Database management

Mysqldump issue – SELECT command denied to user

During one of my last MySQL mission, I encountered a “security error” with mysqldump. The mission was about migrating a MySQL database from one box to another MySQL version and from Windows to Linux with different users. In order(…)

Configuration des options en Oracle 11g EE avec ‘chopt’

La configuration des options sous Entreprise Edition avant Oracle 11g pouvait être un véritable parcours du combattant. Donc, une attention particulière devait avoir lieu avant l’installation des binaires Oracle; à savoir quelles options devaient être installées! Depuis la version 11g,(…)

Oracle Automatic Memory Management: real memory usage!

When using Automatic Memory Management for Oracle, it is sometimes difficult to monitor the memory usage and in particular to find the right tools to get the right information about currently allocated structures. The instance which will be analyzed has(…)

Oracle Enterprise Manager 12c: creation and management of administrators through emcli

Cloud Control 12c (and the former Grid Control 11g) offers the possibility to create administrators and manage their privileges through the “emcli” command line utility. The main advantage of this method (based on scripts) is to be able to reproduce(…)

Migrating to Oracle OEM Cloud Control 12.1.0.2.0

I recently upgraded from Enterprise Manager Cloud Control 12.1.0.1.0 to the most recent version 12.1.0.2.0. This document describes the migration procedure and the different problems encountered. The first point to know when you are about to upgrade an existing Enterprise(…)

Risk and Health Assessment Program for Microsoft SQL Server

I recently had the chance to go through a so called Risk and Health Assessment Program for Microsoft SQL Server (SQLRAP) at one of our clients. The SQLRAP assesses your SQL Server implementations to ensure proper productive use. It is(…)

SQL Server 2012: SQL Server Data Tools (SSDT) – Schema and Data Comparison

In my life prior to SQL Server, I worked with Visual Studio Team System (VSTS). The “Schema and Data Comparison” feature of SQL Server 2012 Data Tools is a direct descendant of Visual Studio for Databases Professionnals (aka Data Dude)(…)

“ORA-01665: control file is not a standby control file”: what can I do?

You have certainly also received this error once in you Oracle DBA career: “ORA-01665: control file is not a standby control file” while trying to create a standby database with RMAN through a full database backup. In fact, the feature(…)

SnapManager for SQL Server: databases limitation policy

I recently talked to a customer about SnapManager, its recommendation on the number of databases and about a way to prevent the creation of more than 35 databases. The NetApp recommendation is no more than 35 databases on a single(…)

Oracle Enterprise Manager 12c – Database Target remains in Pending state (SLES x86_64 target)

Last month I was confronted to a very interesting and strange problem while deploying a Cloud Control 12c infrastructure. One of my monitored server was a SuSE Linux Enterprise Server (SLES) 64 bits on which a 11.2.0.3 Oracle database was(…)