Question

嗨，我在使用mysql时遇到问题。

DELIMITER $$
DROP PROCEDURE IF EXISTS `insert_v5tag_count` $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `insert_v5tag_count`(IN call_tag_id INT,IN rel_tag_id VARCHAR(100),IN inp_object_id VARCHAR(100),IN level_num VARCHAR(100))
BEGIN

DECLARE done2 INT;
DECLARE i_tag_id2 INT;
DECLARE i_tag_id3 INT;
DECLARE ins_query2 VARCHAR(500);
DECLARE level_num2 INT;
DECLARE not_tag_id VARCHAR(500);

DECLARE tag_cur2 CURSOR FOR
SELECT tag_id FROM tagsV5_objects WHERE `object_type` = 6 AND `object_id` = inp_object_id AND `tag_id` != 0 AND `tag_id` != call_tag_id AND `tag_id` NOT IN(rel_tag_id);

DECLARE CONTINUE HANDLER FOR NOT FOUND SET done2=1;

OPEN tag_cur2;
  tag_loop2:LOOP
  FETCH tag_cur2 INTO i_tag_id2;

  IF done2=1 THEN
     LEAVE tag_loop2;
  END IF;

  SET ins_query2 = concat('insert into tagsV5_count SET tag_id = ',i_tag_id2,',level ="',level_num,'",object_type = 6,relationship_tag_id = "',call_tag_id,'",count = 1 ON DUPLICATE KEY UPDATE count = count + 1;');
  #    select ins_query;
  set @ins_query2=ins_query2;
  PREPARE ins_query2 from @ins_query2;
  EXECUTE ins_query2;


  SET level_num2 = level_num + 1;

  SET not_tag_id = CONCAT(rel_tag_id,',');

  SET not_tag_id = CONCAT(not_tag_id,i_tag_id2);

  CALL insert_v5tag_count(i_tag_id2,not_tag_id,inp_object_id,level_num2);



END LOOP;
CLOSE tag_cur2;



END $$

DELIMITER ;

SET @@session.max_sp_recursion_depth = 100;
CALL insert_v5tag_count(0,1,1509410,1);

基本原因是not_tag_id不想连接并传递给下一个函数，任何想法都会很棒。我现在只是把脸埋进键盘里。

感谢您的帮助。理查德

Answer 1

DELIMITER $$
DROP PROCEDURE IF EXISTS `fix_tag_relationship` $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `fix_tag_relationship`()
BEGIN

DECLARE i_tag_id INT;
DECLARE i_object_id INT;


DECLARE i_tag_id2 INT;
DECLARE i_object_id2 INT;

DECLARE ins_query2 VARCHAR(500);
DECLARE done INT;


DECLARE tag_cur CURSOR FOR
SELECT tag_id,object_id FROM tagsV5_objects WHERE object_type = 6 AND tag_id != 0;

DECLARE CONTINUE HANDLER FOR NOT FOUND SET done=1;

SET ins_query2 = concat('TRUNCATE debug;');
    #    select ins_query;
    set @ins_query2=ins_query2;
    PREPARE ins_query2 from @ins_query2;
    EXECUTE ins_query2;


OPEN tag_cur;
tag_loop:LOOP
  FETCH tag_cur INTO i_tag_id,i_object_id;

  IF done=1 THEN
    LEAVE tag_loop;
  END IF;

  # ok need to get all the photos with this tag and get the tags related to this one and store them at the appripriate level
  CALL insert_v5tag_count(i_tag_id,i_tag_id,i_object_id,1);


  /*SET ins_query=concat('insert into tagsV5_count SET tag_id = ',i_tag_id,',level =1,object_type = 6,relationship_tag_id = 0,count = 1 ON DUPLICATE KEY UPDATE count = count + 1;');
          #    select ins_query;
        set @ins_query=ins_query;
        PREPARE ins_query from @ins_query;
        EXECUTE ins_query;
        DROP PREPARE ins_query;*/


END LOOP;

CLOSE tag_cur;

END $$

DELIMITER ;


DELIMITER $$
DROP PROCEDURE IF EXISTS `insert_v5tag_count` $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `insert_v5tag_count`(IN call_tag_id INT,IN rel_tag_id VARCHAR(100),IN inp_object_id VARCHAR(100),IN level_num INT)
BEGIN

DECLARE done2 INT;
DECLARE i_tag_id2 INT;
DECLARE i_tag_id3 INT;
DECLARE ins_query2 VARCHAR(500);
DECLARE level_num2 INT;
DECLARE not_tag_id VARCHAR(500);

DECLARE row_num INT;
DECLARE number_of_rows INT;
DECLARE number_of_rows_child INT;
DECLARE i_number_children INT;

SET done2 = 0;
SET row_num = 0;
SET i_number_children = 0;

SET number_of_rows = (SELECT COUNT(1) FROM tagsV5_objects WHERE `object_type` = 6 AND `object_id` = inp_object_id AND `tag_id` != 0 AND `tag_id` != call_tag_id AND `tag_id` NOT IN(rel_tag_id));


IF number_of_rows > 0 THEN
  BEGIN
    DECLARE tag_cur2 CURSOR FOR
      SELECT tobj.tag_id,
        (SELECT COUNT(1) FROM tagsV5_objects WHERE `object_type` = 6 AND `object_id` = tobj.object_id
        AND tag_id != 0 AND tobj.tag_id != call_tag_id AND tag_id != tobj.tag_id )
       FROM tagsV5_objects tobj
        WHERE tobj.object_type = 6 AND tobj.object_id = inp_object_id AND tobj.tag_id != 0 AND tobj.tag_id != call_tag_id;

    DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done2 = 1;

       # SET ins_query2 = concat('insert into debug SET text_val = "',done2,'"');
        #    select ins_query;
       # set @ins_query2=ins_query2;
        #PREPARE ins_query2 from @ins_query2;
        #EXECUTE ins_query2;


  OPEN tag_cur2;
    WHILE NOT done2 DO
      FETCH tag_cur2 INTO i_tag_id2,i_number_children;

      /*SET ins_query2 = concat('insert into debug SET text_val = "SELECT tobj.tag_id,
         (SELECT COUNT(1) FROM tagsV5_objects WHERE object_type = 6 AND object_id = tobj.object_id
        AND tag_id != 0 AND tag_id != tobj.tag_id AND tag_id NOT IN(CONCAT(',rel_tag_id,',tobj.tag_id)) )
       FROM tagsV5_objects tobj
        WHERE tobj.object_type = 6 AND tobj.object_id = ',inp_object_id,' AND tobj.tag_id != 0 AND tobj.tag_id != ',call_tag_id,' AND tobj.tag_id NOT IN(',rel_tag_id,');"');
        #    select ins_query;
        set @ins_query2=ins_query2;
        PREPARE ins_query2 from @ins_query2;
        EXECUTE ins_query2;*/

      IF NOT done2 THEN
        SET row_num = row_num +1;

        SET ins_query2 = concat('insert into debug SET text_val = "',i_number_children,' - ',inp_object_id,' - ',(level_num+1),' - ',i_tag_id2,' - ',rel_tag_id,'"');
            set @ins_query2=ins_query2;
            PREPARE ins_query2 from @ins_query2;
            EXECUTE ins_query2;



        SET ins_query2 = concat('insert into tagsV5_count SET tag_id = ',i_tag_id2,',level ="',level_num,'",object_type = 6,relationship_tag_id = "',call_tag_id,'",count = 1 ON DUPLICATE KEY UPDATE count = count + 1;');
        set @ins_query2=ins_query2;
        PREPARE ins_query2 from @ins_query2;
        EXECUTE ins_query2;

#it's here that I'm having trouble, it doesn't seem to want to go through.
        if STRCMP(REPLACE(rel_tag_id,i_tag_id2,''),rel_tag_id) = 1 THEN

          #do we need to do a check here for if has children?

          if i_number_children > 0 THEN

            SET ins_query2 = concat('insert into debug SET text_val = "second call"');
            set @ins_query2=ins_query2;
            PREPARE ins_query2 from @ins_query2;
            EXECUTE ins_query2;

            CALL insert_v5tag_count(i_tag_id2,CONCAT(rel_tag_id,',',i_tag_id2),inp_object_id,(level_num+1));
          END IF;
        END IF;
      END IF;
    END WHILE;
    CLOSE tag_cur2;
    END;
END IF;

END $$
DELIMITER ;

DELIMITER $$

DROP FUNCTION IF EXISTS get_tag_count $$

CREATE FUNCTION get_tag_count(inp_object_id varchar(255),call_tag_id varchar(255),rel_tag_id2 varchar(255)) RETURNS int
BEGIN
  DECLARE ins_query2 VARCHAR(500);
  DECLARE v_return_val INT;
  DECLARE CONTINUE HANDLER FOR NOT FOUND SET v_return_val = -1;


  SELECT COUNT(1) INTO v_return_val FROM tagsV5_objects WHERE `object_type` = 6 AND `object_id` = inp_object_id AND `tag_id` != 0 AND `tag_id` != call_tag_id AND `tag_id` NOT IN(rel_tag_id2);

  if v_return_val = '0' THEN
    SET v_return_val = 0;
  END IF;


  RETURN v_return_val;
END $$

DELIMITER ;


SET @@SESSION.max_sp_recursion_depth=30;
CALL fix_tag_relationship();

mysql存储过程递归不传递变量

1 个答案: