various types of hints and their usage
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What is a subquery in oracle?
Give the various rollback segment states.
Table Has C1 And C2 Column If Exits any record in c1 then Update c2 record Otherwise insert new record in the C1 And C2 (Using Procedure)
Is primary key = unique key,not null? If yes,please explain IF No,please explain
Select the Nth lowest value from a table?
What is the difference between translate and replace?
Why is oracle database so popular?
What is the fastest query method to fetch data from the table?
Difference between varchar and varchar2 data types?
In my table i have 4 columns with 100 records but in that 4 columns one column contains all NULL values so can i add NOT NULL CONSTRAINT on that column......... ok if it is not possible, can i add NOT NULL CONSTRAINT from 101 Record Onwards?
How to invoke the original export import utilities?
Name the various constraints used in oracle?