What does the data manipulation function of sql mainly include?

SQL's data manipulation functions mainly include data insertion, deletion, modification and query. SQL data manipulation functions mainly include data insertion, deletion and modification of basic tables and views, especially strong data query functions; while data control functions mainly control user access rights to ensure system security.

The operating environment of this tutorial: Windows 7 system, mysql version 5.8, Dell G3 computer.

SQL's data manipulation functions mainly include data insertion, deletion, modification and query.

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Structured Query Language (Structured Query Language), referred to as SQL, is a special-purpose programming language. It is a database query and programming language used to access data and query, update and manage relational database systems.

SQL can be functionally divided into three parts: data definition, data manipulation and data control.

1. SQL data definition function: Able to define the three-level schema structure of the database, namely external schema, global schema and internal schema structure. In SQL, the external schema is also called View, and the global schema is referred to as Schema. The internal schema is automatically implemented by the system based on the database schema, and generally does not require user intervention.

2. SQL data manipulation functions: including data insertion, deletion and modification of basic tables and views, especially strong data query functions.

3. SQL data control function: mainly controls user access rights to ensure system security.

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