Question

这是我现在正在使用的查询：

INSERT INTO details SET name = "INITIALIZE",actionMap ={"1":12:1,"2":12:2};

这里12：1,12：2摆脱了另一张桌子。我面临很多问题，硬编码这些摆脱的价值。为了避免这种情况，我不知道这个问题。喜欢像这样添加查询

INSERT INTO details SET name = "INITIALIZE",actionMap ={"1":(select @rid from action where start is not null),"2":(select @rid from action where stop is not null)};

我得到了这个例外：

com.orientechnologies.orient.core.exception.OValidationException：The 字段＆detail; action.actionMap＆＃39;已被宣布为LINKMAP但是 value不是记录或记录ID

那么如何更改我的查询以帮助我的案例。

Answer 1

这确实可以使用批次以更优雅的方式完成。

这只是为了创建你想要的对象

INSERT INTO details SET name = "INITIALIZE"

我们将把它变成

let $inserted = INSERT INTO details SET name = "INITIALIZE"

添加您想要添加的边缘：

CREATE EDGE actionMap FROM $inserted TO (SELECT FROM action WHERE start is not null )
CREATE EDGE actionMap FROM $inserted TO (SELECT FROM action WHERE stop is not null )

所以你必须运行的整个批次是

let $inserted = INSERT INTO details SET name = "INITIALIZE"
CREATE EDGE actionMap FROM $inserted TO (SELECT FROM action WHERE start is not null )
CREATE EDGE actionMap FROM $inserted TO (SELECT FROM action WHERE stop is not null )

如果您对此有任何疑问，请随时提出。

Answer 2

改编自this question

let $a1 = SELECT FROM action WHERE start IS NOT null
let $a2 = SELECT FROM action WHERE stop IS NOT null
INSERT INTO details SET name = "INITIALIZE", actionMap = {"1": $a1[0], "2": $a2[0]}

这是原始答案，适用于LINKLIST

您的错误说明：

字段＆detail; action.actionMap＆＃39;已被声明为LINKMAP，但该值不是记录或记录ID

您正在尝试将值存储到应该存储引用的字段中

根据orientDB docs

您存储如下参考：

INSERT INTO Profiles SET name = 'Luca', friends = [#10:3, #10:4]

或SELECT子查询：

INSERT INTO Diver SET name = 'Luca', buddy = (SELECT FROM Diver 
          WHERE name = 'Marko')

这将使您的代码成为：

INSERT INTO details SET name = "INITIALIZE", actionMap =[(SELECT FROM action WHERE start IS NOT null),(SELECT FROM action WHERE stop IS NOT null)];

额外提示：

如果您同时对您的操作进行操作，那么您可以使用一个查询添加details和那些action：

INSERT INTO details SET name = "INITIALIZE", actionMap = [(INSERT INTO yourActionTable SET yourActionField = 'yourFirstAction'), (INSERT INTO yourActionTable SET yourActionField = 'YourSecondAction')]

在orientDB中编写子查询

2 个答案: