cassandra mongodb comparison

team develops familiar technologies, such as a team that has been using MC for a limited selection of MC rather than Redis.In the middle of a serious situation, the development team has been using MOGODB to continue to select Mogodb in a scenario suitable for KV nosq.A book recommended to you: Memcache and Redis are key-value storage systems, whereas Redis may be more adaptable than memcache, storing more value types, and Redis supports master-slave synchronization. And MONGO is a document-base

Label:MongoDB Insert method, Update method, save method Simple Contrast 1.update methodThis method is used to update the data, the data in the document is updated, the change is updated, unchanged.2.insert methodThis method is used to insert data into the document, that is, to add new data to the document.3.save methodThe same method is used to insert data into the document, and the function is similar to the Insert method. Unlike the Insert method,The Save method is to traverse the document, in

Tags: io os java ar sp CTI Code on C Read the premise: the background of the code is this ID other posts: IP library Query The format is as follows: Begin End Provinces 18533376,18534399, Inner Mongolia Autonomous Region, Holonbuyr Simple code: publicstaticiplocationgetlocation ( Longiplong) {iplocationiplocation=newiplocation ();// Gets the handle to the table dbcollectioncollection=null;// encapsulates the query condition basicdbobjectbasicdbobject= null;try{collection=db.getcollection (con