Question

我按照以下方式运行查询： -

unack_query = """
    SELECT aa.AlertObjectID,
    aa.TriggeredMessage,
    aa.Acknowledged,
    aa.AcknowledgedBy,
    aa.TriggeredDateTime,
    ao.EntityType,
    ao.EntityCaption,
    node.Caption,
    node.CustomProperties.DeviceOwner
    FROM Orion.AlertActive aa 
    INNER JOIN  Orion.AlertObjects ao
        ON aa.AlertObjectID = ao.AlertObjectID   
        LEFT JOIN Orion.Nodes node
            ON ao.RelatedNodeId = NodeID
    WHERE node.CustomProperties.DeviceOwner = 'Network Team' AND aa.Acknowledged = False
    ORDER BY aa.TriggeredDateTime DESC 
    """

此查询返回零结果。但是，当我从查询中删除“AND aa.Acknowledged = False”时，它可以工作。我还可以在结果中看到Acknowledged字段是一个布尔值。任何人都可以指出我为什么会失败的正确方向？

由于

Answer 1

尝试检查AND aa.Acknowledged = TRUE是否适用于您没有条件的情况..（可能您没有错误值）

或者可能是'False'作为字符串

 WHERE node.CustomProperties.DeviceOwner = 'Network Team' AND aa.Acknowledged = 'False'

或者你没有价值所以你也应该检查

WHERE node.CustomProperties.DeviceOwner = 'Network Team' AND aa.Acknowledged is null

SQLQuery - 跨两个表的WHERE语句返回0结果

1 个答案: