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SQL IN 操作符
SQL IN 操作符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_nameWHERE column_name IN (value1,value2,...);演示数据库在本教程中，我们将使用 RUNOOB 样本数据库。下面是选自 "Websites" 表的数据：+----+--------------+---------------------------+-------+---------+| id | name | url | alexa | country |+----+--------------+---------------------------+-------+---------+| 1 | Google | https:
//www.google.cm/ | 1 | USA || 2 | 淘宝 | https:
//www.taobao.com/ | 13 | CN || 3 | k88.net | http:
//www.k88.net/ | 4689 | CN || 4 | 微博 | http:
//weibo.com/ | 20 | CN || 5 | Facebook | https:
//www.facebook.com/ | 3 | USA || 7 | stackoverflow | http:
//stackoverflow.com/ | 0 | IND |+----+---------------+---------------------------+-------+---------+IN 操作符实例下面的 SQL 语句选取 name 为 "Google" 或 "k88.net" 的所有网站：实例SELECT * FROM WebsitesWHERE name IN ('Google','k88.net');执行输出结果：
//www.google.cm/ | 1 | USA || 2 | 淘宝 | https:
//www.taobao.com/ | 13 | CN || 3 | k88.net | http:
//www.k88.net/ | 4689 | CN || 4 | 微博 | http:
//weibo.com/ | 20 | CN || 5 | Facebook | https:
//www.facebook.com/ | 3 | USA || 7 | stackoverflow | http:
//stackoverflow.com/ | 0 | IND |+----+---------------+---------------------------+-------+---------+IN 操作符实例下面的 SQL 语句选取 name 为 "Google" 或 "k88.net" 的所有网站：实例SELECT * FROM WebsitesWHERE name IN ('Google','k88.net');执行输出结果：
SQL IN 操作符
