Question

So I have a table that looks like this:

field_value      field_label        record_id        data_element        data_id
                    8-7-1966             8            immunization           163
  8-7-1966          1966-8-7            163           immunizDate            164
                                        163           immunizProvider        165

I need to grab all three of these records, dynamically. I can get the first record by doing:

SELECT 
    field_value, field_label, record_id, data_element, data_id 
FROM 
    substance_data 
WHERE 
record_id = 8

But I need to somehow grab the other two records, knowing that that their record_id will equal the data_id of the first record.

Answer 1

SELECT 
    field_value, field_label, record_id, data_element, data_id 
FROM substance_data 
WHERE 
    record_id = 8 
OR  record_id IN (SELECT DISTINCT 
                      data_id 
                  FROM 
                      substance_data 
                  WHERE 
                      record_id = 8
                 )