What are the different approaches used by Optimizer in
choosing an execution plan ?
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a query to select maxmun 3 salaries of employee table
What is Private Database Link ?
Explain the difference between a procedure and a function? What do you understand by those terms?
What is the sql query to concatenate column values from multiple rows in oracle?
How will you identify oracle database software release?
What are triggers?Where are they used?
What are the factors that affect OPTIMIZER in choosing an Optimization approach ?
How to add another datafile to a tablespace?
What is the maximum number of CHECK constraints that can be defined on a column ?
what r tyhe major differences between oracle 9i & 10g?
What a SELECT FOR UPDATE cursor represent.?