Python: Create a SQLite database connection to a database that resides in the memory

Last update on April 02 2025 12:40:43 (UTC/GMT +8 hours)

2. In-Memory SQLite DB

Write a Python program to create a SQLite database connection to a database that resides in the memory.

Sample Solution:

Python Code :

import sqlite3
try:
   sqlite_Connection = sqlite3.connect('temp.db')
   conn = sqlite3.connect(':memory:')
   print("\nMemory database created and connected to SQLite.")
   sqlite_select_Query = "select sqlite_version();"
   conn.execute(sqlite_select_Query)
   print("\nSQLite Database Version is: ", sqlite3.version)
   conn.close()
except sqlite3.Error as error:
   print("\nError while connecting to sqlite", error)
finally:
   if (sqlite_Connection):
       sqlite_Connection.close()
       print("\nThe SQLite connection is closed.")

Sample Output:

Memory database created and connected to SQLite.

SQLite Database Version is:  2.6.0

The SQLite connection is closed.

For more Practice: Solve these Related Problems:

• Write a Python program to create an in-memory SQLite database, create a simple table in it, and then print the number of rows in the table (initially zero).
• Write a Python function that creates a SQLite database in memory, inserts a few records, and then retrieves and prints them.
• Write a Python script to benchmark operations (insert, select, update) on an in-memory SQLite database versus a file-based database.
• Write a Python program to create an in-memory SQLite database and demonstrate that the database is volatile by attempting to access it after closing the connection.

Python Code Editor:

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