78 lines
2.2 KiB
Markdown
78 lines
2.2 KiB
Markdown
---
|
|
title: Write to MySQL
|
|
list_title: MySQL
|
|
description: >
|
|
Use [`sql.to()`](/flux/v0.x/stdlib/sql/to/) with the `mysql` driver to write
|
|
data to MySQL.
|
|
menu:
|
|
flux_0_x:
|
|
name: MySQL
|
|
parent: write-to-sql
|
|
identifier: write-mysql
|
|
weight: 101
|
|
related:
|
|
- /flux/v0.x/stdlib/sql/to/
|
|
list_code_example: |
|
|
```js
|
|
import "sql"
|
|
|
|
data
|
|
|> sql.to(
|
|
driverName: "mysql",
|
|
dataSourceName: "user:password@tcp(localhost:3306)/db",
|
|
table: "example_table",
|
|
)
|
|
```
|
|
---
|
|
|
|
To write data to [MySQL](https://www.mysql.com/) with Flux:
|
|
|
|
1. Import the [`sql` package](/flux/v0.x/stdlib/sql/).
|
|
2. Pipe-forward data into [`sql.to()`](/flux/v0.x/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.x/data-types/basic/float/) | FLOAT |
|
|
| [int](/flux/v0.x/data-types/basic/int/) | BIGINT |
|
|
| [uint](/flux/v0.x/data-types/basic/uint/) | BIGINT |
|
|
| [string](/flux/v0.x/data-types/basic/string/) | TEXT(16383) |
|
|
| [bool](/flux/v0.x/data-types/basic/bool/) | BOOL (TINYINT) |
|
|
| [time](/flux/v0.x/data-types/basic/time/) | DATETIME |
|
|
|
|
{{% note %}}
|
|
#### 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`.
|
|
{{% /note %}}
|