Survey paper on query optimization techniques in the cloud

Client's interests and their intrigues are distinctive. Gathering substantial measure of information to the client is exceptionally troublesome. At some point data is exceptionally delicate; taking care of the data is extremely troublesome assignment. It is permitted just to remunerate clients. Client send their present area of focuses, they need to think about closest POI’s in NN however information Owner does not have that much stockpiling limit so cloud administration is being utilized. Cloud gives power full stockpiling requiring little to no effort however Cloud is not fully trusted. So NN inquiries are being utilized as a part of an untrusted outsourced environment, while at an identical time defensive the POI and questioning the client's area positions. The procedural in view of changeable request safeguarding encoding (mOPE). It is a protected request safeguarding encryption.