MYSQL - 将冒号分隔的列值拆分为新列

Question

我有一张这样的表，

CREATE TABLE IF NOT EXISTS `cms` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `cms` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=3 ;


INSERT INTO `cms` (`id`, `cms`) VALUES
(1, 'cms:/o:freebsd:freebsd:2.1.7'),
(2, 'cms:/o:netbsd:netbsd:1.0');

我需要将cms列值拆分为四个附加列，因此必须用冒号分隔。

我需要输出类似的东西

需要查询此

Answer 1

试试这个。它有点脏，但它有效：

select source.*
, left(cms, FirstColon - 1) as CMS2
, mid(cms, FirstColon + 1, SecondColon - FirstColon -1) as Extension 
, mid(cms, SecondColon + 1, ThirdColon - SecondColon -1) as Product
, mid(cms, ThirdColon + 1, FourthColon - ThirdColon -1) as version
from (
    select a.*
    , locate(':', cms) 'FirstColon'
    , locate(':', cms, locate(':', cms) + 1) 'SecondColon'
    , locate(':', cms, locate(':', cms, locate(':', cms) + 1) + 1) 'ThirdColon'
    , locate(':', cms, locate(':', cms, locate(':', cms, locate(':', cms) + 1) + 1) + 1) 'FourthColon'
    from cms a
) source
;

但如果您安装了Microsoft Excel，则可以尝试使用Excel Text To Column工具。只需将原始数据导出为Microsoft Excel格式，然后使用该工具。