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frommysql指定
frommysql指定
MySQL#1093-您无法在FROM子句中指定目标表'giveaways'进行更新?mysql
我试过了: UPDATE giveaways SET winner = '1' WHERE ID = (SELECT MAX(ID) FROM giveaways) 但是它给出: #1093-您不能为FROM子句中的更新指定目标表'giveaways'
MySQL错误1093-无法在FROM子句中指定目标表进行更新
story_category我的数据库中有一个表,其中的条目已损坏。下一个查询返回损坏的条目: SELECT * FROM story_category WHERE category_id NOT IN ( SELECT DISTINCT category.id FROM category INNER JOIN story_category ON category_id=category.id...
mysql 中select now(); 是怎么执行的?没有指定FROM tablename?
mysql中 使用指令select now();就会获取当前时间日期。为什么没有from table,这种指令也能执行?不指定表的时候,应该如何理解select呢?
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云数据库RDS MySQL版
MySQL 是全球最受欢迎的开源数据库,阿里云MySQL版 通过深度的内核优化和独享实例提供稳定极致的数据库性能,同时灵活的部署架构及产品形态,可满足不同场景下的数据库需求。
了解详情
管理控制台
在线咨询
最新活动
MySQL2核4G 8.8元/月
数据库专场优惠
快速入门
帮助文档
快速入门
最佳实践
SaaS上云数据库
数据库客户案例合集
产品推荐
云数据库PolarDB
云原生数据仓库MySQL
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云数据库RDS MySQL版
MySQL 是全球最受欢迎的开源数据库,阿里云MySQL版 通过深度的内核优化和独享实例提供稳定极致的数据库性能,同时灵活的部署架构及产品形态,可满足不同场景下的数据库需求。
了解详情
管理控制台
在线咨询
最新活动
MySQL2核4G 8.8元/月
数据库专场优惠
快速入门
帮助文档
快速入门
最佳实践
SaaS上云数据库
数据库客户案例合集
产品推荐
云数据库PolarDB
云原生数据仓库MySQL