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Help portal for Oracle database errors

Oracle has introduced a new, much faster and more interactive Error Portal. In this document, we show you how to configure it so that it can be used with the smart search function of major browsers, such as Chrome. In other words, with this configuration, you will have a mechanism where by typing a predefined shortcut (usually
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Hide / obfuscate PL/SQL code (WRAP)

Sometimes it is necessary to hide (obfuscate) our PL/SQL source code. This utility should be used judiciously, it is not about hiding all the available code, but only that which for security reasons, should not be shared with third parties. The method used has been traditionally performed with the WRAP tool, which we detail below
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Add disks to ASM

With the Grid environment variables set, run the following command: ./u01/app/oracle/21.0.0/grid/bin/asmca The ASM graphical configuration screen will appear; click on the "Disk Groups" option. Select the disks that will belong to the disk group you are creating. These are the disks listed as "candidates" in the second column. Select disks of the same size.
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Restore a table with RMAN

En la versión 12c, se introdujeron muchas y muy útiles nuevas funcionalidades. Entre ellas, la posibilidad de recuperar una tabla con RMAN. Esta característica se aplica tanto a arquitecturas Multitenant como no Multitenant, permitiéndote recuperar una tabla de una PDB si ese fuera el caso. En el siguiente enlace podemos encontrar la nota oficial: RMAN
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Adding Disks to ASM Linux UDEV Systems

In this post show you how to manually add disks to the Linux operating system. We will also explain how to set them up so that they can be used to store data from our Oracle database. First, we will list the disks we have in our virtual machine. There are two ways to do this:
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How to Create a PDB

CREATE AN APPLICATION PDB "Application containers" are a feature of Oracle Database version 12.2. An "application container" is an optional CDB component used to store data and metadata for an application. A CDB can have zero or more application containers. Each application consists of a configuration, metadata, and shared objects.
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Add disks to ASM file systems

In this post show you how to manually add disks to the Linux operating system. We will also explain how to set them up so that they can be used to store data from our Oracle database. First, we will list the disks we have in our virtual machine. There are two ways to do this:
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