mongodb triggers

Install and configure MongoDB in Ubuntu 16.04 LTS MongoDB is a high-performance NoSQL database. Compared with relational databases, it also provides high performance and high flexibility. Here we will explain how to install and configure the MongoDB

MongoDB is a high-performance NoSQL database that offers both high performance and flexibility over relational databases, here's how to install and configure the MongoDB database on Ubuntu 16.04 lts.Add a software source[email protected] ~/ $ sudo

Hubbledotnet starting from 1.2.3 version in the official code to support and MongoDB docking, MongoDB is a 10gen company developed No-sql database, its read and write performance than traditional relational database is much faster, and can be very

MongoDB is a popular document database, which has features such as easy to use, easy to expand, rich in function and excellent in performance. The MongoDB itself has a highly available and partitioned solution, which is the replica set (Replica set)

First, the introduction of replicationThe so-called replication is the process of synchronizing data between multiple hosts.1. Data redundancy and availabilityReplication technology provides data redundancy and availability, using multiple copies of

Use mongodb as the JobStore in Quartz. Net to implement the underlying persistence mechanism. mongodbquartz.net We all know that the underlying layer of Quartz uses RAMJobStore by default. All jobs, triggers, and Calendar are stored using data

Introduction to ShardsSharding is a method of using multiple machines to store data, and MongoDB uses shards to support huge amounts of data storage and manipulation of data.Purpose of ShardingHigh data volume and throughput of the database

As the volume of MONGODB data increases, it is possible to limit the storage capacity of a single node, and application a large number of accesses can also cause a single node to fail, so a clustered environment needs to be built and the entire

MongoDB is a product between relational databases and non-relational databases. It has the most abundant functions and features like relational databases. The supported data structure is very loose and is similar to the json bjson format. Therefore,

MongoDB Database Connection1. First we need to install MongoDB in the package, using the command: NPM install MongoDB; After installing the package, we need to refer to the package as follows:var mongo = require (' MongoDB ');In node. js, when you