What is tns entry?
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Explain how you would restore a database using RMAN to Point in Time?
What is a cluster Key ?
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I have table-A(1,2,3)& table-B(3,4,5).what is the different b/w below questions? A union all B? B union all A?
Display the records between two range?
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Hi all, Can any one give answer for this question. Suppose im having employee table with fields, eno, ename, dept, address1, address2, address3. In address field employee can fill only address1 or address2 or address3... at a time he can fill three address fields. now i want all employee names who filled only one address field.. Plz its urjent can any one give querry.. Thanks in advance.
What are the different types of synonyms?
what is integrity constrains?
Oracle General 
