what are different types of deletes?
does Oracle has only one table space?
Where do we use decode and case statements?
What is blob datatype?
what is query and types of query
Compare and contrast between sql and sql server and explain its various functions?
what is the use of rank function?
What is oracle rownum?
Table E: Name dept month sal 1 A JAN 800 2 B APR 1000 3 A JAN 300 4 A JAN 600 5 C JUN 400 1) SELECT HIGHEST SAL PAID DEPT IN JAN MONTH? 2) WRITE QUERY GET MAX SAL DEPT NO?
types of indexes and the rationale behind choosing a particular index for a situation.
How to define an anonymous procedure without variables?
How to check your oracle database 10g xe installation?
If a table column has is UNIQUE and has NOT NULL, is it equivalent to a PRIMARY KEY column?