Although tables in SQL databases typically contain massive amounts of data, they’re not always in a format that can be used by data analysts. The data records in these tables need to be filtered ...

The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can take several seconds; with the ...

If you are a regular Microsoft Excel user but not quite familiar with Power Query Add-in for Excel, then this post will acquaint you and help you get started with it. Any advanced Excel user faces the ...