Question

On在Oriendb（2.1.2）中执行以下查询时，@ rid返回否定rid并且实际摆脱存在于rid键中。请参阅下面的更多解释

子查询：

select @rid from actions

OP：

{
    "result": [
        {
            "@type": "d",
            **"@rid": "#-2:0",**
            "@version": 0,
            **"rid": "#12:24",**
            "@fieldTypes": "rid=x"
        }
    ],
    "notification": "Query executed in 0.026 sec. Returned 1 record(s)"
}

主要查询：

INSERT INTO activityDetails SET name = "Dummy",actionMap ={"1":(**select  @rid from action where start is not null**-->Returns a invalid Rid),"2":(select * from action where stop is not null)};

OP：

com.orientechnologies.orient.core.exception.OValidationException: The field 'activityDetails.actionMap' has been declared as LINKMAP but the value is not a record or a record-id

如何在子查询中替换rid取代@rid？

Answer 1

负RID意味着是暂时的。提交事务时，在提交RID更改并在对象中更新后，将为此beacause分配一个真实的RID。

进行插入时，只会从选择中返回一条记录？你可以通过选择“限制1”来进行测试

Oriendb Select @ rid from table returns -2：0

1 个答案: