Creating Multiple Indexes on the Same Set of Columns
You can create multiple indexes on the same set of columns when the indexes are different in some way.To create multiple indexes on the same set of columns, the following prerequisites must be met:The...
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The Oracle Big Data Solution
Oracle Big Data Appliance is an engineered system comprising both hardware and software components. The hardware is optimized to run the enhanced big data software components.Oracle Big Data Appliance...
View ArticleSoftware for Oracle Big Data
The Oracle Linux operating system and Cloudera's Distribution including Apache Hadoop (CDH) underlie all other software components installed on Oracle Big Data Appliance. CDH is an integrated stack of...
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Software Component Overview for Oracle Big Data
The major software components perform three basic tasks:AcquireOrganizeAnalyze and visualizeThe best tool for each task depends on the density of the information and the degree of structure. Figure 1-2...
View ArticleOracle Big Data SQL
Oracle Big Data SQL supports queries against vast amounts of big data stored in multiple data sources, including Apache Hive, HDFS, Oracle NoSQL Database, and Apache HBase. You can view and analyze...
View Articleora-28040 no matching authentication protocol in 12C
ERROR:--------------------------------ora-28040 no matching authentication protocol in 12CSOLUTION:-------------------------------1. Edit the sqlnet.ora file of the 12c database.2. Remove or comment...
View ArticleOracle Reports taking more time to load when huge number of users are using...
ERROR:Oracle Reports taking more time to load when huge number of users are using at a timeError in log file2016-07-22T14:50:04.163+05:30] [WLS_REPORTS] [INCIDENT_ERROR] [REP-56048]...
View ArticleREP-56055 exceeded max connections allowed Oracle Reports Erro
ERROR:REP-56055 exceeded max connections allowed Oracle Reports ErrorSOLUTION:1. Find the file $DOMAIN_HOME/reports/conf/repservername.confwhere $DOMAIN_HOME is your applications (not infrastructure)...
View ArticleScript to find Oracle database performance
This single script provides the overall picture of the database in terms of Waits events, Active/Inactive killed sessions, Top Processes (physical i/o, logical i/o, memory and CPU processes),Top CPU...
View ArticleScript to check the node Eviction (RAC)
#!/bin/bash. ~/.bash_profilemailid=’nimai.karmakar@hotmail.com’date=`date +%Y-%m-%d” “%H:`alertlog=/rac/app/oracle/product/11.2.0/dba-scripts/logs/ioerr.logerrlog=err_`date –date=”0 days ago”...
View ArticleIdentify the datafiles in number of hosts in hostfile
for host in `cat ~oracle/.rhosts|\cut -d"." -f1|awk '{print $1}'|sort -u`do echo "" echo "************************" echo "$host" echo "************************" # loop from database to...
View ArticleShell script for Database COLD Backup in Linux and Solaris
# ################################################## Database COLD Backup Script.# ################################################## ############ Description:# ###########echoecho...
View ArticleScript to unlock locked users
# ############ Description:# ###########echoecho "================================="echo "This script LOCKS database users."echo "================================="echosleep 1#...
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Log File Location in EBS R12Alert Log File location:$ORACLE_HOME/admin/$CONTEXT_NAME/bdump/alert_$SID.logTrace file location:$ORACLE_HOME/admin/SID_Hostname/udumpApplication Tier LogsStart/Stop script...
View ArticleTo find database redo logs and switches per day
Query for finding database redo genration and swiches happen per day:select trunc(completion_time) rundate,count(*)logswitch,round((sum(blocks*block_size)/1024/1024)) "REDO PER DAY (MB)" from...
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OEM Critical Alerts:Grid Control Reports Incident (Bea-337 [Weblogicserver])==========================================================We can see the below errors very often in OEM screens:Incident...
View ArticleUnreachable Alerts in OEM with error meassage as 'Agent to OMS Communication...
Sometimes, we can see number of alerts stating that OEM is unable ping agent(Agent Unreachable)But when we the check the status of the agent ,it shows up and and running...Investing further we have...
View ArticleError: Primary database is in MAXIMUM PERFORMANCE mode
Error:RFS[4]: No standby redo logfiles of size 102400 blocks existFix:In standby database, if you have online log and standby log are in different size, you will get this error. The easy way to check...
View ArticleTo check the master node in RAC environment
In 3 node RAC setup,In initial stage--node 3 is the master node.[oracle@host01 ~]$ cat $ORACLE_HOME/log/host01/cssd/ocssd.log |grep ‘master node’ |tail -12016-09-24 10:14:36.949: [...
View ArticleTo change timeout settings in cluster
CSS ADMINISTRATION:crsctl get css diagwait The time limit to update the respective logfilescrsctl get css disktimeout Disk Latencies in seconds from node-to-Votedisk. Default Value is 200. (Disk...
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