23 lines
860 B
SQL
23 lines
860 B
SQL
-- 修复数据库乱码问题
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-- 1. 首先备份当前数据
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CREATE TABLE IF NOT EXISTS user_backup_20260128 AS SELECT * FROM user;
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-- 2. 修改数据库字符集为 utf8mb4
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ALTER DATABASE peidu CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci;
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-- 3. 修改 user 表字符集
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ALTER TABLE user CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
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-- 4. 如果数据已经是乱码，需要手动修复
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-- 查看当前乱码的用户
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SELECT id, username, real_name, phone FROM user WHERE id IN (1, 2);
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-- 5. 手动更新用户数据（示例）
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-- 请根据实际情况修改这些值
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UPDATE user SET real_name = '张小明' WHERE id = 1 AND real_name LIKE '%<25>%';
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UPDATE user SET real_name = '李四' WHERE id = 2 AND real_name LIKE '%<25>%';
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-- 6. 验证修复结果
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SELECT id, username, real_name, phone, role FROM user WHERE id IN (1, 2);
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