The GROUP BY clause…..will gather all of the rows together that contain data in the specified column(s).
{"Image DocumentName": "The GROUP BY clause\u2026..will gather all of the rows together that contain data in the specified column(s).", "Image ImageDescription": "It will also allow aggregate functions to be performed on the one or more columns. For example: Let s say you want to retrieve a list of the highest paid salaries in each dept: SELECT max(salary), dept FROM employee. GROUP BY dept; The above statement selects the maximum salary for the people in each unique department. Let\u2019s look at the syntax: SELECT column1, SUM(column2) FROM list-of-tables GROUP BY column-list ;", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}