MYSQL数据库mysql trim函数用法举例
《MYSQL数据库mysql trim函数用法举例》要点: mysql中去除左空格函数: returns the string str with leading space characters removed. 例子: -> 'barbar' this function is multi-byte safe. mysql中去除右空格函数: returns the string str with trailing space characters removed. 例3: -> 'barbar' this function is multi-byte safe.MYSQL入门 trim函数可以过滤指定的字符串: returns the string str with all remstr prefixes or suffixes removed. if none of the specifiers both,leading,or trailing is given,both is assumed. remstr is optional and,if not specified,spaces are removed.MYSQL入门 mysql trim函数的例子: mysql> select trim(' bar?? '); //默认删除前后空格 mysql> update table set `field`=trim(trailing ',' from `field`) where where `field` like '%,'; 编程之家PHP培训学院每天发布《MYSQL数据库mysql trim函数用法举例》等实战技能,PHP、MYSQL、LINUX、APP、JS,CSS全面培养人才。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |