csv to sqlite code example

Example 1: csv to sqlite python

import csv, sqlite3

con = sqlite3.connect(":memory:") # change to 'sqlite:///your_filename.db'
cur = con.cursor()
cur.execute("CREATE TABLE t (col1, col2);") # use your column names here

with open('data.csv','r') as fin: # `with` statement available in 2.5+
    # csv.DictReader uses first line in file for column headings by default
    dr = csv.DictReader(fin) # comma is default delimiter
    to_db = [(i['col1'], i['col2']) for i in dr]

cur.executemany("INSERT INTO t (col1, col2) VALUES (?, ?);", to_db)
con.commit()
con.close()

Example 2: sqlite to csv statement

import pandas as pd

conn = sqlite3.connect(db_file, isolation_level=None,
                       detect_types=sqlite3.PARSE_COLNAMES)
db_df = pd.read_sql_query("SELECT * FROM table", conn)
db_df.to_csv('database.csv', index=False)