IN 操作符

IN 操作符允许您在 WHERE 子句中规定多个值。

SQL IN 语法

SELECT column_name(s)
FROM table_name
WHERE column_name IN (value1,value2,...);

举例：

选取 name 为 "Jack" 或 "Mary" 的所有网站

SELECT * FROM Websites
WHERE name IN ('Jack','Mary');

 

转载于:https://www.cnblogs.com/jiablogs/p/8807456.html