Changes between Version 7 and Version 8 of i2b2 Database Structure
- Timestamp:
- 02/21/11 08:16:21 (14 years ago)
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i2b2 Database Structure
v7 v8 1 1 == i2b2 - DB Basics == 2 2 3 This is a very bare basics. At this stage we should be primarily interested in the observation_fact table and its relationship with the concept_dimension table within the CRC Cell. And then the correspondence with any ontology tables within the Ontology Cell. Interest in the patient_dimension, visit_dimension and other of the tables within the CRC are a little further down the line. 3 This is a very bare basics. At this stage we should be primarily interested in the observation_fact table and its relationship with the concept_dimension table within the CRC Cell. And then the correspondence with any ontology tables within the Ontology Cell. Interest in the patient_dimension, visit_dimension and other of the tables within the CRC are a little further down the line.[[BR]] 4 4 5 There can be a number of ontology tables within the Ontology Cell. We know which are ontology tables by an entry in the table_access table.[[BR]] 6 7 The QueryTool uses the ontology tables within the Ontology Cell to format queries for submission against the tables within the CRC Cell. 5 8 {{{ 6 9 +-------------CRC Cell-------------+ +-----------Ontology Cell---------+ … … 26 29 +----------------------------------+ 27 30 }}} 28 There is much more to it than the above suggests. It needs a deal of studying.[[BR]]29 There can be a number of ontology tables within the Ontology Cell. We know which are ontology tables by an entry in the table_access table.