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Python: Create a SQLite table within the database

Python SQLite Database: Exercise-3 with Solution

Write a Python program to connect a database and create a SQLite table within the database.

Structure of agent_master table:

agent_code char(6),
agent_name char(40),
working_area char(35),
commission decimal(10,2),
phone_no char(15) NULL);

Sample Solution:

Python Code :

import sqlite3
from sqlite3 import Error
def sql_connection():
   try:
     conn = sqlite3.connect('mydatabase.db')
     return conn
   except Error:
     print(Error)
def sql_table(conn):
   cursorObj = conn.cursor()
   cursorObj.execute("CREATE TABLE agent_master(agent_code char(6),agent_name char(40),working_area char(35),commission decimal(10,2),phone_no char(15) NULL);")
   print("\nagent_master file has created.")
   conn.commit()
sqllite_conn = sql_connection()
sql_table(sqllite_conn)
if (sqllite_conn):
 sqllite_conn.close()
 print("\nThe SQLite connection is closed.")

Sample Output:

agent_master file has created.

The SQLite connection is closed.

Alternate solution:

Python Code :

import  sqlite3

# connect to the database.
conn  =  sqlite3 . connect ( 'mydatabase.db' )
# defining a cursor
cursor  =  conn . cursor ()

# creating the table (schema) agent_master
cursor . execute ( """
CREATE TABLE agent_master(agent_code char(6),
agent_name char(40),working_area char(35),
commission decimal(10,2),phone_no char(15) NULL);
""" )
print("\nagent_master file has created.") 
# disconnecting ...
conn . close ()
print("\nThe SQLite connection is closed.")

Sample Output:

agent_master file has created.

The SQLite connection is closed.

Python Code Editor:

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Previous: Write a Python program to create a SQLite database connection to a database that resides in the memory.
Next: Write a Python program to list the tables of given SQLite database file.

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Python: Tips of the Day

Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value:

Example:

def tips_map_values(obj, fn):
  ret = {}
  for key in obj.keys():
    ret[key] = fn(obj[key])
  return ret
users = {
  'Owen': { 'user': 'Owen', 'age': 29 },
  'Eddie': { 'user': 'Eddie', 'age': 15 }
}

print(tips_map_values(users, lambda u : u['age'])) # {'Owen': 29, 'Eddie': 15}

Output:

{'Owen': 29, 'Eddie': 15}