66 lines
1.8 KiB
Markdown
66 lines
1.8 KiB
Markdown
---
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title: Query Percona
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list_title: Percona
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description: >
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Use [`sql.from()`](/flux/v0/stdlib/sql/from/) with the `mysql` driver to query Percona.
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menu:
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flux_v0:
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name: Percona
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parent: SQL databases
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weight: 101
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related:
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- /flux/v0/stdlib/sql/from/
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list_code_example: |
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```js
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import "sql"
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sql.from(
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driverName: "mysql",
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dataSourceName: "user:password@tcp(localhost:3306)/db",
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query: "SELECT * FROM example_table",
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)
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```
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---
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To query [Percona](https://www.percona.com/) with Flux:
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1. Import the [`sql` package](/flux/v0/stdlib/sql/).
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2. Use [`sql.from()`](/flux/v0/stdlib/sql/from/) and provide the following parameters:
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- **driverName**: mysql
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- **dataSourceName**: _See [data source name](#percona-data-source-name)_
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- **query**: SQL query to execute
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```js
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import "sql"
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sql.from(
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driverName: "mysql",
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dataSourceName: "user:password@tcp(localhost:3306)/db",
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query: "SELECT * FROM example_table",
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)
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```
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---
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## Percona data source name
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The `mysql` driver uses the following data source name (DSN) syntax (also known as a **connection string**):
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```
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username:password@tcp(localhost:3306)/dbname?param=value
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```
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## Percona to Flux data type conversion
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`sql.from()` converts Percona data types to Flux data types.
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| Percona data type | Flux data type |
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| :----------------------------- | :-------------------------------------------- |
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| INT, BIGINT, SMALLINT, TINYINT | [int](/flux/v0/data-types/basic/int/) |
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| FLOAT, DOUBLE | [float](/flux/v0/data-types/basic/float/) |
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| DATETIME | [time](/flux/v0/data-types/basic/time/) |
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| STRING | [string](/flux/v0/data-types/basic/string/) |
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{{% caption %}}
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All other Percona data types are converted to strings.
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{{% /caption %}}
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