The 2 Most Important
Excel Functions AND
Lesson 1: Excel Spreadsheets Database Functions (12)
In annex 1 you have found a description of all 12 Excel functions in the "Database" category.
When you are working with a set of data that Excel recognizes as a database including data imported from centralized databases or programs (accounting, marketing, sales, manufacturing) the Excel SUMPRODUCT function is the ultimate reporting tool, the Excel SUBTOTAL function is a great analysis tool and the Excel INDEX/MATCH formulas allow you to virtually create relational databases in Excel.
SUMPRODUCT ¦ INDEX/MATCH ¦ SUBTOTAL ¦ ISERROR ¦ HLOOKUP ¦ LOOKUP ¦ VLOOKUP
AVERAGEIF ¦ AVERAGEIFS ¦ COUNTIF ¦ COUNTIFS ¦ SUMIF ¦ SUMIFS ¦ IFERROR