Problems when I have tried execute two consecutive selects

Question

Hi,
I am trying to execute two consecutive selects, when the second sql has been executed, it response "Operation failure of ado2xfa. Imposible find the element in the colection that corresponds with the name" (I have translated the message).
The error happens when I execute the second DB.open
In the data conection I have selected "text" in the commandType with "select * from t1"
First I tried to execute both sqls but, if I try to execute just the "select * from t2" in the first sql command I obtain the same error.
In the data view I have just one db connection linked with table T1, do I need to create one db connection per table?
For example if I want to connect with 6 different tables I will need 6 different DB connection objects.
Somebody know what is the problem?
Thanks
Rubén
var DB;
var record;
var i;
DB = xfa.sourceSet.Oracle
record = xfa.record.Oracle
try {
DB.close();
} catch (e) {}
DB.resolveNode("#command").query.select.value = 'Select * from T1';
DB.open();
DB.first();
for (i=0;i <= record.nodes.length;i++)
console.println(record.nodes.item(0).value);
DB.next();
DB.close();
DB.resolveNode("#command").query.select.value = 'Select * from T2';
DB.open(); <--------LINE THAT PRODUCE THE ERROR---------

Answer 1

It's because the data connection has been set up to expect the fields returned from T1. When you query T2 different fields are returned and it doesn't know what to do with them so it throws an error. You would need to 2 data connections, 1 for T1 and 1 for T2.
Chris
Adobe Enterprise Developer Support