# SAP HANA

Lumi currently supports S4 SAP HANA and the following document covers the usage of the database within the application.

## Supported Methods

Means for Lumi to connect to the client to implement the services required:

* [ ] **Direct** 

  *The default / typical connection option. Interfaces directly with the target system over the Internet with no mediation. Suitable for most cloud-hosted scenarios or public-facing resources. See* [*Network Configuration*](https://docs.lumi-ai.com/using-lumi/network-configuration) *for more details.*
* [x] **Gateway**\
  \&#xNAN;*An alternative connection method leveraging a Lumi AI Data Gateway. This uses Lumi AI's purpose-built connection agent to mediate communications. Ideal for restricting access to systems within a protected network. For more information, see* [*Data Gateway*](https://docs.lumi-ai.com/product-features/data-gateway)*.* 

{% hint style="info" %}
Gateway is not supported with SAP Hana
{% endhint %}

## Supported Limits

The following are limitations that can be set to fine tune the agents' actions: 

* [ ] **Cost Limit**\
  \&#xNAN;*Before running a query, if the system supports it, the system-specific compute cost (or surrogate) estimate will be processed and compared to an organization-level/admin-set cost limit for systems of this type (if configured/set). If exceeded, the query will not run (and either the workflow will attempt an optimization or the user will be notified).*
* [ ] **Duration Limit**\
  \&#xNAN;*An alternative to cost, queries will be stopped the system supports a duration/timeout limit and one is set/configured at the organization level (across systems).*

## Available Parameters

These properties are the essential source system connection properties that all queries are directed towards.

*\* Required parameters*

<details>

<summary>Host*</summary>

Domain or IP of the database to allow a connection to Lumi AI.

:thumbsup: **Valid Examples**

* Domain name: *docs.lumi-ai.com*
* IPv4: *55.88.92.101*

:thumbsdown: **Invalid Examples**

* IPv4 with alphanumeric characters: *123.abc.def.456*
* Incomplete domain name resolutions: *lumi-ai.com*

</details>

<details>

<summary>Port*</summary>

Access port to allow for connections to the database.

:thumbsup: **Valid Examples**

* Default HANA SQL Port: *30015*
* SQL Interface Over HTTPS: *30013*
* XS Engine HTTP Port: *8000*
* XS Engine HTTPS Port: *44300*

:thumbsdown: **Invalid Examples**

* Known Port Numbers (0-1023): *80*

</details>

<details>

<summary>Username*</summary>

Username of the generated database user which will be used for interactions and transactions.

:thumbsup: **Valid Examples**

* Uses alphanumeric characters : *lumi1*
* Utilizing underscore (\_) in place of spaces: *user\_number*

:thumbsdown: **Invalid Examples**

* Starting with a number: *1lumi*
* Utilizing spaces: *user name*
* Using invalid characters unquoted: *user#1*

</details>

<details>

<summary>Password*</summary>

Password of the generated database user which will be used for interactions and transactions.

</details>

<details>

<summary>Database*</summary>

Literal database name that will be used for transactions within the agents.

**Special Considerations**

* If case sensitivity is required, utilize double quotes for database name; ex. "New\_database"

:thumbsup: **Valid Examples**

* Uses alphanumeric characters: *lumi1*
* Utilizing underscore (\_) in place of spaces: *new\_database*

:thumbsdown: **Invalid Examples**

* Starting with a number: *1lumi*
* Utilizing spaces: *user name*
* Using reserved words unquoted: *select*
* Has invalid special character unquoted: *lumi#2*

</details>

## System Permissions & Configuration

Provided user must have the following:

* [x] If applicable CREATE a user
* [x] Grant the user SELECT privileges on the schema and tables:
  * [x] `GRANT SELECT ON SCHEMA my_schema TO service_user;`\
    `GRANT SELECT ON TABLE my_schema.my_table TO service_user;`

For configurations:

* [x] Ensure the server is allowing connections from the Lumi gateway or server via the firewall

## Special Notes

* Special characters and case sensitivity can be utilized in database names and usernames via encasing the name in double quotes (" "), but is not recommended

## Common Issues

* Ensure the firewall settings allow for a connection to the database
* Ensure the username, password, and database values are explicitly provided&#x20;


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.lumi-ai.com/product-features/source-system-integrations/sap-hana.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.