On : 19.18.0.0.0 version, Patching After applying a RU Patch , CATALOG / CATPROC Component goes Invalid with lot of...
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SELECT to_char(begin_interval_time,’YY-MM-DD HH24′) snap_time, dhso.object_name, sum(db_block_changes_delta) BLOCK_CHANGED FROM dba_hist_seg_stat dhss, dba_hist_seg_stat_obj dhso, dba_hist_snapshot dhs WHERE dhs.snap_id = dhss.snap_id AND dhs.instance_number...
ORACLE_HOME disk (filesystem) became full and caused an ASM error... Got the following errors in the alert log file: ORA-01148:...
SAR is used to collect, report or save system activity. SAR stands for System Activity Report. SAR is used to...
The top utility is a commonly used tool for displaying system-performance information. It dynamically shows administrators which processes are consuming processor and...
Traditional startup/shutdown command prior to 12c. Shutdown Command SHUTDOWN NORMAL SHUTDOWN IMMEDIATE SHUTDOWN ABORT Startup Command STARTUP STARTUP NOMOUNT STARTUP...
After performing database upgrade from 12.1.0.2.171017 to 12.2.0.1.171017, PDB is shown in RESTRICTED mode. SQL> show pdbs; CON_ID CON_NAME OPEN...
Archivelog gap set pagesize 320 set linesize 200 set wrap off select thread#, sequence#, applied,to_char(first_time,’mm/dd/yy hh24:mi:ss’) first,to_char(next_time, ‘mm/dd/yy hh24:mi:ss’) next,to_char(completion_time,...
Private SQL area holds information about a parsed SQL statement and other session specific information for processing. When a server...
Overview Benefits What can be done Different Instances Users (Interview Question) User Power User Admin Mode (Interview Question) Fast Smart...
Single Client Access Name (SCAN) is a feature used in Oracle Real Application Clusters environments that provides a single name...
Materialized views are query results that have been stored or "materialized" in advance as schema objects. The FROM clause of...
Components: The primary components in the Splunk architecture are Forwarders, the Indexers and the Search Head. Forwarders:The forwarder is an...
What is the shared pool ? Oracle keeps SQL statements, packages, object information and many other items in an area...
When you are taking backups regularly to a specified disk then after some period of time the backup disk will...
While trying to rollback the conflicting patch 18893947 applying patch 21967332 $ opatch rollback -id 18893947 Oracle Interim Patch Installer...
The undo tablespace can have many datafiles, but if it has at least 1 datafile with autoextend=on then the tablespace...
Determine if a Specific MVIEW is Being Refreshed: column owner format a15 column username format a15 column mview format a15...
Maximum Protection Mode 1. No data loss 2. Redo has to be written to both Primary redo logs and standby...
It has been seen in cases where ORA-16401 and ORA-16055 reported in primary alert log when redo log switch is...
Database server crashed after memory on server used by inactive sessions The Following Example used to illustrate the scenario for...
We may need to find the database growth for different periods in the past. This Article provides the queries to...
Below Are the differences b/w exp/imp vs Datapump 1. Datapump operates on a group of files called dump file sets....
When executing a Materialized View refresh an ORA-01555 is returned. This returns the following type of error either in the...
Refreshing a Materialized View via the Oracle job scheduler reports the following errors, however manual refresh succeeds. *** SERVICE NAME:(SYS$USERS)...