Basic Features

This chapter mainly introduces the data model of TDengine as well as its write and query functions.

📄️ Data Model

To clearly explain the concepts of time-series data and facilitate the writing of example programs, the TDengine documentation uses smart meters as an example. These example smart meters can collect three metrics location and group ID. The data collected by these smart meters is shown in the table below.

📄️ Data Ingestion

This chapter uses the data model of smart meters as an example to introduce how to write, update, and delete time-series data in TDengine using SQL.

📄️ Data Querying

Compared to many other time-series and real-time databases, a unique advantage of TDengine since its first release is its support for standard SQL queries. This feature significantly reduces the learning curve for users. This chapter will use the data model of smart meters as an example to demonstrate how to use SQL queries in TDengine to handle time-series data. For further details and features of SQL syntax, it is recommended to refer to the official TDengine documentation. By studying this chapter, you will be able to master TDengine's SQL querying techniques and efficiently operate and analyze time-series data.