MySQL

Add credentials

1. Create a new pipeline or open an existing pipeline.
2. Expand the left side of your screen to view the file browser.
3. Scroll down and click on a file named io_config.yaml.
4. Enter the following keys and values under the key named default (you can have multiple profiles, add it under whichever is relevant to you)

version: 0.1.1
default:
  MYSQL_DATABASE: ...
  MYSQL_HOST: ...
  MYSQL_PASSWORD: ...
  MYSQL_PORT: 3306
  MYSQL_USER: root

---

Using SQL block

1. Create a new pipeline or open an existing pipeline.
2. Add a data loader, transformer, or data exporter block.
3. Select SQL.
4. Under the Data provider/Connection dropdown, select Mysql.
5. Under the Profile dropdown, select default (or the profile you added credentials underneath).
6. Enter the optional table name of the table to write to.
7. Under the Write policy dropdown, select Replace or Append (please see SQL blocks guide for more information on write policies).
8. Enter in this test query: SELECT 1.
9. Run the block.

---

Using Python block

import mysql.connector

conn = mysql.connector.connect(
    host='...',
    password='...',
    port=3306,
    user='root',
    database='...',
)

sql = """
SELECT
  id
  , email
FROM auth_user
"""


cursor = conn.cursor()
cursor.execute(sql)

rows = cursor.fetchall()

import pandas as pd

df = pd.DataFrame(rows, columns=['id', 'email'])
df.to_csv('default_repo/users.csv', index=False)