如何在 Mysql 存储过程中解析 PHP Searilize 数据并循环它

Question

我在 Mysql Column 中有以下数据（以序列化形式存储所有数据 - 用逗号分隔到列中），我想在 Mysql 存储过程中获取/获取此列数据，并希望循环每个数据并插入另一个 trans表。

所以如果我的数据如下所示，那么我想在 trans 表中插入 7 条记录。

{"FormBuilderId":"5","vAnswer":"Develeop"},
{"FormBuilderId":"15","vAnswer":"Search Engine"},
{"FormBuilderId":"13","vAnswer":"10-15"},
{"FormBuilderId":"6","vAnswer":"Tester entered"},
{"FormBuilderId":"1","vAnswer":"Female"},
{"FormBuilderId":"14","vAnswer":"Moon.jpg"},
{"FormBuilderId":"12","vAnswer":"TV,dancing and modeling"}

我的表结构和数据如下表：

CREATE TABLE IF NOT EXISTS `idea_history` (
    `iIdeaHistoryId` int(11) NOT NULL AUTO_INCREMENT,
    `iApplicationId` tinyint(11) unsigned DEFAULT '0',
    `tAnswerData` text COMMENT 'all answer data store here in json format',
    `dAddedDate` datetime NOT NULL,
    PRIMARY KEY (`iIdeaHistoryId`),
    KEY `iApplicationId` (`iApplicationId`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COMMENT='history comes here' AUTO_INCREMENT=57 ;

--
-- Dumping data for table `idea_history`
--

INSERT INTO idea_history (
  iIdeaHistoryId,
  iApplicationId,
  tAnswerData,
  dAddedDate
) 
VALUES
  (
    53,
    2,
    '{"FormBuilderId" : "2","vAnswer":"Environmental Group"},{"FormBuilderId" : "11","vAnswer":"Satelite"},{"FormBuilderId" : "3","vAnswer":"HB"},{"FormBuilderId" : "4","vAnswer":"Dev"},{"FormBuilderId" : "7","vAnswer":"HB"},{"FormBuilderId" : "8","vAnswer":"Balaji Satellite"},{"FormBuilderId" : "10","vAnswer":""}',
    '2014-07-05 19:20:56'
  ),
  (
    54,
    1,
    '{"FormBuilderId":"5","vAnswer":"Hello krishna|kanth double"},{"FormBuilderId":"15","vAnswer":"Website"},{"FormBuilderId":"6","vAnswer":"need to check"},{"FormBuilderId":"13","vAnswer":"20-25"}',
    '2014-07-05 19:20:56'
  ),
  (
    55,
    2,
    '{"FormBuilderId":"11","vAnswer":"comapnay"},{"FormBuilderId":"8","vAnswer":"here am|chw "},{"FormBuilderId" : "10","vAnswer":""},{"FormBuilderId":"9","vAnswer":"Business"}',
    '2014-07-05 19:20:56'
  ) ;

我将在存储过程中传递iIdeaHistoryId，它会获取tAnswerData 字段的值并将该值分割并插入到另一个trans 表中。

您能否指导我在存储过程中需要更改的内容？

Answer 1

你可以这样做

SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(your_variable,'{"',-1),'":"',1) INTO arg_1;
SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(your_variable,'":"',-2),'","',1) INTO arg_2;
SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(your_variable,'","',-1),'":"',1) INTO arg_3;
SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(your_variable,'":"',-1),'"}',1) INTO arg_4;

INSERT INTO trans VALUES (arg_1,arg_2,arg_3,arg_4); 

或者如果您想在存储过程中执行此操作，请在此处添加您的数据

    DELIMITER $$
    DROP PROCEDURE IF EXISTS trans$$
    CREATE PROCEDURE trans()
    BEGIN
    DECLARE arg_1,arg_2,arg_3,arg_4 VARCHAR(100);
    DECLARE finished INTEGER DEFAULT 0;
    DECLARE cursor_name CURSOR FOR YOUR_SELECT_statement;

    DECLARE CONTINUE HANDLER FOR NOT FOUND SET finished = 1;

    OPEN cursor_name;
      my_loop: LOOP
        FETCH cursor_name INTO your_variable;
        IF finished = 1 THEN 
          LEAVE my_loop;
        END IF;
          SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(your_variable,'{"',-1),'":"',1) 
          INTO arg_1 FROM your_table;
          SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(your_variable,'":"',-2),'","',1) 
          INTO arg_2 FROM your_table;
          SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(your_variable,'","',-1),'":"',1) 
          INTO arg_3 FROM your_table;
          SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(your_variable,'":"',-1),'"}',1) 
          INTO arg_4 FROM your_table;
          INSERT INTO trans VALUES (arg_1,arg_2,arg_3,arg_4); 
    END LOOP my_loop;
    CLOSE cursor_name;

    END$$

    DELIMITER ;

一栏你用这个

DELIMITER $$
    DROP PROCEDURE IF EXISTS trans$$
    CREATE PROCEDURE trans(IN in_iIdeaHistoryId INT)
BEGIN
    DECLARE arg_1 VARCHAR(100);
      SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(REPLACE(`tAnswerData`,' ',''),'{"',-1),'":"',1) 
          INTO arg_1 FROM `idea_history` WHERE iIdeaHistoryId=in_iIdeaHistoryId;
          INSERT INTO trans VALUES (arg_1); 
    END$$
DELIMITER ;

然后这样称呼它

CALL `trans`(53);

Answer 2

这看起来像 JSON。使用 php 函数 json_decode() 将 json 数据存储到一个数组中，然后您可以在该数组上使用 foreach 循环。在循环内，您可以放置​​条件，当它满足时，您可以使用插入查询将其存储在数据库中。

这对你有帮助吗？

如果您可以进一步解释您正在尝试做什么以及您的状况如何，那么我可能会给您一个更好的答案。