Invoice Number Format: Description: Ensures that the invoice number follows a specific format. Example: The invoice number should be a...

Name Format: Description: Ensures that the customer's name follows a specific format. Example: The name should contain alphabetic...

Product Code Uniqueness: Description: Ensures that each product has a unique identifier. Example: No two products should have the same...

data validation rules: Required Fields: Description: This rule ensures that certain fields must be filled out. Example: In an online...

Scenario: Suppose you work for an e-commerce company, and you have a dataset containing information about customer purchases. The dataset...

Intellipaat Website: https://intellipaat.com/blog/interview-questions/etl-interview-questions/ ProjectPro Website:...

A fact table is a central table in a star schema or snowflake schema of a data warehouse. It contains quantitative data (facts) related...

Designing a star schema involves organizing data in a way that facilitates efficient querying and reporting. It's a popular schema for...

major task categories of data engineering with examples and associated tools: 1. Data Ingestion and Collection: • Example: Ingesting log...