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Big data & Spark

PySpark jobs, partitioning, batch processing, and large-dataset transform patterns.

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Big data & Spark easy

How to select specific columns in Python with SQLite

A reusable function that connects to a SQLite database and returns only the requested columns from a given table.

sqlite sql database
Python 
import sqlite3

def select_pruned_columns(db_path, table, columns):
    with sqlite3.connect(db_path) as conn:
        cursor = conn.cursor()
        col_list = ", ".join(columns)
        query = f"SELECT {col_list} FROM {table}"
        return cursor.execute(query).fetchall()

if __name__ == "__main__":
    conn = sq…
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