标签: mysql sql
我想计算表中整数大于特定值的所有行。怎么做?
示例:
If the table looks like (name) |(age) ------------- Marvin | 25 Bob | 30 John | 45 I want to count how many people are younger than 40.
它应该只返回一个整数。
答案 0 :(得分:2)
SELECT COUNT(1) 从表 年龄< 40