When utilizing spreadsheets, cell references are vital. They allow you to directly indicate specific cells, making it easier to execute calculations and adjust data. There are two main types of cell references: absolute and relative. Static cell references stay the same, even when a formula is copied to another cell. They are shown by adding a do

SQL's GROUP BY clause|grouping function|aggregation statement} is a powerful tool for summarizing data. It allows you to aggregate rows with the same value in one or more columns into a single row, making it easier to analyze trends and patterns. Visualize you have a table of sales transactions. Using GROUP BY, you could calculate the total revenue