YEAR()
和MONTH()
函数按月份查询数据。,,``sql,SELECT * FROM table_name WHERE YEAR(date_column) = 2021 AND MONTH(date_column) = 5;,
``,,这条SQL语句将查询2021年5月的数据。YEAR()
和MONTH()
函数按月份查询数据。,,``sql,SELECT * FROM table_name WHERE YEAR(date_column) = 2021 AND MONTH(date_column) = 5;,
``,,这条SQL语句将查询2021年5月的数据。ping 目标IP地址或域名 n 包数
,即可指定发送多少个ping包。ping www.example.com n 4
将发送4个ping包。Powered By Z-BlogPHP 1.7.3
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