Understanding SQL query structure

This is basically SQL’s version of BODMAS/PEDMAS. We write SQL one way… but SQL executes it differently. The golden rule: F/JWGBHSOL/O Looks gibberish at first. Actually very important. How SQL Executes Queries F/J → FROM / JOIN Build the dataset. FROM → grab the main table JOIN → combine other tables W → WHERE First filter. Removes rows that don’t match conditions. GB → GROUP BY Create groups from rows. Turns row-level data into g...