Today was the first day of the annual DOAG conference. I had a presentation „Application Containers – Multitenancy for Applications with Oracle Database 12c Release 2“. You can find the presentation and the demos here:
With Oracle 12c, Oracle introduced “extended data types”, which raise the limit for CHAR and VARCHAR2 datatypes from 4000 bytes to 32767 bytes. However, this is not the default setting and it takes some steps to change this setting. Especially in a Multitenant environment.
When creating a CDB and at least 1 PDB, DBCA creates the well known users SYS and SYSTEM and the user PDBADMIN. Where is this user created and which privileges are granted to PDBADMIN?