mysql用concat更新REPLACE

Question

我的表保存了相同的ID：123,9901,888,99

我需要在此字段中更改一些ID

我使用我的sql：讓9901更改為2001

UPDATE `TALBE_` SET id_group = REPLACE (id_group, '9901', '2001');

那是工作

但是，我將99更改為100

UPDATE `TALBE_` SET id_group = REPLACE (id_group, '99', '100');

我的SQL Fidle已更改為

123，10001，888，100

如何只更改99-> 100，不更改9901？

我需要使用concat嗎？

但是我測試一段時間仍然不能做到這一點

Answer 1

您可以使用例如

UPDATE `TALBE_` SET id_group = 
    trim(',' from REPLACE(concat(',', id_group, ','), ',99,', ',100,')); 

Answer 2

她的版本號尋求替換

您必須插入2次搜索值

SELECT CONCAT_WS (',',
      SUBSTRING_INDEX(id_group, ',', FIND_IN_SET('888',id_group)-1)
      ,'100',
      SUBSTRING_INDEX(id_group, ',', --1* (LENGTH(REGEXP_REPLACE(id_group,'[0-9]','')) -(FIND_IN_SET('888',id_group)-1)))
      );

樣品

MariaDB [(none)]> SELECT CONCAT_WS (',',
    ->       SUBSTRING_INDEX('123,9901,888,99', ',', FIND_IN_SET('888','123,9901,888,99')-1)
    ->       ,'100',
    ->       SUBSTRING_INDEX('123,9901,888,99', ',', --1* (LENGTH(REGEXP_REPLACE('123,9901,888,99','[0-9]','')) -(FIND_IN_SET('888','123,9901,888,99')-1)))
    ->       );
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| CONCAT_WS (',',
      SUBSTRING_INDEX('123,9901,888,99', ',', FIND_IN_SET('888','123,9901,888,99')-1)
      ,'100',
      SUBSTRING_INDEX('123,9901,888,99', ',', --1* (LENGTH(REGEXP_REPLACE('123,9901,888,99','[0-9]','')) -(FIND_IN_SET('888','123,9901,888,9 |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| 123,9901,100,123                                                                                                                                                                                                                                                 |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

MariaDB [(none)]>