Study of Query Optimization in Cloud

Cloud computing in very simple terms, is basically where a company uses someone else’s computing services (usually over the internet) instead of having to run that software on their own computers. Today, cloud computing plays an important role in service-oriented technologies. The main purpose of cloud computing is, it allows consumers and businesses to use applications without installation and access their personal files at any computer with internet access and it allow users to easily and efficiently calculate and save resources. The recent approach is to process data expression and search. To improve cloud performance, it is necessary to optimize the processing time. Our research provides a comprehensive overview of the different models and methods used to optimize queries to reduce execution time and improve resource utilization. We conducted various query optimization research activities for the classic SQL and Map Reduce platforms.