python etl

Innocent Iguana answered on October 1, 2024 Popularity 9/10 Helpfulness 1/10

answer python etl

related argocd default password

related install k6

python etl

Comment

import pandas as pd
import psycopg2
from sqlalchemy import create_engine

# The Extract phase: Just load the data using pd.read_csv, pd.read_parquet, pd.read_json etc
# The Transform phase
def transform(sql_query, dbname='hr', user='postgres', password='postgres', port='5432', host='localhost'):
    # Create a connection to the PostgreSQL database using psycopg2
    conn = psycopg2.connect(dbname=dbname, user=user, password=password, host=host, port=port)
    df = pd.read_sql(sql_query, conn) # Execute the query and load the results into a DataFrame
    conn.close() # Close the psycopg2 connection
    return df # Return the DataFrame

# The Load phase
def load(df, table_name, dbname='hr', user='postgres', password='postgres', port='5432', host='localhost'):
    # Create a connection to the PostgreSQL database using SQLAlchemy for to_sql
    engine = create_engine(f'postgresql://{user}:{password}@{host}:{port}/{dbname}')

    # Persist the DataFrame to the SQL table
    df.to_sql(table_name, engine, if_exists='append', index=False) # if_exists='replace' for replacement

    print(f"DataFrame persisted to table '{table_name}' successfully!")

# transform the data from PostgreSQL
query_result = transform('SELECT * FROM jobs')
# Load or Persist the result in the PostgreSQL database
load(query_result, 'final_table')

Popularity 9/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: etl python

Link to this answer
Share Copy Link

Contributed on Oct 02 2024

Innocent Iguana

0 Answers Avg Quality 2/10

Closely Related Answers

argocd default password

Comment

argocd admin initial-password -n argocd

// or

kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d

Popularity 5/10 Helpfulness 1/10 Language whatever

Source: stackoverflow.com

Tags: whatever default

Link to this answer
Share Copy Link

Contributed on Oct 01 2024

Ave Romani

0 Answers Avg Quality 2/10

install k6

Comment

brew install k6

Popularity 4/10 Helpfulness 1/10 Language shell

Source: medium.com

Tags: shell k6

Link to this answer
Share Copy Link

Contributed on Oct 01 2024

Inexpensive Ibis

0 Answers Avg Quality 2/10

python etl

Contents

More Related Answers

python etl

Closely Related Answers

argocd default password

install k6

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.