prashant-jbp / lession_2r

SQL GROUP BY Statement

• The GROUP BY statement groups rows that have the same values into summary rows, like "find the number of customers in each country".

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• The GROUP BY statement is often used with aggregate functions .

• Some aggregate functions (COUNT(), MAX(), MIN(), SUM(), AVG()) to group the result-set by one or more columns.

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class Test{
public show(){
System.out.println("jbp");
}