|
||||
|
Oracle 19c and 20c (preview) now contains Machine Learning algorithms directly can called from database itself. And as I am not at all expert in this and I was looking for right examples and came across this superb video on how to use them from none other than oracle analytics expert “Brendan Tierney” Oracle […] When flashback or point-in-time recovery is performed on the primary database, a standby that is in mounted mode can automatically follow the same recovery procedure performed on the primary When flashback or point-in-time recovery is performed either on a primary database or a PDB in the primary database, the primary […] DBA’s often kill the blocking sessions and from 19c (not sure which patch set) we have new parameter called MAX_IDLE_BLOCKER_TIME parameter which helps to specifies the maximum number of minutes that a blocking session can be idle. After that point, the session is automatically terminated. A session is considered to be a blocking […] Starting 19c , dataguard broker can be put in observe only mode instead performing FSFO. This will help to test the broker conditions that have met. There will be entries in the broker log or observer log indicating Fast start failover would have been initiated. DGMGRL> ENABLE FAST_START FAILOVER OBSERVE ONLY; […] EZConnect is something very useful to make fast connection calls without requiring a TNS. Problem is that, until now, if you want to use some value pairs likes SDU, RETRY_COUNT, CONNECT_TIMEOUT, this wasn’t possible and you would end-up using TNS. Now in 19c you will be able to write something like: sqlplus user/pwd@//DB:1521/host?connect_timeout=100&transport_connect_timeout=10&retry_count=3 […] Thanks to Vasu N for sharing the details and discussing on this. Issue with parallel hint on 19c CDB database where the hint is not honored and going for serial scans. Apparently seems to be Oracle bug Bug 30618478 – UPGRADE : SQLS WITH PARALLEL HINT RUNNING SERIALLY INTERMITTENTLY. Here is the test case for […] In Oracle 19c, one can submit the DML to readonly standby database. the internals of the database detect a dml on standby and redirect that dml to primary apply it on primary and apply to standby back. However this require careful consideration of redo generation and identify the potential dml’s or occasional dml;s that […] As per recent update in blogs.oracle.com, Oracle is planning to include a Standard Edition High Availability solution with Oracle Grid Infrastructure that provides cluster-based failover for Standard Edition Oracle Databases using Oracle Clusterware. Image Source: Blogs.oracle.com This will help customers who are on standard edition license to level high availability features that are […] Autoupgrade is compatible with 12.2 and 18.5 and you need to download the kit from 2485457.1 Autoupgrade.jar is available default in 19c How this works Prevent Issues : Analyze and Fixup Modes java -jar autoupgrade.jar -config config.txt -mode analyze java -jar autoupgrade.jar -config config.txt -mode fixups Simplifying […] In order to duplicate a database one must use rman duplicate command or manual procedure to copy and restore the files From 19c, DBCA facilitates duplication of db with new “CreateDuplicateDB” Requires easy connection string so that it duplicates the target db to wherever running § From 19c, ability to […] |
||||
Oracle 23c New Features for DBA's
Follow Me!!!