Mysql常用SQL语句集锦

基础篇 //查询时间，友好提示 $sql = "select date_format(create_time, '%Y-%m-%d') as day from table_name"; 复制代码 //int 时间戳类型 $sql = "select from_unixtime(create_time, '%Y-%m-%d') as day from table_name"; 复制代码 //一个sq

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