---
title: "trino-sql"
type: docs
weight: 1
description: >
  A "trino-sql" tool executes a pre-defined SQL statement against a Trino
  database.
aliases:
- /resources/tools/trino-sql
---

## About

A `trino-sql` tool executes a pre-defined SQL statement against a Trino
database. It's compatible with any of the following sources:

- [trino](../../sources/trino.md)

The specified SQL statement is executed as a [prepared statement][trino-prepare],
and specified parameters will be inserted according to their position: e.g. `$1`
will be the first parameter specified, `$2` will be the second parameter, and so
on. If template parameters are included, they will be resolved before execution
of the prepared statement.

[trino-prepare]: https://trino.io/docs/current/sql/prepare.html

## Example

> **Note:** This tool uses parameterized queries to prevent SQL injections.
> Query parameters can be used as substitutes for arbitrary expressions.
> Parameters cannot be used as substitutes for identifiers, column names, table
> names, or other parts of the query.

```yaml
tools:
 search_orders_by_region:
    kind: trino-sql
    source: my-trino-instance
    statement: |
      SELECT * FROM hive.sales.orders
      WHERE region = $1
      AND order_date >= DATE($2)
      LIMIT 10
    description: |
      Use this tool to get information for orders in a specific region.
      Takes a region code and date and returns info on the orders.
      Do NOT use this tool with an order id. Do NOT guess a region code or date.
      A region code is a code for a geographic region consisting of two-character
      region designator and followed by optional subregion.
      For example, if given US-WEST, the region is "US-WEST".
      Another example for this is EU-CENTRAL, the region is "EU-CENTRAL".
      If the tool returns more than one option choose the date closest to today.
      Example:
      {{
          "region": "US-WEST",
          "order_date": "2024-01-01",
      }}
      Example:
      {{
          "region": "EU-CENTRAL",
          "order_date": "2024-01-15",
      }}
    parameters:
      - name: region
        type: string
        description: Region unique identifier
      - name: order_date
        type: string
        description: Order date in YYYY-MM-DD format
```

### Example with Template Parameters

> **Note:** This tool allows direct modifications to the SQL statement,
> including identifiers, column names, and table names. **This makes it more
> vulnerable to SQL injections**. Using basic parameters only (see above) is
> recommended for performance and safety reasons. For more details, please check
> [templateParameters](..#template-parameters).

```yaml
tools:
 list_table:
    kind: trino-sql
    source: my-trino-instance
    statement: |
      SELECT * FROM {{.tableName}}
    description: |
      Use this tool to list all information from a specific table.
      Example:
      {{
          "tableName": "hive.sales.orders",
      }}
    templateParameters:
      - name: tableName
        type: string
        description: Table to select from
```

## Reference

| **field**           |                  **type**                                 | **required** | **description**                                                                                                                            |
|---------------------|:---------------------------------------------------------:|:------------:|--------------------------------------------------------------------------------------------------------------------------------------------|
| kind                |                   string                                  |     true     | Must be "trino-sql".                                                                                                                       |
| source              |                   string                                  |     true     | Name of the source the SQL should execute on.                                                                                              |
| description         |                   string                                  |     true     | Description of the tool that is passed to the LLM.                                                                                         |
| statement           |                   string                                  |     true     | SQL statement to execute on.                                                                                                               |
| parameters          | [parameters](../#specifying-parameters)                |    false     | List of [parameters](../#specifying-parameters) that will be inserted into the SQL statement.                                           |
| templateParameters  |  [templateParameters](..#template-parameters)         |    false     | List of [templateParameters](..#template-parameters) that will be inserted into the SQL statement before executing prepared statement. |
