用于循环的OrientDB

我想用for循环创建单个查询

例如，我有表1

[id , Name]
[ 1 , X1]
[ 2 , X2]
[ 3 , X3]

第二桌

[id, Name]
[ 5 , Y5]
[ 6 , Y6]
[ 7 , Y7]

我想要的就是有一个包含以下数据的新表

[NewName]
[X1-Y5]
[X1-Y6]
[X1-Y7]
[X2-Y5]
[X2-Y6]
[X1-Y7]
[X3-Y5]
[X3-Y6]
[X3-Y7]

我无法创建它，我只能使用first（）和last（）命令来创建表的first或alst行

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提前感谢

要在新表中获得所需的组合，请尝试以下javascript函数：

var g = orient.getGraph();
var table1 = g.command("sql","select from table1");
var table2 = g.command("sql","select from table2");

for(i = 0; i < table1.length; i++)
{
  for(j = 0; j < table2.length; j++)
  {
    g.command("sql","insert into table3(newName) values ('"+ table1[i].getRecord().field("name") +" - "+ table2[j].getRecord().field("name") +"')")
  }
}

var g = orient.getGraph();
var table1 = g.command("sql","select from table1");
var table2 = g.command("sql","select from table2");

for(i = 0; i < table1.length; i++)
{
  for(j = 0; j < table2.length; j++)
  {
    g.command("sql","create edge connection from "+ table1[i].getId() +" to "+ table2[j].getId() +"")
  }
}

这样，您就有了一种联接表，如果这是您的意图，那么由于OrientDB中没有联接，因此不是正确的联接方式，相反，您可以使用Edge、Link

如果您正在寻找如何做自己想做的事情，可以尝试以下javascript函数：

var g = orient.getGraph();
var table1 = g.command("sql","select from table1");
var table2 = g.command("sql","select from table2");

for(i = 0; i < table1.length; i++)
{
  for(j = 0; j < table2.length; j++)
  {
    g.command("sql","insert into table3(newName) values ('"+ table1[i].getRecord().field("name") +" - "+ table2[j].getRecord().field("name") +"')")
  }
}

var g = orient.getGraph();
var table1 = g.command("sql","select from table1");
var table2 = g.command("sql","select from table2");

for(i = 0; i < table1.length; i++)
{
  for(j = 0; j < table2.length; j++)
  {
    g.command("sql","create edge connection from "+ table1[i].getId() +" to "+ table2[j].getId() +"")
  }
}

希望能有帮助

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关于

不确定我是否正确：您是否试图在两个类之间创建边？或者你正在尝试进行某种类型的联接吗？不是，这是一个simlpe SQL表。我正在尝试只使用一个查询来实现这一点