根据php和sql server中的日期时间从表中查找活动记录

Question

我需要从我的表中获取活动记录。 一条记录处于活动状态意味着它没有过期，过期时间是记录生成后的 2 分钟。 我正在使用 sql server 数据库。 这是我的表的结构

我的代码如下

$serverName = "xxx.xx.x.xxx";
$connectionInfo = array( "Database"=>"xxxxxx", "UID"=>"xxxxx", "PWD"=>"xxxxxx");
$conn = sqlsrv_connect($serverName, $connectionInfo);   
if($conn)
    echo 'success';
else 
    echo "failed";

$currentTime = date('Y-m-d H:i:s');
$query = "SELECT * FROM ApiTockenMaster WHERE Tocken = ? AND DateGenerated <= ? AND Status = ?";
$params = array("xxxxxxx", "2018-09-03 18:06:17.7600000", "Generated");
$result = sqlsrv_query( $conn, $query, $params);
$row = sqlsrv_fetch_array($result);
echo '<pre>'; print_r($row);
echo count($row);

我需要DateGenerated的条件为

currenttime <= DateGenerated + 2 minutes

如何在查询中实现此条件

Answer 1

另一种可能的方法是让 SQL Server 使用CURRENT_TIMESTAMP和DATEADD()进行检查：

<?php
# Connection
$serverName = "xxx.xx.x.xxx";
$connectionInfo = array(
    "Database"=>"xxxxxx", 
    "UID"=>"xxxxx", 
    "PWD"=>"xxxxxx"
);
$conn = sqlsrv_connect($serverName, $connectionInfo);   
if ($conn) {
    echo "Connection established.<br />";
} else {
    echo "Connection could not be established.<br />";
    die(print_r(sqlsrv_errors(), true));
}

# Statement
$query = "
    SELECT * 
    FROM ApiTockenMaster 
    WHERE 
        (Tocken = ?) AND 
        (CURRENT_TIMESTAMP <= DATEADD(mi, 2, DateGenerated)) AND 
        (Status = ?)
";
$params = array(
    "xxxxxxx", 
    "Generated"
);
$result = sqlsrv_query($conn, $query, $params);
if ($result === false){
    die(print_r(sqlsrv_errors(), true));
}

# Result
$row = sqlsrv_fetch_array($result);
echo '<pre>'; 
print_r($row);
echo count($row);
?>

Answer 2

您可以使用DATEADD ：

currenttime <= DATEADD(MINUTE, 2, DateGenerated);

Answer 3

试试这个，我还没有测试过，但它会是这样的。

$currenttime= date("Y-m-d H:i:s",strtotime(date("Y-m-d H:i:s")." +2 minutes"));
$params = array("xxxxxxx", $currenttime, "Generated");