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The GROUP BY statement is passed down to group the rows that have the same values in the table. Grouping allows you to divide data into logical sets so that you can perform a collection of calculations on each group. Groups are built for using the GROUP BY clause in the SELECT statement. The GROUP ...

SQL JOIN A JOIN a clause is used to associate rows from two or more tables, placed on a similar column between them. With the help of joins, we can recover the data from two or more tables rooted in logical relationships between the tables. Joins signalizes how the  SQL Server is compelled ...