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  • Andre van Winssen

Andre van Winssen

I am an Oracle software professional since 1990 and interested in everything around Oracle databases, weblogic, security My professional certifications: CISA & CISSP-ISSAP, OCM 10/11/12.
  • Oracle 12
  • sqlplus

after 27+ years in Oracle land I am forced to patch sqlplus

Andre van Winssen June 30, 2017 2
after 27+ years in Oracle land I am forced to patch sqlplus

When starting to use sqlplus 12.2 I noticed that my SQL prompt was not changing to what login.sql told it to be. This did not happen in sqlplus 12.1 or lower versions. Maybe this is a bug, maybe a new feature I thought. Behaviour in 12.2 of sqlplus indeed has […]

  • Architecture
  • DBA Oracle
  • ExaData
  • Oracle 12

You are in trouble when more than 8 kernel options are enabled in oracle executable

Andre van Winssen September 14, 2016 1
You are in trouble when more than 8 kernel options are enabled in oracle executable

A brief headsup for everyone responsible for maintaining kernel options in the oracle executable. The environment where I discovered this is a 3 node racattack cluster with Oracle GI & RDBMS 12.1.0.2.0. After enabling Unified auditing in my 12.1.0.2 database I noticed that all of a sudden database startup started […]

  • Cyber Security
  • Databases
  • Deployment
  • Oracle
  • Oracle 12
  • PL/SQL
  • Software Development
  • SQL

One of the many nice new features in 12c database: code based access control

Andre van Winssen September 5, 2016 1
One of the many nice new features in 12c database: code based access control

Topic of this blog is a nice new feature in 12c, not the plsql package I built that’s using it. So here’s the story.. For one of our customers we needed to have a simple schema comparison tool that would be able to check, as part of application deployment activity, […]

  • Database
  • Databases
  • DBA Oracle
  • Oracle 12

12c DBCA skips database-patching activities

Andre van Winssen October 6, 2015
12c DBCA skips database-patching activities

Thanks to colleague Patrick Roozen I learned that there’s a tiny little flaw in Oracle databases 12c patch procedures when using DBUA (upgrade) and DBCA (create custom database) when SPU/PSU/BP are installed on top of the base release. This is described by Mike Dietrich in a recent blog. Oracle Support […]

  • Architecture
  • Cyber Security
  • Database
  • Enterprise Manager
  • Oracle 12

Use DB Vault to protect password strength policy

Andre van Winssen July 20, 2015
Use DB Vault to protect password strength policy

Suppose your organization wants to enforce a security policy on database password strength. The DBA’s have implemented a password strength verification function in PLSQL such as the oracle supplied ora12c_strong_verify_function in the DEFAULT profile of the database. There seems no way to get around it at first: Database account u4 […]

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