What parameters control copy latches?
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What are bind variables and why are they important?
What is dba training?
How can you find your id on a system?
You look at the dba_rollback_segs view and see that you have a large number of wraps is this a problem?
What does database administrator do?
Explain dual table. Is any data internally stored in dual table. Lot of users is accessing select sysdate from dual and they getting some millisecond differences. If we execute select sysdate from emp; what error will we get. Why?
System tablespace cant be exported from one database and imported into another why?
You see multiple extents in the temporary tablespace. Is this a problem?
How can you determine if an oracle instance is up from the operating system level?
Explain the process you follow to start looking into performance issue at database level(if the application is running very slow, at what points do you need to go about the database inorder to improve the performance?)
What is the difference between a materialized view (snapshot) fast refresh versus complete refresh? When is one better, and when the other?
What is explain plan and how is it used?