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Adds note about unit and device class for database size sensor (#33642)

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dougiteixeira 2024-07-08 16:58:49 -03:00 committed by GitHub
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source/_integrations/sql.markdown
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@ -248,6 +248,12 @@ SELECT pg_database_size('dsmrreader')/1024/1024 as db_size;
Use `db_size` as column for value.
Replace `dsmrreader` with the correct name of your database.
{% tip %}
The unit of measurement returned by the above query is `MiB`, please configure this correctly.
Set the device class to `Data size` so you can use UI unit conversion.
{% endtip %}
#### MariaDB/MySQL
Change `table_schema="homeassistant"` to the name that you use as the database name, to ensure that your sensor will work properly.
@ -257,6 +263,12 @@ SELECT table_schema "database", Round(Sum(data_length + index_length) / POWER(10
```
Use `value` as column for value.
{% tip %}
The unit of measurement returned by the above query is `MiB`, please configure this correctly.
Set the device class to `Data size` so you can use UI unit conversion.
{% endtip %}
#### SQLite
If you are using the `recorder` integration then you don't need to specify the location of the database. For all other cases, add `sqlite:////path/to/database.db` as Database URL.
@ -266,6 +278,12 @@ SELECT ROUND(page_count * page_size / 1024 / 1024, 1) as size FROM pragma_page_c
```
Use `size` as column for value.
{% tip %}
The unit of measurement returned by the above query is `MiB`, please configure this correctly.
Set the device class to `Data size` so you can use UI unit conversion.
{% endtip %}
#### MS SQL
Use the same Database URL as for the `recorder` integration. Change `DB_NAME` to the name that you use as the database name, to ensure that your sensor will work properly. Be sure `username` has enough rights to access the sys tables.
@ -282,3 +300,9 @@ Connecting with MSSQL requires "pyodbc" to be installed on your system, which ca
SELECT TOP 1 SUM(m.size) * 8 / 1024 as size FROM sys.master_files m INNER JOIN sys.databases d ON d.database_id=m.database_id WHERE d.name='DB_NAME';
```
Use `size` as column for value.
{% tip %}
The unit of measurement returned by the above query is `MiB`, please configure this correctly.
Set the device class to `Data size` so you can use UI unit conversion.
{% endtip %}