Question

请帮助解决这个问题，独立查询如何工作，但下面的代码比较失败，我试图只比较日期而不是时间，所以尝试了这样的查询。

SELECT CAST(getdate() AS DATE)---'2/9/2017 12:00:00 AM'
SELECT CAST('2017/01/15' AS DATE)----'1/15/2017 12:00:00 AM'
SELECT CAST(getdate() AS DATE) > CAST('2017/01/15' AS DATE); -- Error SQLSTATE 42000

Answer 1

您需要将此条件置于上下文中。比如像这样

SELECT case when CAST(getdate() AS DATE) > CAST('2017/01/15' AS DATE) 
            then 1 
            else 0 
       end

Answer 2

您可以尝试使用DATEDIFF（）找出2个日期之间的差异。

选择DATEDIFF（DAY，（CAST（＆＃39; 2017/01/15＆＃39; AS DATE）），（CAST（getdate（）AS DATE）））

Answer 3

尝试这样的事情：

DECLARE @nowDate DATE
SELECT @nowDate = CAST(getdate() AS DATE)

DECLARE @otherDate DATE
SELECT @otherDate = CAST('2017/01/15' AS DATE)

SELECT DATEDIFF(DAY, @nowDate, @otherDate)

Answer 4

$words = array("arif", "arin", "asif", "armin", "arpan");
$pattern = '|^ar|';

$indices = array();
foreach ($words as $i => $word) {
    // if there is a match
    if (preg_match($pattern, $word)) {
        // append the current index to the indices array
        $indices[] = $i;
    }
}

Answer 5

您无法在READ_PHONE_STATE中进行比较，您可以使用以下代码来确定日期是否大于当前日期，或者今天是。

SELECT

SQL Server日期比较引发错误

5 个答案: