SQL
📄️ Data Types
CnosDB SQL is implemented using Apache Arrow DataFusion, DataFusion uses Arrow types to execute queries, and the data types stored in CnosDB are mapped to SQL data types when queried.
📄️ Reference
The usage of identifiers, literals, and arithmetic operators in CnosDB, as well as some commonly used operators in SQL.Also introduces the precedence of operators and some other related content.
📄️ DDL
Used to define the structure and organization of the database.
📄️ DML
Is used to manipulate data stored in a database.
📄️ DQL
Used to retrieve data from the database.
📄️ DCL
Is used to control the access rights of database users.
🗃️ Function
10 items
📄️ System Views
CnosDB provides system views to view cluster status and cluster schema information.