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添加前、后缀 concat，字符串替换 replace
添加前缀
UPDATE `table` SET field_name = concat("前缀", field_name);
添加后缀
UPDATE `table` SET field_name = concat(field_name, "后缀");
批量替换
UPDATE `table` SET field_name = REPLACE(intro, "before_replace", "after_replace");
为了让各位更加清楚我们看几个例子
添加前缀
update `ecs_goods` set goods_name=concat("新中式",goods_name) where cat_id =4;
添加后缀
update `ecs_goods` set goods_name=concat(goods_name,"新中式") where cat_id =4;
删除
update `ecs_goods`set goods_name=right(goods_name,length(goods_name)-1) where cat_id =4;
其中ecs_goods为表名，cat_id为分类字段名，goods_name为产品字段名