dataframe to sql code example

Example 1: pandas to sql index

resultDf.to_sql('table_name', engine, schema="schema_name", if_exists="append", index=False)

Example 2: how to transfer pandas datafra,e to sqlite

import sqlite3 as db
# Create your connection.
conn = db.connect('connection_name')
df.to_sql(name='table_name', con=conn)

Example 3: df to sql pandas sql achemy

from sqlalchemy import create_engine
engine = create_engine('sqlite://', echo=False)
df.to_sql('users', con=engine)
engine.execute("SELECT * FROM users").fetchall()

Example 4: SQL to DataFrame

import pandas as pd
import pyodbc 
conn = pyodbc.connect('Driver={SQL Server};'
                      'Server=RON\SQLEXPRESS;'
                      'Database=TestDB;'
                      'Trusted_Connection=yes;')

cursor = conn.cursor()

sql_query = pd.read_sql_query('SELECT * FROM TestDB.dbo.Person',conn)
print(sql_query)
print(type(sql_query))

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Misc Example

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