场景业务需要,优惠券列表要求按类型进行排序,但是,类型并不是顺序的,即order by是解决不了问题的建表 CREATE TABLE `custom_sort` ( `id` int(20)
如何更改行的顺序以便按custom_field对行进行排序?例如,我得到了id为asc的表,并希望将行按desc顺序排列。我需要它来避免在mysql查询中使用'order by id desc‘来优化查询速度。我试过了: insert table_with_ordered_rows() select * from table_with_not_ordered_rows order by id desc; 但它只是复制具有...
I want to fetch the record order by type in custom order. So I wrote the query like SELECT * FROM `business` ORDER BY FIELD (type, 'type3', 'type2', 'type10') but what happen is other types comes up in order and the given order becomes at last. The given order should be at...
INSERT INTO `custom_sort` VALUES (5, '王五', 5); INSERT INTO `custom_sort` VALUES (6, '赵六', 0); INSERT INTO `custom_sort` VALUES (7, '孙七', 7); 1. 2. 3. 4. 5. 6. 7. 表结构数据 解决方案 field函数 SELECT * FROM `custom_sort` ORDER BY FIELd(type,1,3) desc,type...
ORDER BY form_fields.id ASC SEPARATOR '|') AS field_labels, GROUP_CONCAT(COALESCE(submission_fields.field_id, '') ORDER BY form_fields.id ASC SEPARATOR '|') AS field_ids, GROUP_CONCAT(COALESCE(submission_fields.field_value, '') ORDER BY form_fields.id ASC SEPARATOR '|') ...
MySQL FIELD（）语法只适用于同一个表。这不是很正确 MySQL FIELD（）语法仅适用于查询表 要在查询...
创建一个用户custom在特定客户端it363.com登录,可访问特定数据库fangchandb mysql >grant select, insert, update, delete, create,drop on fangchandb.* to custom@ it363.com identified by ‘ passwd’ 重命名表: mysql > alter table t1 rename t2; ...
mysql >grant select, insert, update, delete, create,drop on fangchandb.* to custom@沧州网站建设,沧州网络公司,沧州网站制作,沧州网络推广,沧州做网站公司,沧州手机网站-沧州佳恩网络科技有限公司identified by ‘ passwd’ 重命名表: mysql > alter table t1 rename t2; ...
24 field 函数 自定义排序 ORACLE可以借助DECODE函数,自定义顺序排序: DECODE(value,if 条件 1,then 值1,if 条件2,then 值 2,...,else 其他值) 例子: mysql中自定义排序如下 ORDER BY FIELD(b.TYPE_NAME, '普通股票型', '偏股混合型', '短期纯债型', '中长期纯债型', '可转债型', '偏债混合型...
创建一个用户custom在特定客户端it363.com登录,可访问特定数据库fangchandb mysql >grant select, insert, update, delete, create,drop on fangchandb.* to custom@ it363.com identified by ‘ passwd’ 重命名表: mysql > alter table t1 rename t2; ...