Skip to main content

Connect Jupyter Notebook Pandas to Postgres



First install Python library Psycopg2 to connect to PostgreSQL:

!pip install psycopg2

Now import the necessary libraries:

import pandas as pd
import psycopg2 as pg
import pandas.io.sql as psql

Connect to the DB Server:

conn = pg.connect("postgres://username:password@server:port/dbname")

Execute a Query:
df = pd.read_sql('select* from table_name', conn)
df.head()
Labels:

Comments

Post a Comment

Popular posts from this blog

Top Google Adsense Alternatives

Google Adsense is a web tool that allows publishers in the Google Network of content sites to automatically serve text, image, video, and rich media adverts that are targeted to site content and audience. These adverts are administered, sorted, and maintained by Google, and they can generate revenue on either a per-click or per-impression basis.  Google servers advertisers using google adwords platform, while adsense is the publishers platform. Google Adsense is the top Ad Publishers platform over the web ranking number one in web advertising industry. Adsense offers contextual advertisements that covers web sites, blogs, games, videos, mobile browsing etc. What made Google Adsense no. 1 is the reliability, stability, variety of services and large number of publishers including google it self. Also google has a fair platform that detects invalid clicks so google successfully protects its advertisers and also offers its best publishers top CPC. Two reasons are behind people think
12 comments
Read more

Error: Write to Disk Access Denied - Troubleshooting - BitTorrent

I have downloaded Bit Torrent software and when trying to download I got an error after few seconds saying: Error: Write to Disk Access Denied Solving this problem is so simple: Shut down BitTorrent program. Go to Start and in the small search box on top of windows start button start typing Bittorrent and the program will show, right click with the mouse on the icon and Run as Administrator. All ur problems are sorted out now and you can enjoy downloading... Good Luck.
12 comments
Read more

How to Build RSS 2.0 Feed in Coldfusion 8

In this tutorial I will show some tips on how to create an RSS Feed in coldfusion by querying a Database. This example will demonstrate how to create an RSS Feed for the quote of the day. < cfquery name="qname" datasource="dbsource" maxrows="3"> SELECT PUBDATE,DESCR,FTITLE,LINK FROM wiki.url.rssfeed order by id desc </cfquery> <!--- Note here the query returns only the last three quotes and also it is sorted based on the id which is an auto increment ID.---> <cfscript> myStruct = StructNew(); mystruct.link = "http://blog.abusalah.info"; myStruct.title = "Mustafa Abusalah Quote of the Day"; mystruct.description = "Quote of the Day Tutorial"; mystruct.pubDate = Now(); mystruct.version = "rss_2.0"; <!--- Now the Query columns must be mapped to the RSS columns this is done by creating a struct and mapping them to the struct variables. Please not that the fields must be written in capital letter
Post a Comment
Read more