在 OrientDB 查询中提取,提取
Extract in, out in OrientDB query
我在 OrientDB 中有一个查询:
select in, out from E_Employe
- "in" 是 link 从 class "User" 到一个顶点;
- "out" 是从 class "Company";
到顶点的 link
- "E_Employee" 是 "User" 和 "Company" 之间的边。
我需要将 "User" 中的一些属性(例如 "username"、"email")而不是 "in",而不是 "out",一些来自 "Company" 的属性(例如 "name"、"address"),我不知道该怎么做。
您可以只使用点符号:
select
in.username as name, in.email as email,
out.name as companyName, out.address as companyAddress
from E_Employe
我在 OrientDB 中有一个查询:
select in, out from E_Employe
- "in" 是 link 从 class "User" 到一个顶点;
- "out" 是从 class "Company"; 到顶点的 link
- "E_Employee" 是 "User" 和 "Company" 之间的边。
我需要将 "User" 中的一些属性(例如 "username"、"email")而不是 "in",而不是 "out",一些来自 "Company" 的属性(例如 "name"、"address"),我不知道该怎么做。
您可以只使用点符号:
select
in.username as name, in.email as email,
out.name as companyName, out.address as companyAddress
from E_Employe