我正在使用 2 个数据库,我需要找到与最接近的时间匹配的记录。这两个字段都是 datetime()。
所以本质上:
table1.time = 2012-06-07 15:30:00
table2.time = 2012-06-07 15:30:01
table2.time = 2012-06-07 15:30:02
table2.time = 2012-06-07 15:30:03
注意:我正在查询的表 (table2) 是一个 mssql 表,而 table1.time 是一个 datetime() 时间。我需要在 table2 中找到与 table1.time 最接近的行,但我不能保证它会完全匹配,所以我需要最接近的。我只需要返回 1 个结果。
我根据上一个 stackoverflow 查询中的示例尝试了下面的 SQL,但它无法正常工作。
Table1 是一个 mysql 数据库,其中 table2 是 mssql,查询发生在 table2 (mssql)
try {
$sql = "
SELECT
PCO_AGENT.NAME,
PCO_INBOUNDLOG.LOGIN AS LOGINID,
PCO_INBOUNDLOG.PHONE AS CALLERID,
PCO_INBOUNDLOG.STATION AS EXTEN,
PCO_INBOUNDLOG.TALKTIME AS CALLLENGTH,
PCO_INBOUNDLOG.CHANNELRECORDID AS RECORDINGID,
PCO_SOFTPHONECALLLOG.RDATE,
PCO_INBOUNDLOG.RDATE AS INBOUNDDATE
FROM
PCO_INBOUNDLOG
INNER JOIN
PCO_LOGINAGENT ON PCO_INBOUNDLOG.LOGIN = PCO_LOGINAGENT.LOGIN
INNER JOIN
PCO_SOFTPHONECALLLOG ON PCO_INBOUNDLOG.ID = PCO_SOFTPHONECALLLOG.CONTACTID
INNER JOIN
PCO_AGENT ON PCO_LOGINAGENT.AGENTID = PCO_AGENT.ID
WHERE
PCO_INBOUNDLOG.STATION = :extension
AND ABS(DATEDIFF(:start,PCO_SOFTPHONECALLLOG.RDATE))
";
$arr = array(":extension" => $array['extension'], ":start" => $array['start']);
$query = $this->mssql->prepare($sql);
$query->execute($arr);
$row = $query->fetchAll(PDO::FETCH_ASSOC);
$this->pre($row);
}
我目前收到以下错误:
SQLSTATE[HY000]: General error: 174 General SQL Server error: Check messages from the SQL Server [174] (severity 15) [(null)]SQLSTATE[HY000]: General error: 174 General SQL Server error: Check messages from the SQL Server [174] (severity 15) [(null)]