---
title: Write to MySQL
description: Use sql.to() with the mysql driver to write data to MySQL.
url: https://docs.influxdata.com/flux/v0/write-data/sql/mysql/
estimated_tokens: 479
product: Flux
version: v0
publisher: InfluxData
canonical: https://docs.influxdata.com/flux/v0/write-data/sql/mysql/
date: '2023-09-12T23:33:31-06:00'
lastmod: '2023-09-12T23:33:31-06:00'
---

To write data to [MySQL](https://www.mysql.com/) with Flux:

1. Import the [`sql` package](/flux/v0/stdlib/sql/).

2. Pipe-forward data into [`sql.to()`](/flux/v0/stdlib/sql/to/) and provide
   the following parameters:

   * **driverName**: mysql
   * **dataSourceName**: *See [data source name](#mysql-data-source-name)*
   * **table**: Table to write to
   * **batchSize**: Number of parameters or columns that can be queued within
     each call to `Exec` (default is `10000`)

```js
import "sql"

data
    |> sql.to(
        driverName: "mysql",
        dataSourceName: "user:password@tcp(localhost:3306)/db",
        table: "example_table",
    )
```

## MySQL data source name

The `mysql` driver uses the following data source name (DSN) syntax (also known as a **connection string**):

```
username:password@tcp(localhost:3306)/dbname?param=value
```

## Flux to MySQL data type conversion

`sql.to()` converts Flux data types to MySQL data types.

|              Flux data type               |MySQL data type|
|-------------------------------------------|---------------|
| [float](/flux/v0/data-types/basic/float/) |     FLOAT     |
|   [int](/flux/v0/data-types/basic/int/)   |    BIGINT     |
|  [uint](/flux/v0/data-types/basic/uint/)  |    BIGINT     |
|[string](/flux/v0/data-types/basic/string/)|  TEXT(16383)  |
|  [bool](/flux/v0/data-types/basic/bool/)  |BOOL (TINYINT) |
|  [time](/flux/v0/data-types/basic/time/)  |   DATETIME    |

#### MySQL BOOL types

`BOOL` is a synonym supplied by MySQL for convenience.
MySQL stores `BOOL` values as `TINYINT` types so looking at the schema shows the
column type as `TINYINT`.

#### Related

* [sql.to() function](/flux/v0/stdlib/sql/to/)
| Flux data type | MySQL data type |
| --- | --- |
| Flux data type | MySQL data type |
| float | FLOAT |
| int | BIGINT |
| uint | BIGINT |
| string | TEXT(16383) |
| bool | BOOL (TINYINT) |
| time | DATETIME |