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How to insert a pandas dataframe to an already existing table in a database?

Hello Guys, How are you all? Hope You all Are Fine. Today We Are Going To learn about How to insert a pandas dataframe to an already existing table in a database 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 insert a pandas dataframe to an already existing table in a database?

  1. How to insert a pandas dataframe to an already existing table in a database?

    make use of if_exists parameter:
    df.to_sql('db_table2', engine, if_exists='replace')

  2. insert a pandas dataframe to an already existing table in a database

    make use of if_exists parameter:
    df.to_sql('db_table2', engine, if_exists='replace')

Method 1

make use of if_exists parameter:

df.to_sql('db_table2', engine, if_exists='replace')

or

df.to_sql('db_table2', engine, if_exists='append')

from docstring:

"""
if_exists : {'fail', 'replace', 'append'}, default 'fail'
    - fail: If table exists, do nothing.
    - replace: If table exists, drop it, recreate it, and insert data.
    - append: If table exists, insert data. Create if does not exist.
"""

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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