Hot to use the data grid to edit column objects

I have a simple object type:
CREATE OR REPLACE TYPE TIMESLICE AS OBJECT
SINCE TIMESTAMP (6),
UNTIL TIMESTAMP (6)
And a simple table with one column containing objects of this type:
CREATE TABLE TABLE1
COLUMN1 TIMESLICE
I can insert into the table:
INSERT INTO SLICES VALUES (timeslice (NULL, NULL));
But when I try to use the data grid and write there the same string "timeslice (NULL, NULL)" as value I get the following error during commit:
One error saving changes to table "TABLE1":
Row 1: ORA-06550: line 1, column 55:
PL/SQL: ORA-00932: inconsistent datatypes: expected UDT got CHAR
ORA-06550: line 1, column 7:
PL/SQL: SQL Statement ignored
The data grid interprets the value as characters instead of an expression.
How do I have to enter the object in the data grid?

Is it possible to access the cache datasource inside the script component which is available in the same data flow task??
Thanks in advance,
Saravanan

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Hello Joel;
In retrieving your data - what is your php returning to FB, an object, object array, an array? Either way, I have a brief example below that an object(s) is being returned. Pull the data from the lastResult in a ResultEvent. The object instantiated in the resultEvent will contain your data and you can do what you want from there.
Also, I always use Network Monitor to see what data (if any) is being returned from the server, you can also see how it is being sent back.
John
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Okay thanks.
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