Multiple update conditions in single query

	Assume we have a table called Suppliers(Supp_Id varchar2(10), Supp_Name varchar2(50)) having the following data.
	

	Prob: I want to modify "TCS" with "Tata Consultancy Services" and "Wipro" with "Wipro Technologies" in a single query.

	Sol: UPDATE Suppliers SET Supp_Name=
                                       CASE
                                               WHEN supp_name='TCS' then 'TataConsultancyServices' 
                                               WHEN supp_name='Wipro' then 'Wipro Technologies'
                                       END
                                       WHERE supp_name IN('TCS','Wipro');


	Note:IN clause is optional to escape the query from being updated all the records.