设置数据库字符集的相关内容

阿里云文档 2025-05-28

修改数据实例字符集及排序规则参数character_set_server和collation_server

在数据库迁移、数据库合并时，如果遇到数据库字符集和字符排序规则不兼容的情况，或者配套的应用程序有特殊的字符集和字符排序规则要求，您可以通过调整实例的character_set_server参数和collation_server参数，来修改字符集和字符排序规则，以满足实际需求。

阿里云文档 2025-02-27

如何秒级修改列字符集

在MySQL中，当用户指定列的字符集为UTF-8时，会默认使用utf8mb3字符集，该字符集最大使用3个字节来存储字符。如果用户需要存储表情（emoji）等信息时，则需要将列字符集修改为utf8mb4。一般情况下，修改列字符集需要重建表，耗时较长，且对业务影响较大。PolarDB MySQL版支持秒级修改列字符集，使用该功能您可以快速地修改字符集，且对业务无感。

阿里云文档 2023-09-03

如何使用PolarDBPostgreSQL的字符集函数_云原生数据库PolarDB PostgreSQL版（兼容Oracle）_云原生数据库 PolarDB(PolarDB)

本文介绍了字符集函数的语法、参数以及示例等内容。

问答 2023-04-04 来自：开发者社区

设置数据库中的字符集问题

上面的sql语句中 collate 'utf8_general_ci'是什么意思？

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更新时间 2024-03-07 15:56:37

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