mysql语句SELECT INSERT INTO提示

Question

My statement is correct missing one Column, but it does not insert the hashtag from table trending_topics into the rss table based on order.

Any adjust can help me with my statement.

INSERT INTO rss (id,hashtag,total)
SELECT
  hashtag,
  SUM(count) AS total
FROM `trending_topics`
WHERE lang=0
  AND hashtag !=     ''
  AND date >= date_sub(left(now(), 10), interval 1 day)
GROUP BY hashtag order by total desc;;

My insert into table ( rss ) looks like:

  id  hashtag  total
  1    null    55
  2    null    22

Answer 1

If the datatypes and your example sql etc. are correct (and there is a hashtag returned by the select) then the following should work ( remove the id in the insert into statement)

INSERT INTO rss (hashtag,total)
SELECT
  hashtag,
  SUM(count) AS total
FROM `trending_topics`
WHERE lang=0
  AND hashtag !=     ''
  AND date >= date_sub(left(now(), 10), interval 1 day)
GROUP BY hashtag order by total desc;

Answer 2

The number of inserted fields should match the number of fields specified at INSERT INTO table_name (field list)

INSERT INTO rss (hashtag,total)
SELECT
  hashtag,
  SUM(count) AS total