Simple query but it doesn't work

Question

hi, i have 2 schema, that is user1 and user2
i run this query on user1 but it doesn't give any result, but if i run on user2 it does return results. any idea why this happen?
     SELECT
          STORE_ID,
          NVL(STORE_NAME,'-'),
l.INSUPD_TIME
FROM user2.store s, user2.LOG l
     WHERE (s.rowid = l.row_id)
     AND insupd_time > (SELECT MAX(loading_time)
FROM user2.LOG
WHERE table_name = UPPER('Store'));

Answer 1

hi,
in the query u did not specify any table that is present in the schema user 1
try this
SELECT s.STORE_ID, NVL(s.STORE_NAME,'-'),i.INSUPD_TIME
FROM user2.store s, user2.LOG i
WHERE (s.rowid = i.row_id)
AND s.insupd_time > (SELECT MAX(loading_time)
FROM user2.LOG
WHERE table_name = UPPER('Store')
Trinath Somanchi,
Hyderabad.