Not only does it waste disk space, if any of the data changes, the fields would have to be recalculated. It is better to create the calculations when needed. We can create calculations in queries ...

Analyze database contents using basic, intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database ...

Fortunately, Microsoft provides a tool that simplifies and enhances data analysis tasks. Excel Power Query makes importing, cleaning, and analyzing even the most enormous datasets accessible.

Cybercriminals on the Indian dark web are most interested in databases, access to company infrastructure and bank card data.