我在互联网上搜索但它永远不会有效...... 我用别名的方式不同, 但仍然没有工作。我只需要清楚 了解如何在SQL中执行别名。
SELECT Property_Return.`*`,
Property_Return_Subset.`*`,
Property_Acknowledgement_Subset.`*` ,
Property.`*`,
Property_Acknowledgement.*
FROM Property_Return
INNER JOIN Property_Return_Subset
ON Property_Return_Subset.fkPropertyReturn_Id
= Property_Return.PropertyReturn_Id
INNER JOIN Property_Acknowledgement_Subset
ON Property_Acknowledgement_Subset.parproperty_Id
= Property_Return_Subset.fkProperty_Id
INNER JOIN Property
ON Property.Property_Id
= Property_Acknowledgement_Subset.fkProperty_Id
INNER JOIN Property_Acknowledgement_Subset
ON Property_Acknowledgement_Subset.fkPar_Id
= Property_Acknowledgment.Par_Id;