stable/docs/sql_cheatsheet.md

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# SQL Helper
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This page contains some help if you want to edit your sqlite db.
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## Install sqlite3
Sqlite3 is a terminal based sqlite application.
Feel free to use a visual Database editor like SqliteBrowser if you feel more comfortable with that.
### Ubuntu/Debian installation
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```bash
sudo apt-get install sqlite3
```
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### Using sqlite3 via docker-compose
The freqtrade docker image does contain sqlite3, so you can edit the database without having to install anything on the host system.
``` bash
docker-compose exec freqtrade /bin/bash
sqlite3 <database-file>.sqlite
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```
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## Open the DB
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```bash
sqlite3
.open <filepath>
```
## Table structure
### List tables
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```bash
.tables
```
### Display table structure
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```bash
.schema <table_name>
```
## Get all trades in the table
```sql
SELECT * FROM trades;
```
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## Fix trade still open after a manual exit on the exchange
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!!! Warning
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Manually selling a pair on the exchange will not be detected by the bot and it will try to sell anyway. Whenever possible, /forceexit <tradeid> should be used to accomplish the same thing.
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It is strongly advised to backup your database file before making any manual changes.
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!!! Note
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This should not be necessary after /forceexit, as force_exit orders are closed automatically by the bot on the next iteration.
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```sql
UPDATE trades
SET is_open=0,
close_date=<close_date>,
close_rate=<close_rate>,
close_profit = close_rate / open_rate - 1,
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close_profit_abs = (amount * <close_rate> * (1 - fee_close) - (amount * (open_rate * (1 - fee_open)))),
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exit_reason=<exit_reason>
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WHERE id=<trade_ID_to_update>;
```
### Example
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```sql
UPDATE trades
SET is_open=0,
close_date='2020-06-20 03:08:45.103418',
close_rate=0.19638016,
close_profit=0.0496,
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close_profit_abs = (amount * 0.19638016 * (1 - fee_close) - (amount * (open_rate * (1 - fee_open)))),
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exit_reason='force_exit'
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WHERE id=31;
```
## Remove trade from the database
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!!! Tip "Use RPC Methods to delete trades"
Consider using `/delete <tradeid>` via telegram or rest API. That's the recommended way to deleting trades.
If you'd still like to remove a trade from the database directly, you can use the below query.
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!!! Danger
Some systems (Ubuntu) disable foreign keys in their sqlite3 packaging. When using sqlite - please ensure that foreign keys are on by running `PRAGMA foreign_keys = ON` before the above query.
```sql
DELETE FROM trades WHERE id = <tradeid>;
DELETE FROM trades WHERE id = 31;
```
!!! Warning
This will remove this trade from the database. Please make sure you got the correct id and **NEVER** run this query without the `where` clause.
## Use a different database system
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Freqtrade is using SQLAlchemy, which supports multiple different database systems. As such, a multitude of database systems should be supported.
Freqtrade does not depend or install any additional database driver. Please refer to the [SQLAlchemy docs](https://docs.sqlalchemy.org/en/14/core/engines.html#database-urls) on installation instructions for the respective database systems.
The following systems have been tested and are known to work with freqtrade:
* sqlite (default)
* PostgreSQL)
* MariaDB
!!! Warning
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By using one of the below database systems, you acknowledge that you know how to manage such a system. The freqtrade team will not provide any support with setup or maintenance (or backups) of the below database systems.
### PostgreSQL
Installation:
`pip install psycopg2-binary`
Usage:
`... --db-url postgresql+psycopg2://<username>:<password>@localhost:5432/<database>`
Freqtrade will automatically create the tables necessary upon startup.
If you're running different instances of Freqtrade, you must either setup one database per Instance or use different users / schemas for your connections.
### MariaDB / MySQL
Freqtrade supports MariaDB by using SQLAlchemy, which supports multiple different database systems.
Installation:
`pip install pymysql`
Usage:
`... --db-url mysql+pymysql://<username>:<password>@localhost:3306/<database>`