What is Redo Log Buffer in Oracle?
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If any one has information regarding interview of NIC (National Informatics Centre),it would be of great help...
What is a sub query? Describe its types?
Display the order number and the number of months since the order was shipped for all orders that have been shipped in the last year (365 days). (Hint: Unshipped orders will have a null value).
What is a package in oracle?
how will I find the first 5 highest salaried employees in each dept in oracle.
What does ROLLBACK do ?
How to update a table row with a record?
What is the fastest query method to fetch data from the table?
If a table column has is UNIQUE and has NOT NULL, is it equivalent to a PRIMARY KEY column?
What are the values that can be specified for OPTIMIZER_GOAL parameter of the ALTER SESSION Command ?
What does COMMIT do ?
State the difference between a primary key and foreign key?