What happens if you lost a data file?
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How can I combine multiple rows into a comma-delimited list in oracle?
Please explain me all types of Data models. Also give me the details if each model can have other name.for example:schematic data model is also known as conceptual data model and entity relation data model.
Give the different types of rollback segments.
What is proxy method?
what is the difference between authorization and authentication?
Which Functions Using Integer ==> String's i.e 2 ==> Two... Like that string's ==> integer values ? It is Possible ?
What are the logical operations?
17. Display the order number and average item cost for each order.
Explain 1st, 2nd, 3rd normalization form of data base
how to retrieve 1st and last row of table without using group functions??
how to handle exceptions in post production
Explain what are the uses of rollback segment?