Explain the use of online redo log files in oracle.
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what is mean by prmary key and foreign key and how can we diffrentiate that? Please answer me. Advance thanks.
Explain a segment?
How to estimate disk space needed for an export job?
Can I create users through internet explorer in oracle 10g?
What is an Index ?
What happens if the imported table already exists?
21. Using a set operator, display the client number of all clients who have ever placed an order and whose whose name does not contain the string Sm.
Whether Oracle satisfy more codd rules or db2 satisfy more codd rules? How meny of each can satisfy ? Please answer me. Advance thanks
what is null value?
What is the scope of a local variable?
Explain 1st, 2nd, 3rd normalization form of data base
The table has 3 columns 4 rows. The output is which column has least null values( A COL SHOULD BE THE OUTPUT) Write the query plz. A B C ---------- 1 NULL 7 2 4 NULL NULL 5 NULL 3 NULL NULL