COLLATE utf8mb4_0900_ai_ci

COLLATE utf8mb4_0900_ai_ci是一种字符集排序规则。它是在创建数据库或表时用于指定字符集和排序规则的一部分。在引用中，CREATE DATABASE语句使用了DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci来设置数据库的默认字符集和排序规则。在引用中，CREATE TABLE语句中的CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci用于设置表中字段的字符集和排序规则。而在引用中，`c_name`和`jp`字段的CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci用于设置这两个字段的字符集和排序规则。所以，COLLATE utf8mb4_0900_ai_ci是用于指定字符集排序规则的一种规范。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *1* *2* [2020-10-10](https://blog.csdn.net/CarloPan/article/details/108998386)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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