBMS » favori, mais la réalité étant ce qu'elle est nous devons faire avec, et au mieux. De plus Oracle n'est pas qu'une base de données relationnelle :-) on l'oublie trop souvent.

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David Hueber

Oracle Basics (2) - Data Storage

What is finally the primary objective of a database? Storing Data Laughing


The question is, how Oracle makes it. For many beginners, a confusing topic is to get the picture between physical storage and logical one. So how does it work?

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