> For the complete documentation index, see [llms.txt](https://community-test.logicnets.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://community-test.logicnets.com/release-9/platform-documentation/system-administration/system-settings/system-settings-database-tab.md).

# System Settings Database Tab

## Description

The System Configuration package contains multiple configuration options, which are organized into different tabs that display at the top of the screen. This article contains information about options/configurations located on the Database tab. System Configuration LogicNets supports integration with MS SQL server, Oracle, and MySQL database systems.

## Configuration Settings

From the Database tab you can set a profile that defines the high-level settings to control the interaction between the LogicNets platform and your selected database system. For more detailed information, see [Database Profiles: Oracle, MS SQL, and MySQL](/release-9/platform-documentation/data-and-data-tables/database-profiles-oracle-ms-sql-and-mysql.md).

| Configuration              | Definition                                                                                    | Oracle        | MS SQL        | MySQL         |
| -------------------------- | --------------------------------------------------------------------------------------------- | ------------- | ------------- | ------------- |
| External Databases         | This table is where you enter aliases, database names, and ODBC strings.                      |               |               |               |
| Auto increment             | This tells LogicNets whether or not the database creates an ID for the newly inserted record. | Default: 0    | Default: 1    | Default: 1    |
| Use LN generated sequences | This tells Logicnets whether or not to use its own sequence objects when adding a new record. | Default: 1    | Default: 1    | Default: 1    |
| Max. character size        | This is the maximum size for a character field LogicNets can pass to the database.            | Default: 4000 | Default: 4000 | Default: 4000 |


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