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https://github.com/dewscan001/python-mysql2postgresql
Python Package transfer data from MySQL to PostgreSQL
https://github.com/dewscan001/python-mysql2postgresql
mysql mysql2postgresql postgresql python
Last synced: 12 days ago
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Python Package transfer data from MySQL to PostgreSQL
- Host: GitHub
- URL: https://github.com/dewscan001/python-mysql2postgresql
- Owner: dewscan001
- Created: 2021-01-13T15:55:18.000Z (almost 4 years ago)
- Default Branch: master
- Last Pushed: 2024-07-13T00:34:43.000Z (4 months ago)
- Last Synced: 2024-08-01T15:10:39.974Z (3 months ago)
- Topics: mysql, mysql2postgresql, postgresql, python
- Language: Python
- Homepage:
- Size: 20.5 KB
- Stars: 5
- Watchers: 1
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# python-mysql2postgresql
## Installation - pure Python
```
pip install python-mysql2postgresql
```
## Usage via Python file
```
from mysql2postgresql import mysql2postgresql
a = mysql2postgresql()
# connect MySQL server
a.connect_mysql(
host='localhost',
port='3306',
user='root',
passwd='',
db='database_name'
)
# connect PostgreSQL server
a.connect_postgresql(
host='localhost',
port=5432,
user='postgres',
password='postgres',
database='database_name'
)
# shortlist of tables to copy data from -> default all tables in a database
a.tables = ['table1', 'table2', ...]
# shortlist of tables to exclude -> default empty
a.without = ['table3', 'table4', ...]
# manual limit to query data -> default 10000
# not limit -> a.limit = 0
a.limit = 10000
# run the program
a.run()
```
## Usage via command line
You can copy example above or create a demo.py file from example using:
```
python -m mysql2postgresql export_example
```
You can convert all tables in a MySQL database to PostgreSQL using a command:
```
python -m mysql2postgresql convert\
--mysql_host=localhost\
--mysql_port=3306\
--mysql_user=root\
--mysql_password=\
--mysql_database=db_name\
--postgresql_host=localhost\
--postgresql_port=5432\
--postgresql_user=postgres\
--postgresql_password=postgres\
--postgresql_database=database_name
```
Configuration from standard environment variables is supported reading
$MYSQL_HOST, $MYSQL_USER, $MYSQL_PWD, $PGHOST, $PGUSER, $PGPASSWORD.
With above present you only need to add name of the database to convert.
```
export CONVERT_DATABASE=mydatabase
python -m mysql2postgresql convert
```
You can **copy data only (without a schema)** if you already have corresponding Postgres db schema from migrations etc.
Turning off schema creation also turns off dropping postgres tables before they get recreated.
```
export CONVERT_SCHEMA=0
```