Introduction Oracle Zero Downtime Migration (ZDM) is a free to use software solution that allows you to automate your Oracle database migrations from on-premises to Oracle Cloud. Initially, ZDM supported Data Guard based migrations following the principles of Oracle Maximum Availability Architecture (MAA). To support Standard Edition migrations, ZDM uses RMAN backup and restore instead.…
Introduction There is no doubt that database servers should always be provisioned in a private subnet. However, in some cases, e.g. test and development, you’d like to connect to your databases over the internet using SQL Developer installed on your local (Windows) computer. The Environment My environment for this blog post consists of the following:…
Introduction Oracle Databases on Oracle Cloud are created using the Multitenant architecture. All databases are encrypted using Transparent Data Encryption (TDE) by default. All databases on Exadata, Bare Metal machines, and RAC on Virtual Machines use ASM storage management. For Single Instance databases on Virtual Machine DB systems you have the choice between Logical Volume…
Introduction Partitioned Tables allow you to subdivide tables into smaller pieces (partitions) that can be managed and accessed at a finer level of granularity. The nice thing is that it is entirely transparent to your SQL SELECT statements and to the application. External (Partitioned) Tables enable you to access data on external storage as if…
Introduction Oracle Multitenant enables you to migrate and consolidate multiple databases as PDBs into one CDB. However, these databases might be of different character sets. Starting with Oracle Database release 12.2.0.1, PDBs within the same CDB can be of different character sets, provided the CDB is created with the AL32UTF8 character set. By the way,…
Introduction This is a step by step instruction of the minimum steps needed to import your Data Pump dump files into Oracle Autonomous Database. Without installing anything! Before you export your data, have a look at best practices and what to consider when you migrate to Autonomous Database. Step 0: Upload you Dump Files into…
Introduction In the Oracle Cloud every newly created database from 12c onward uses the Oracle Multitenant Architecture. Transparent Data Encryption is also enabled by default. So, as soon as you use Data Guard and create new PDBs, you have to take care of copying the wallets to the standby server. We already discussed two approaches…
Introduction Creating and cloning PDBs in a multitenant environment is a simple and straight forward task, also when TDE is enabled. However, in a Data Guard environment where primary and standby use their own TDE wallets, it becomes challenging. In a previous blog we discussed how creating the master encryption key on the primary PDB…
Introduction A customer is having long upgrade times on-premises. As they are moving to the Cloud, I got the question whether their upgrade in the Cloud would be faster. First of all, when it comes to patching, upgrade, and migration, I can only encourage you to read the blogs by Mike Dietrich and Daniel Overby…
Introduction Have you ever experienced this before? You click on “Book Now” for a trip or a hotel reservation, but get “an unknown error has occurred”, or even no feedback at all? You are ultimately torn between packing your bags and repeating the booking process.To avoid such situations, Application Continuity is there. By the way,…
