代码如下: -- 获取一个月前的日期SELECTDATEADD(MONTH,-1,GETDATE())ASOneMonthAgo; 1. 2. 在这条 SQL 语句中: DATEADD是用于添加日期间隔的函数。 MONTH表示时间单位为月份。 -1代表我们要减去一个月。 GETDATE()函数用于获取当前日期。 AS OneMonthAgo是为返回结果命名,更加清晰。 步骤3: 显示结果 执行...
在SQL Server 中,可以使用GETDATE()函数来获取当前的日期和时间。 DECLARE@CurrentDateDATETIME;SET@CurrentDate=GETDATE();-- 获取当前日期时间 1. 2. 2. 查找前一月 使用DATEADD()函数将当前日期减去一个月。 DECLARE@OneMonthAgoDATETIME;SET@OneMonthAgo=DATEADD(MONTH,-1,@CurrentDate);-- 当前日期减去一...
$todayDate = 1639033043; $oneMonthAgoDate = $todayDate - 2419200; SELECT * FROM `sys_users` INNER JOIN sys_user_sessions ON sys_users.id=sys_user_sessions.user_id WHERE sys_user_sessions.login_tstamp BETWEEN '" . strval($oneMonthAgoDate) . "' ...
是指在SQL数据库中,获取最大日期时间的前一天。在SQL中,可以使用MAX函数来获取某一列中的最大日期时间值,然后使用DATEADD函数来对最大日期时间进行减一天的操作。 以下是一个示例的SQL查询语句,用于获取最大日期时间的前一天: 代码语言:txt 复制 SELECT DATEADD(day, -1, MAX(date_column)) AS max_date_minus...
<period column> AT TIME ZONE '<your time zone>' > {< | > | =, ...} date_condition.For more information, see Query data in a system-versioned temporal table.Point-in-time analysis (time travel)Instead of focusing on changes to individual records, time travel scenarios show how entire...
<period column> AT TIME ZONE '<your time zone>' > {< | > | =, ...} date_condition.For more information, see Query data in a system-versioned temporal table.Point-in-time analysis (time travel)Instead of focusing on changes to individual records, time travel scenarios show how entire...
Because it’s SQL Azure, one gets the performance, scalability and reliability without all of the headaches of designing, provisioning and managing the infrastructure. Look for next month’s column, where I’ll expand on the implementation and show how Azure can be added into the mix for ...
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In those UPDATE statements above we've set three different users first_paid_at columns: User ID 1 to the current time (NOW()), User ID 2 to one month ago, and User ID 3 to one year ago. 在上面的那些UPDATE语句中,我们将三个不同的用户first_paid_at列设置为:用户ID 1设置为当前时间(...
这段代码首先声明了一个变量@currentDate用于存储当前日期,然后使用GETDATE()函数将当前日期赋值给该变量。 步骤二:计算一个月前的日期 接下来,我们需要计算一个月前的日期。在 SQL Server 中,我们可以使用DATEADD()函数来进行日期计算。 DECLARE@oneMonthAgoDATE;SET@oneMonthAgo=DATEADD(MONTH,-1,@currentDate);...