MySql：计算价格范围内的行数？

如果我想知道我有多少个条目，其中产品价格在500-1000范围内。我该怎么做

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谢谢

我猜你的意思是：

SELECT COUNT(*) FROM products WHERE product_price >= 500 AND product_price <= 1000

从产品价格>=500且产品价格使用的产品中选择计数（*）：

SELECT COUNT(*) FROM products WHERE product_price >= 500 AND product_price < 1000

SELECT
SUM(CASE WHEN product_price < 500 THEN 1 ELSE 0 END) AS price_range_1,
SUM(CASE WHEN product_price >= 500 AND product_price < 1000 THEN 1 ELSE 0 END) AS price_range_2,
SUM(CASE WHEN product_price >= 1000 THEN 1 ELSE 0 END) AS price_range_3
FROM products

SELECT COUNT(*) FROM the_table WHERE price BETWEEN 10 AND 20;

SELECT count(*) FROM table WHERE price BETWEEN 500 AND 1000