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How to open and convert sqlite database to pandas dataframe

Hello Guys, How are you all? Hope You all Are Fine. Today We Are Going To learn about How to open and convert sqlite database to pandas dataframe in Python. So Here I am Explain to you all the possible Methods here.

Without wasting your time, Let’s start This Article.

Table of Contents

How to open and convert sqlite database to pandas dataframe?

  1. How to open and convert sqlite database to pandas dataframe?

    opens a connection to the database. There are no records queried up to this. So you have to execute a query afterward and provide this to the pandas DataFrame constructor.

  2. open and convert sqlite database to pandas dataframe

    opens a connection to the database. There are no records queried up to this. So you have to execute a query afterward and provide this to the pandas DataFrame constructor.

Method 1

Despite sqlite being part of the Python Standard Library and is a nice and easy interface to SQLite databases, the Pandas tutorial states:

Note In order to use read_sql_table(), you must have the SQLAlchemy optional dependency installed.

But Pandas still supports sqlite3 access if you want to avoid installing SQLAlchemy:

import sqlite3
import pandas as pd
# Create your connection.
cnx = sqlite3.connect('file.db')

df = pd.read_sql_query("SELECT * FROM table_name", cnx)

As stated here, but you need to know the name of the used table in advance.

Method 2

The line

data = sqlite3.connect('data.db')

opens a connection to the database. There are no records queried up to this. So you have to execute a query afterward and provide this to the pandas DataFrame constructor.

It should look similar to this

import sqlite3
import pandas as pd

dat = sqlite3.connect('data.db')
query = dat.execute("SELECT * From <TABLENAME>")
cols = [column[0] for column in query.description]
results= pd.DataFrame.from_records(data = query.fetchall(), columns = cols)

I am not really firm with SQL commands, so you should check the correctness of the query. should be the name of the table in your database.

Summery

It’s all About this issue. Hope all Methods helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which Method worked for you? Thank You.

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