Installation and Use of InfluxDB

InfluxDB is an open-source temporal database designed specifically for processing high-speed, multi-dimensional data. It is widely used in fields such as monitoring, the Internet of Things, and real-time analysis. The process of installing InfluxDB is as follows: Step 1: Download InfluxDB Firstly, you need to access the official website of InfluxDB（ https://www.influxdata.com/ ）Then download the binary files of InfluxDB according to the corresponding operating system. InfluxDB provides versions for Linux, Windows, and macOS. Step 2: Install InfluxDB Unzip the downloaded compressed package and copy the binary files to the executable path of the system. For Linux systems, executable files can be copied to the/usr/local/bin directory. Step 3: Start InfluxDB Open a command line terminal and enter the command 'influxd' to start the InfluxDB service. By default, InfluxDB will listen on port 8086. Step 4: Connect to InfluxDB You can use the Linux command to connect to a running InfluxDB instance. Enter Linux in the command line terminal to connect to InfluxDB. Realize the creation of databases and the addition, deletion, and modification of data: 1. Create a database: After connecting to InfluxDB, you can create a new database using the following command: CREATE DATABASE <database_name> 2. Insert data: You can insert data into the specified database and table using the following command: INSERT <measurement>,tag_key=tag_value field_key=field_value timestamp Where measurement is the table name and tag_ Key and Tag_ Value is the key and value of the label, field_ Key and field_ Value is the key and value of the field, and timestamp is the timestamp of the data. 3. Query data: You can query data using the following command: SELECT <field_key> FROM <measurement> Among them, field_ Key is the field to be queried, and measurement is the table name to be queried. 4. Delete data: You can delete data by using the following command: DELETE FROM <measurement> WHERE <condition> Among them, measurement is the table name of the data to be deleted, and condition is a condition used to specify the data to be deleted. The above is the installation process of InfluxDB and the operations of adding, deleting, modifying, and querying databases and data.