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進出口運行一個查詢按照下面的: -的SQLQuery - 在跨越兩個表的語句返回0結果
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
"""
該查詢返回結果爲零。但是,當我從查詢中刪除「AND aa.Acknowledged = False」時,它就起作用了。我還可以在結果中看到已確認字段是布爾值。任何人都可以向正確的方向指出我爲什麼會失敗?
感謝
你りght,我得到沒有設置任何東西,如果不是真,這工作WHERE node.CustomProperties.DeviceOwner ='網絡團隊'和aa.Acknowledged IS Null – AlexW