dummy-dataset

Dummy Dataset Generation

Generate realistic dummy datasets for testing with customizable columns, constraints, and output formats (CSV, JSON, SQL, Python script). Creates executable scripts or direct data files for immediate use.

Use when: Creating test data, generating sample datasets, building realistic mock data for development, or populating test environments.

Arguments:

Step-by-Step Process

Template: Python Script Output

import csv
import json
from datetime import datetime, timedelta
import random

# Configuration
ROWS = $ROWS
FILENAME = "$DATASET_TYPE.csv"

# Column definitions with realistic value generators
columns = {
    "id": "auto-increment",
    "name": "first_last_name",
    "email": "email",
    "created_at": "timestamp",
    # Add more columns...
}

def generate_dataset():
    """Generate realistic dummy dataset"""
    data = []
    for i in range(1, ROWS + 1):
        record = {
            "id": f"U{i:06d}",
            # Generate values based on column definitions
        }
        data.append(record)
    return data

def save_as_csv(data, filename):
    """Save dataset as CSV"""
    with open(filename, 'w', newline='') as f:
        writer = csv.DictWriter(f, fieldnames=data[0].keys())
        writer.writeheader()
        writer.writerows(data)

if __name__ == "__main__":
    dataset = generate_dataset()
    save_as_csv(dataset, FILENAME)
    print(f"Generated {len(dataset)} records in {FILENAME}")

Example Dataset Specification

Dataset Type: Customer Feedback

Columns:

Constraints:

Output Deliverables

Output Formats

CSV: Flat tabular format, easy to import into spreadsheets and databases

JSON: Nested structure, ideal for APIs and NoSQL databases

SQL: INSERT statements, directly executable on relational databases

Python Script: Executable generator for custom or large datasets