sql_database.py

import sqlite3

#creating database named
def create():
 conn = None
 conn = sqlite3.connect( "file.db")
 curs = conn.cursor()
 print("database created successfully")


#creating table for database
def table():
 if (curs.fetchone() == 0):
     conn = sqlite3.connect( "file.db")
     curs = conn.cursor()
     base = "create table database(id int,sensor_name text,temperature float,humidity float)"
     curs.execute(base)
     print("table created succesfully in database")
 else:
     create()
  

#inserting one  parameters in  database 
def put_value():
     conn = sqlite3.connect( "file.db")
     curs = conn.cursor()
     base = "insert into database(id,sensor_name,temperature,humidity) values(1,'dht11',23.8,48) "
     curs.execute(base)
     conn.commit()
     print("data inserted succesfully in database")


#insering many data at once in database using executemany
sensor_data=[(2,"dht11",23.7,56.2),
             (3,"dht11",24.1,55.8),
             (4,"dht11",25.6,55.1),
             (5,"dht11",24.9,54.3),
             (6,"dht11",24.5,54.6),
             (7,"dht11",34.0,55.1),
             (8,"dht11",26.4,45.2)]

def put_many():
    conn = sqlite3.connect("file.db")
    curs = conn.cursor()
    base = "insert into database values(?,?,?,?);"
    curs.executemany(base,sensor_data)
    conn.commit()
    print("large data added successfiully")


#fetch first line of data from database
def fetchdata():
    conn = sqlite3.connect( "file.db")
    curs = conn.cursor()
    base = "select * from database"
    res = curs.execute(base)
    print(res.fetchall())

if __name__ == "__main__":
     create()
     table()
     put_value()
     fetchdata()
     put_many()