Question

在我添加此INSERT行之前，此工作正常。

INSERT INTO related_new(input_id,related_id, post_name, tag_count)

我知道我在where子句中使用了一个字符串，但是当没有添加INSERT行时，它（貌似）是如何工作的。

FYI。将INSERT行放入此proc时发生的错误是：

Truncated incorrect DOUBLE value: '1,10350

这个where子句是一个测试。

   DELIMITER $$
  DROP PROCEDURE IF EXISTS cursor_ROWPERROW $$
  CREATE PROCEDURE cursor_ROWPERROW()
  BEGIN
    DECLARE cursor_ID INT;
    DECLARE cursor_VAL CHAR(250);
    DECLARE done INT DEFAULT FALSE;
    DECLARE cursor_i CURSOR FOR select ID, tag_hash as VAL from wordpress.related_questions where tag_hash = '1,10350' limit 3;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
    OPEN cursor_i;
    read_loop: LOOP
      FETCH cursor_i INTO cursor_ID, cursor_VAL;
      IF done THEN
        LEAVE read_loop;
      END IF;
      INSERT INTO related_new(input_id,related_id, post_name, tag_count)

  SELECT cursor_ID, wp_posts.id, wp_posts.post_name, count(distinct tt.term_taxonomy_id) as tag_count
  FROM wp_posts
  INNER JOIN wp_term_relationships tr ON (wp_posts.ID = tr.object_id) 
  INNER JOIN wp_term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id) 
  WHERE tt.term_id IN (cursor_VAL) 
  GROUP BY wp_posts.ID ORDER BY tag_count desc, wp_posts.post_date DESC
  limit 3;
    END LOOP;
    CLOSE cursor_i;
  END$$
  DELIMITER ;

为什么添加插入时这个mysql存储过程不起作用

0 个答案: