Update multiple columns on a row with a single select in sqlite

Question

In SQLite I need to update row counts of a related table.

The query below does what I want but it walks the table multiple times to get the counts:

U         


        

Answer 1

@cha why not check if exists?

INSERT OR REPLACE INTO overallCounts (total, totalC, totalL, iic, il)
SELECT
  count(*) as total,
  sum(case when source=0 then 1 else 0 end) as totalC,
  sum(case when source=2 then 1 else 0 end) as totalL,
  case when source=0 then 1 else 0 end as iic,
  case when source=2 then 1 else 0 end as il
FROM widgets
WHERE joinId=1234
AND EXISTS (SELECT joinId FROM overallCounts WHERE joinId=1234)
ON CONFLICT REPLACE