COLLATION 'utf8_unicode_ci' is not valid for CHARACTER SET 'utf8mb4'
原因：數據庫編碼不一致 查看字符集： 解決辦法：修改配置文件(追加以下內容) 修改后重新查看字符集 show variables like 'character\_set\_%'; 重啟服務重新測試 ...
原文：SQLSTATE[42000]: Syntax error or access violation: 1253 COLLATION 'utf8mb4_unicode_ci' is not valid for CHARACTER SET 'binary'
SQLSTATE : Syntax error or access violation: COLLATION utf mb unicode ci is not valid for CHARACTER SET binary 對數據表更改，然后執行數據遷移命令php artisan migrate，之后報錯如下： 解決辦法： 參考：https: www.hellojava.com a .html ...
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