Developers Getting Started With i2b2
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When the User runs a query with User created Data Request option selected, a row is logged in the QT_Query_Result_Instance for the  result_type_oid id generated in the QT_Result_type

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Metadata about data request queries and Data file generation are stored in the QT_XML_RESULT table, in the XML_VALUE field. The Value column gets updated with the change in Status of the Data Request. Following are the staus change in the <data column> tag

Data Request StatusData column Value
SubmittedSubmitted
WithdrawnCancelled
DeniedIncomplete
File in ProgressQueued
File availableFile available


Column Name Value (example)
Result_Instance_Id541
Value<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <ns10:i2b2_result_envelope xmlns:ns6="http://www.i2b2.org/xsd/cell/crc/psm/querydefinition/1.1/" xmlns:ns5="http://www.i2b2.org/xsd/hive/msg/1.1/" xmlns:ns8="http://www.i2b2.org/xsd/cell/pm/1.1/" xmlns:ns7="http://www.i2b2.org/xsd/cell/crc/psm/analysisdefinition/1.1/" xmlns:ns9="http://www.i2b2.org/xsd/cell/ont/1.1/" xmlns:ns10="http://www.i2b2.org/xsd/hive/msg/result/1.1/" xmlns:ns2="http://www.i2b2.org/xsd/hive/pdo/1.1/" xmlns:ns4="http://www.i2b2.org/xsd/cell/crc/psm/1.1/" xmlns:ns3="http://www.i2b2.org/xsd/cell/crc/pdo/1.1/">     <body>         <ns10:result name="RPDO_144">             <data column="SUBMITTED" type="string">20250513_172906</data>             <data column="EMAIL" type="string">act@gmail.com</data>         </ns10:result>     </body> </ns10:i2b2_result_envelope> 

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Developers Getting Started With i2b2 getstarted