What is an artificial (derived) primary key? When should an artificial (or derived) primary key be used?
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If you see a pin hit ratio of less than 0.8 in the estat library cache report is this a problem? If so, how do you fix it?
What is explain plan and how is it used?
Which function is used to find the largest integer less than or equal to aspecific value?
If a tablespace has a default pctincrease of zero what will this cause (in relationship to the smon process)?
What is a dba why is this position necessary?
Explain the wait events in statspack report 'enqueue'?
System tablespace cant be exported from one database and imported into another why?
How can you tell if an index on particular table is used or not used in 9i?
What do you understand by recovery catalog?
What are types of data model?
What is da in database?
What is a production dba?