What is the best and fastest way to pick up a production database that the previous Oracle DBA left with no documentation? How do I determine what user applications are running on the server and where to find the aggregation programs in the database? Please give me some suggestions.
The data dictionary is your best friend! You can look at anything and everything contained in the database using data dictionary views. For example, you can see what is running against your database at any given time by using the following query from the data dictionary views v$session and v$sqltext:
break on sid skip 1 on username column sid format 999 column username format a10 SELECT a.sid,a.serial#,a.username,b.sql_text FROM v$session a,v$sqltext b WHERE a.username is not null AND a.status = 'ACTIVE' AND a.sql_address = b.address ORDER BY 1,2,b.piece;There are also lots of sites (including this one) where you can find lots of free tools and scripts to help you find your way through your database. The best advise I can give is to just dive in and explore!
For More Information
- What do you think about this answer? E-mail the editors at editor@searchDatabase.com with your feedback.
- The Best Oracle Web Links: tips, tutorials, scripts, and more.
- Have an Oracle or SQL tip to offer your fellow DBAs and developers? The best tips submitted will receive a cool prize. Submit your tip today!
- Ask your technical Oracle and SQL questions -- or help out your peers by answering them -- in our live discussion forums.
- Ask the Experts yourself: Our SQL, database design, Oracle, SQL Server, DB2, metadata, object-oriented and data warehousing gurus are waiting to answer your toughest questions.
Dig Deeper on Oracle DBA jobs, training and certification
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.