The case studies are based upon the Oracle demonstration database tables, emp and dept, owned by the user scott. In some case studies, additional columns have been added. The case studies are numbered 1 through 11, starting with the simplest scenario and progressing in complexity. These files are installed when you install the Oracle Database 12c Examples formerly Companion media.
A Real Case Study The other day, our data warehouse database was effectively down.
The database was up and running; but all connection attempts to the database would just hang. The ETL team reported that the processing slowed down to a crawl. So, in simple terms — she was stuck and she applied the age-old technique: She asked the SA to reboot the server.
It took about 30 minutes; and after it cam backup and the database started everything seemed normal for about 10 minutes. And, then the same problem stuck — the database got unresponsive. At that point, I was called for help. In this blog I am sort of trying to paint a picture of what I did in the next half hour or so to resolve the issue.
I hope by giving this running commentary of the events, facts and figures, you will follow my thoughts as I went about diagnosing the issue. Initial Analysis Obviously something is holding some resource back in the database; but what?
It was a classic case of Catch Action This is one of those cases where a backdoor entry to the database instance comes really handy. This option connects to the SGA; but does not open a session. Here are first few lines:Established in , Ohio University is the oldest College in the Northwest Territory.
Situated in Athens, OH, the University has made a reputation for its rich educational heritage and . Previous experience with DBA case tools (frontend/backend) and third party tools.
Tenix Solutions are an outsourcing company who provide infringement management Tenix Solutions are an outsourcing company who provide infringement management services to local and state government agencies. Note: The ECOM database is a simple container database with one PDB create after the installation of the cluster with dbca!
But it takes a lot of time! Successful but very long time to complete such small database! Oracle upgrade and migration case study from UK Oracle database specialists Pro DBA You are: Home > Oracle Solutions > About Pro DBA > Case Study – Finance Company Database .
CASE STUDY (Loading Data from Fixed Length file into Oracle). Suppose we have a fixed length format file containing employees data, as shown below, and wants to load this data into an Oracle table.
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