When you use the GROUP BY clause in a SQL query, the result set will be grouped into subsets based on the values in the specified column(s). To limit the number of rows returned after the grouping is applied, you can use the LIMIT clause.

The syntax for using LIMIT after GROUP BY in a SQL query is as follows:

SELECT column1, column2, ..., columnN
FROM table_name
GROUP BY column1, column2, ..., columnN
LIMIT number_of_rows;

In this syntax, column1, column2, ..., columnN represents the columns on which the grouping is performed, table_name represents the name of the table from which data is being retrieved, and number_of_rows represents the maximum number of rows to be returned.

For example, if you want to retrieve the top 10 highest sales amounts for each region from a sales table, you can use the following SQL query:

SELECT region, product, SUM(amount) AS total_sales
FROM sales
GROUP BY region, product
ORDER BY region, total_sales DESC
LIMIT 10;

This query will group the sales data by region and product and then return the top 10 highest sales amounts for each region. The ORDER BY clause sorts the result set by region and total sales amount in descending order before applying the LIMIT clause.
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