Have this query: SELECT round(((Julianday('now') - 2415018.5) - P.DOB) / 365.25, 0) AS AGE, AVG(BM.numeric_value) AS avg_Hb_Male, AVG(BF.numeric_value) as avg_Hb_Female FROM PATIENTS P INNER JOIN NUM_VALUES BM ON(P.ID = BM.ID AND P.SEX = 'Male') INNER join NUM_VALUES BF ON(P.ID = BF.ID AND P.SEX = 'Female') WHERE BF.term_text = 'Haemoglobin estimation' and BM.term_text = 'Haemoglobin estimation' GROUP BY AGE HAVING AGE > 18 and AGE < 98 ORDER BY AGE ASC
Which always used to run fine and return rows. There is no error, but there are no returned rows. I have checked all the where conditions and they are all fine. When I leave out either of the NUM_VALUES joins (so either male or female patients) then it runs fine and returns data as expected. Something like this runs fine as well and returns the right data: select p.sex, round(avg(n.numeric_value), 2) as avg_Hb from patients p inner join num_values n on(p.id = n.id) where n.term_text = 'Haemoglobin estimation' group by p.sex Any idea what could be the problem here? Running version 3.22.0. RBS _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users