28. The value of x is between 0 & 1 which is the larger? A) x B) x^2 C)
-x D) 1/x Ans : (D)
ORACLE TEST
1.
What are the difference b/w candidate key, primary key and unique
key?
2.
What is difference b/w pre query and post query?
3.
How many number of columns can be created in a single table.
4.
What is meant by ROWID? Why we need it?
5.
What is transaction?
6.
Difference b/w function, procedure?
7.
Which one is the best way to find out the number of rows in a
table, state by following a) count (1) b) count (*), count (rowed)
One table is given and questions based on this table.
1.
Write query to delete a single column in a table.
2.
Write query to add one more column in a existing table.
3.
Write query to delete only 2 duplicate records in a table.But the
table they have given contains 3 duplicate records. How to do it.
4.
Some SELECT statements queries they asked like using group by,
ordered by, where...etc.
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