Query SQLite
To query SQLite with Flux:
Import the
sqlpackage.Use
sql.from()and provide the following parameters:- driverName: sqlite3
- dataSourceName: See data source name
- query: SQL query to execute
import "sql"
sql.from(
driverName: "sqlite3",
dataSourceName: "file:/path/to/example.db?cache=shared&mode=ro",
query: "SELECT * FROM example_table",
)
Requires file system access
To query SQLite, Flux must have access to the filesystem. If Flux does not have access to the file system, the query will return an error similar to one of the following:
Error: unable to open database filefailed to read file: filesystem service is uninitializedAn internal error has occurred
If using InfluxDB Cloud or InfluxDB OSS, the Flux process does not have access to the filesystem.
SQLite data source name
The sqlite3 driver uses the following DSN syntax (also known as a connection string):
file:/path/to/example.db?param=value
SQLite to Flux data type conversion
sql.from() converts SQLite data types to Flux data types.
| SQLite data type | Flux data type |
|---|---|
| INT, INTEGER, BIGINT, SMALLINT, TINYINT | int |
| FLOAT, DOUBLE | float |
| DATETIME, TIMESTAMP, DATE | time |
| BOOL | int |
| TEXT | string |
All other SQLite data types are converted to strings.
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Support and feedback
Thank you for being part of our community! We welcome and encourage your feedback and bug reports for Flux and this documentation. To find support, use the following resources:
InfluxDB Cloud customers can contact InfluxData Support.