昨晚遷移幾個網站的數據庫，出現錯誤，本以為都是mysql5.5，應該不會有什么問題，導入的時候都在報錯

使用命令導入報錯如下(導入命令參考https://xiaohost.com/1202.html)：

ERROR 1064 (42000) at line 28: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'TYPE=MyISAM AUTO_INCREMENT=1' at line 9

使用命令強行導入：

mysql -u **** -p ***** < ./****.sql -f

還是提示錯誤如下

ERROR 1273 (HY000) at line 29: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1273 (HY000) at line 45: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1273 (HY000) at line 75: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1273 (HY000) at line 99: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1146 (42S02) at line 112: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 245: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 247: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 272: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 274: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 295: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 297: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 323: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 394: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 402: Table '**********.wp_options' doesn't exist

ERROR 1146 (42S02) at line 415: Table '**********.wp_options' doesn't exist

ERROR 1273 (HY000) at line 429: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1146 (42S02) at line 443: Table '**********.wp_postmeta' doesn't exist

ERROR 1146 (42S02) at line 628: Table '**********.wp_postmeta' doesn't exist

ERROR 1273 (HY000) at line 695: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1146 (42S02) at line 730: Table '**********.wp_posts' doesn't exist

ERROR 1146 (42S02) at line 819: Table '**********.wp_posts' doesn't exist

ERROR 1273 (HY000) at line 850: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1273 (HY000) at line 866: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1146 (42S02) at line 881: Table '**********.wp_terms' doesn't exist

ERROR 1273 (HY000) at line 1007: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1146 (42S02) at line 1023: Table '**********.wp_term_taxonomy' doesn't exist

ERROR 1273 (HY000) at line 1119: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1146 (42S02) at line 1133: Table '**********.wp_usermeta' doesn't exist

ERROR 1273 (HY000) at line 1189: Unknown collation: 'utf8mb4_unicode_520_ci'

ERROR 1146 (42S02) at line 1210: Table '**********.wp_users' doesn't exist

解決辦法:使用notepad++ 打開導出的****.sql文件(類似工具也可以，注意保持utf-8編碼)

將

utf8mb4_unicode_520_ci

替換為

utf8_general_ci

將

utf8mb4_unicode_ci

替換為

utf8_general_ci

將

utf8mb4

替換為

utf-8

注意替換順序不能錯，從大到小，替換后導入就沒問題了，產生這個錯誤的原因主要為mysql版本問題，使用的編碼排序設置不同導致的

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