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
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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