数据库字段乱码的相关内容

阿里云文档 2025-06-30

删除不同约束下字段的不兼容场景

本文为您介绍 MySQL 数据库和 OceanBase 数据库 MySQL 租户对于删除不同约束下字段的不兼容场景。

阿里云文档 2025-06-30

修改没有约束的列的字段长度的不兼容场景(MySQL)

本文为您介绍 MySQL 数据库和 OceanBase 数据库 MySQL 租户对于修改没有约束的列的字段长度的不兼容场景。

阿里云文档 2025-04-18

敏感字段加密（rds_encdb）

RDS PostgreSQL提供了rds_encdb插件，用于对查询结果集的敏感列进行加密。同时，通过对数据库账户权限进行设置，相关账户在访问敏感列信息时，仅能获得密文格式的查询结果。

阿里云文档 2025-03-14

在MySQL生态中，修改字段的类型需要使用COPY算法对全表数据进行重建，且重建过程中目标表只能查询数据，不能并发的写入数据。更糟糕的是，COPY算法采用单线程进行全表重建，其效率较低。因此，修改字段类型操作一直是MySQL生态下的痛点问题。为了解决这一问题，PolarDB MySQL版支持秒级修改字段（Instant Modify Column）功能，在修改字段类型时，只需变更表定义信息，无需修...

阿里云文档 2024-11-29

RDS PostgreSQL 秒级加字段DDL最佳实践

本文介绍如何在RDS PostgreSQL中通过设置锁等待超时和自动化重试DDL操作，有效解决在执行添加字段的DDL操作时所遇到的锁阻塞问题，从而减少对业务的影响。

问答 2023-09-26 来自：开发者社区

OceanBase数据库中这个是什么问题？字段乱码，其他的都没问题。

"OceanBase数据库中这个是什么问题？字段乱码，其他的都没问题。https://ask.oceanbase.com/t/topic/35604749"

问答 2016-06-13 来自：开发者社区

往安卓自带数据库里插入中文字段在DOC里查看变成乱码

最下面那行第四列那里出现乱码本来是往里面插入了“星期二”这个中文的结果用adb进去一看却是乱码难道是安卓的数据库不支持中文吗？还是说版本问题还是说有别的原因

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更新时间 2024-03-21 11:30:58

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