数据update更新查询

mysql 只有几百条数据的update 更新了10s一般是什么问题，我查询了锁表，机器的io都没发现问题

update 语句:2019-05-13 09:43:37.705 http-nio-8401-exec-3: DEBUG com.ybjdw.order.itemorder.dao.OrderRowMapper.updateByExampleSelective - ==> Preparing: update order_row SET end_date = ?, modify_date = ...

一、grant 普通数据用户，查询、插入、更新、删除数据库中所有表数据的权利。 grant select on testdb.* to common_user@'%' grant insert on testdb.* to common_user@'%' grant update on t

grant 创建、修改、删除 MySQL 数据表结构权限。 grant create on testdb.* to developer@'192.168.0.%'; grant alter on testdb.* to developer@'192.168.0.%'; grant drop on testdb.* to developer@'192.168.0.%'; MySQLg...

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数据管理DMS

数据管理服务DMS是一款支撑数据从生产到消费全生命周期的一站式数据管理平台。提供全域数据资产管理、数据治理、数据库设计开发、数据集成（数据迁移、实时同步、流批一体ETL）、数据开发和任务调度，以及数据消费服务等能力。

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