A list of these are as follows:įor this tutorial, we will be primarily using the execute method. There are multiple methods supported by cursor objects for SQL query execution. # Previous Python Statements import sqlite3 as db con = db.connect( "Folder_Location/sample.db") # Creating a cursor cur = con.cursor() 4.) Cursor Methods and SQL QueriesĪfter creating a cursor object, we can use its methods for SQL query execution. The code block below demonstrates the creation of the cursor object. We can create an instance of this class using the cursor method of the connection objects. PEP 249 recommends the use of cursors for SQL query execution.Ī cursor is a class of objects with methods defined to support SQL query execution. It ensures that the approach to execute SQL queries using Python codes remains consistent across databases and enables portability. PEP 249 is a Python standard guideline to design database interfaces (like SQLite3 module). Screenshot - Sqlite Browser (Image by Author) 3.) PEP 249 & Cursorsīefore we learn to execute SQL queries using SQLite3, let us have a look at PEP 249 and cursors. Below is the screenshot of the application interface: To view this database, its associated tables, and data within these tables, one can use a third party GUI based application, SQLitebrowser. If the database with the desired name already exists at the folder location, the library establishes a new connection. import sqlite3 as db con = db.connect( "Folder_Location/sample.db") The code block below demonstrates the same. 2.) How do you create a database?Ĭreating an SQLite database is as simple as executing an SQLite3 connect function by passing the desired name and folder location as arguments. It provides an interface to work with the SQLite database and ensures that the database management becomes part of your standard Python code. SQLite3 is a Python module that is by default available with standard Python installation. Being server-less makes SQLite a perfect candidate to be used for the development of prototypes, mobile applications, and game development. SQLiteis a self-contained and server-less C application library that provides an on-disk relational database management system (RDBMS). 1.) A brief note on SQLite DB and SQLite3 Module It is a Python module that creates a free, on-disk relational database management system. In this tutorial, we will introduce you to SQLite3. But, due to factors like cost and time to go-live, this solution takes a back seat. For such scenarios, having database software seems to be an appropriate solution. As the count of Excel and CSV files increases, the management of these becomes a real challenge. In the world of information reporting, we primarily rely on Excel sheets and CSV files for our data storage needs.
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