diff --git a/docs/database/MySQL.md b/docs/database/MySQL.md
index 8e74cb89b61a6877e73bc5690e70286ca6a5ae47..8fd54b7d49008a8e410d3651f1e0d19b2cc2fad4 100644
--- a/docs/database/MySQL.md
+++ b/docs/database/MySQL.md
@@ -199,7 +199,7 @@ select sql_no_cache count(*) from usr;
 | REPEATABLE-READ  |  ×   |     ×      |   √    |
 |   SERIALIZABLE   |  ×   |     ×      |   ×    |
 
-MySQL InnoDB 存储引擎的默认支持的隔离级别是 **REPEATABLE-READ（可重读）**。我们可以通过`SELECT @@tx_isolation;`命令来查看
+MySQL InnoDB 存储引擎的默认支持的隔离级别是 **REPEATABLE-READ（可重读）**。我们可以通过`SELECT @@tx_isolation;`命令来查看，MySQL 8.0 该命令改为`SELECT @@transaction_isolation;`
 
 ```sql
 mysql> SELECT @@tx_isolation;
diff --git a/docs/system-design/framework/spring/spring-transaction.md b/docs/system-design/framework/spring/spring-transaction.md
index 6eafb10bfc8b50e6904a988312c40ba48d1480c8..380993371d553f857a7064548df951c9b7237c8a 100644
--- a/docs/system-design/framework/spring/spring-transaction.md
+++ b/docs/system-design/framework/spring/spring-transaction.md
@@ -484,7 +484,7 @@ public enum Isolation {
 
 因为平时使用 MySQL 数据库比较多，这里再多提一嘴！
 
-MySQL InnoDB 存储引擎的默认支持的隔离级别是 **`REPEATABLE-READ`（可重读）**。我们可以通过`SELECT @@tx_isolation;`命令来查看，如下：
+MySQL InnoDB 存储引擎的默认支持的隔离级别是 **`REPEATABLE-READ`（可重读）**。我们可以通过`SELECT @@tx_isolation;`命令来查看，MySQL 8.0 该命令改为`SELECT @@transaction_isolation;`：
 
 ```
 mysql> SELECT @@tx_isolation;