Category Archives: Oracle 12c
As often, I use this blog to answer questions of training participants. This time, it’s the question what happens on interval-reference-partitioned tables when merging partitions or when updates cause row movement.
Some time ago I wrote on ORACLE_MAINTAINED database users in Oracle 12c. Next question is: how are these users connected to database features and can the users be dropped – and if yes, how?
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 … Continue reading
Last time I ran into an issue with RMAN when trying to register a new 22.214.171.124 database in my 126.96.36.199 RMAN catalog database.
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?