What is the use of the Empire CMS subtable?

Empire cms sub-table is used to store some extended data associated with the main table. It can extend the fields and functions of the main table and provide richer data storage and management methods. Common uses and methods are: 1 , Store additional field information; 2. Expand the main table function; 3. Store many-to-many relationships; 4. Pluggable expansion

This tutorial operating system : Windows 10 system, Imperial CMS version 7.5, Dell G3 computer.

In Imperial CMS, secondary tables are used to store some extended data associated with the main table to meet more complex needs. The secondary table can expand the fields and functions of the main table and provide richer data storage and management methods. The following are some common uses and usage of secondary tables:

1. Storing additional field information: Secondary tables can be used to store additional fields related to the main table that may not be Suitable for placing directly in the main table. By creating secondary tables, you can separate these additional fields and provide a more flexible data storage solution.

2. Expand the functions of the main table: The secondary table can extend the functions of the main table, such as adding new status flags, counters, permission control, etc. By defining a secondary table associated with the main table, you can add more business logic and control options to the main table.

3. Storing many-to-many relationships: If there is a many-to-many relationship between the main table and other tables, the secondary table can be used as an intermediate table to establish an association between the two tables. Through the secondary table, you can store the relationships between related records to facilitate query and management.

4. Pluggable expansion: The secondary table can implement pluggable expansion functions. By creating a secondary table, you can add new modules or plug-ins to the Empire CMS and associate them with the main table to achieve customized function expansion.

Using a secondary table usually requires the following steps:

1. In the Imperial CMS background management interface, find the options related to the secondary table. The exact location may vary depending on the Empire CMS version.

2. Create a new secondary table and define the relationship and corresponding fields with the main table.

3. According to business needs, add or edit the data to be stored in the secondary table.

4. In the program code, query and operate the data of the secondary table as needed. The data of the secondary table is usually related through the relevant fields or IDs of the main table.

Please note that the use of secondary tables requires proper planning and design during the development stage to ensure the association between the secondary table and the main table, data consistency and performance, etc. optimization. If you have specific needs for the use of secondary tables, it is recommended to refer to the official documentation of Imperial CMS or seek support and guidance from the Imperial CMS community to obtain accurate and reliable information.

The above is the detailed content of What is the use of the Empire CMS subtable?. For more information, please follow other related articles on the PHP Chinese website!