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Update database.markdown (#3703)

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Minor language edits.
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Ken Davidson 2017-10-21 18:59:44 -04:00 committed by Fabian Affolter
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source/_docs/backend/database.markdown
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@ -10,8 +10,8 @@ footer: true
redirect_from: /details/database/ redirect_from: /details/database/
--- ---
The default database that is used for Home Assistant is [SQLite](https://www.sqlite.org/) and is stored in your [configuration directory](/getting-started/configuration/), eg. `<path to config dir>/.homeassistant/home-assistant_v2.db`. You will need an installation of `sqlite3`, the command-line for SQLite database, or [DB Browser for SQLite](http://sqlitebrowser.org/) which provide an editor for executing SQL commands. The default database that is used for Home Assistant is [SQLite](https://www.sqlite.org/) and is stored in your [configuration directory](/getting-started/configuration/) (e.g., `<path to config dir>/.homeassistant/home-assistant_v2.db`). You will need an installation of `sqlite3`, the command-line for SQLite database, or [DB Browser for SQLite](http://sqlitebrowser.org/), which provides an editor for executing SQL commands.
First load your database with `sqlite3`. First load your database with `sqlite3`:
```bash ```bash
$ sqlite3 home-assistant_v2.db $ sqlite3 home-assistant_v2.db
@ -20,7 +20,7 @@ Enter ".help" for usage hints.
sqlite> sqlite>
``` ```
It helps to set some options to make the output better readable. It helps to set some options to make the output more readable:
```bash ```bash
sqlite> .header on sqlite> .header on
@ -38,7 +38,7 @@ seq name file
### {% linkable_title Schema %} ### {% linkable_title Schema %}
Get all available tables from your current Home Assistant database. Get all available tables from your current Home Assistant database:
```bash ```bash
sqlite> SELECT sql FROM sqlite_master; sqlite> SELECT sql FROM sqlite_master;
@ -81,7 +81,7 @@ CREATE INDEX states__state_changes ON states (last_changed, last_updated, entity
CREATE TABLE sqlite_stat1(tbl,idx,stat) CREATE TABLE sqlite_stat1(tbl,idx,stat)
``` ```
To only show the details about the `states` table as we are using that one in the next examples. To only show the details about the `states` table (since we are using that one in the next examples):
```bash ```bash
sqlite> SELECT sql FROM sqlite_master WHERE type = 'table' AND tbl_name = 'states'; sqlite> SELECT sql FROM sqlite_master WHERE type = 'table' AND tbl_name = 'states';
@ -89,7 +89,7 @@ sqlite> SELECT sql FROM sqlite_master WHERE type = 'table' AND tbl_name = 'state
### {% linkable_title Query %} ### {% linkable_title Query %}
The identification of the available columns in the table is done and we are now able to create a query. Let's list of your Top 10 entities. The identification of the available columns in the table is done and we are now able to create a query. Let's list your Top 10 entities:
```bash ```bash
sqlite> .width 30, 10, sqlite> .width 30, 10,
@ -110,7 +110,7 @@ group.all_switches 8018
### {% linkable_title Delete %} ### {% linkable_title Delete %}
If you don't want to keep certain entities, you can delete them permanently. If you don't want to keep certain entities, you can delete them permanently:
```bash ```bash
sqlite> DELETE FROM states WHERE entity_id="sensor.cpu"; sqlite> DELETE FROM states WHERE entity_id="sensor.cpu";
@ -123,4 +123,3 @@ sqlite> VACUUM;
``` ```
For a more interactive way to work with the database or the create statistics, checkout our [Jupyter notebooks](http://nbviewer.jupyter.org/github/home-assistant/home-assistant-notebooks/tree/master/). For a more interactive way to work with the database or the create statistics, checkout our [Jupyter notebooks](http://nbviewer.jupyter.org/github/home-assistant/home-assistant-notebooks/tree/master/).