> For the complete documentation index, see [llms.txt](https://muradkarakas.gitbook.io/sodium_documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://muradkarakas.gitbook.io/sodium_documentation/language-reference/connection/connection-types/database-connections.md).

# Database Connections

## Description

* Applications need physical database connection(s) in order to execute SQL commands.
* New connections can be obtained by calling any one of the following functions : [create\_oracle\_connection](/sodium_documentation/language-reference/built-in-functions/sodium-built-in-functions/database-related-functions/create_oracle_connection.md) or [create\_postgresql\_connection](/sodium_documentation/language-reference/built-in-functions/sodium-built-in-functions/database-related-functions/create_postgresql_connection.md) function.
* Applications can have more than one database connection at the same time.
* All connections must have a unique name called as "connection name".
* If "connection name" is not provided by developer in source code, "default" is used as a default "connection name". As an example this happens when A data block does not specify its connection name in [Form File](/sodium_documentation/language-reference/program-structure/form-file.md) ([connection-name property](/sodium_documentation/language-reference/tags/data-block.md#data-block-name-property)).

## See also

### ["connection\_not\_found" trigger](/sodium_documentation/language-reference/built-in-triggers/connection_not_found-trigger.md)

### [get\_database\_name](/sodium_documentation/language-reference/built-in-functions/sodium-built-in-functions/database-related-functions/get_database_name.md)

### [get\_database\_type](/sodium_documentation/language-reference/built-in-functions/sodium-built-in-functions/database-related-functions/get_database_type.md)

### [Active Database Connection](/sodium_documentation/language-reference/connection/active-database-connection.md)