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SQL – Group By
SQL – Group By Table Of Contents: What Is SQL Group By ? Syntax Of SQL Group By. Examples Of SQL Group By. (1) What Is SQL Group By? The GROUP BY statement groups rows that have the same values into summary rows, like “find the number of customers in each country”. The GROUP BY statement is often used with aggregate functions (COUNT(), MAX(), MIN(), SUM(), AVG()) to group the result set by one or more columns. (2) Syntax Of SQL Group By? SELECT column_name(s) FROM table_name WHERE condition GROUP BY column_name(s) ORDER BY column_name(s); (3) Examples Of SQL Group By? Example-1 SELECT COUNT(CustomerID), Country FROM Customers GROUP
