group by and having clause code example

Example 1: SQL group by having clause

SELECT
    customer_id,
    YEAR (order_date),
    COUNT (order_id) order_count
FROM
    sales.orders
GROUP BY
    customer_id,
    YEAR (order_date)
HAVING
    COUNT (order_id) >= 2
ORDER BY
    customer_id;
Code language: SQL (Structured Query Language) (sql)

Example 2: sql count having

SELECT COUNT( * ) 
FROM agents 
HAVING COUNT(*)>1; --count is greater than 1