MySQL建好表后, 再给某字段添加唯一约束

发表于 2019-12-10 09:09:07 (UTC+0)

指令如下

ALTER TABLE `表名` ADD unique(`字段名`);

基本文件流程错误 SQL 调试

请求信息 : 2025-08-21 22:24:13 HTTP/2.0 GET : https://blog.class4ever.com/1563.html
运行时间 : 0.110576s [ 吞吐率：9.04req/s ] 内存消耗：3,422.36kb 文件加载：123
查询信息 : 2 queries
缓存信息 : 0 reads,0 writes

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