diff --git a/RuoYi-Vue/ruoyi-generator/src/main/java/com/ruoyi/generator/service/front/AiDatabaseSchemaValidator.java b/RuoYi-Vue/ruoyi-generator/src/main/java/com/ruoyi/generator/service/front/AiDatabaseSchemaValidator.java
index 4500805..8ccaadf 100644
--- a/RuoYi-Vue/ruoyi-generator/src/main/java/com/ruoyi/generator/service/front/AiDatabaseSchemaValidator.java
+++ b/RuoYi-Vue/ruoyi-generator/src/main/java/com/ruoyi/generator/service/front/AiDatabaseSchemaValidator.java
@@ -52,7 +52,7 @@ public class AiDatabaseSchemaValidator
         }
         int precision = Integer.parseInt(matcher.group(1));
         int scale = Integer.parseInt(matcher.group(2));
-        return scale <= precision;
+        return precision >= 1 && precision <= 65 && scale >= 0 && scale <= 30 && scale <= precision;
     }
 
     public boolean isSafeSql(String sql)
diff --git a/RuoYi-Vue/ruoyi-generator/src/test/java/com/ruoyi/generator/service/front/AiDatabaseSchemaValidatorTest.java b/RuoYi-Vue/ruoyi-generator/src/test/java/com/ruoyi/generator/service/front/AiDatabaseSchemaValidatorTest.java
index 1effb11..d12f873 100644
--- a/RuoYi-Vue/ruoyi-generator/src/test/java/com/ruoyi/generator/service/front/AiDatabaseSchemaValidatorTest.java
+++ b/RuoYi-Vue/ruoyi-generator/src/test/java/com/ruoyi/generator/service/front/AiDatabaseSchemaValidatorTest.java
@@ -18,6 +18,10 @@ public class AiDatabaseSchemaValidatorTest
         assertTrue(validator.isAllowedColumnType("varchar(100)"));
         assertTrue(validator.isAllowedColumnType("decimal(10,2)"));
         assertTrue(validator.isAllowedColumnType("decimal(10,0)"));
+        assertTrue(validator.isAllowedColumnType("decimal(65,30)"));
+        assertFalse(validator.isAllowedColumnType("decimal(66,0)"));
+        assertFalse(validator.isAllowedColumnType("decimal(65,31)"));
+        assertFalse(validator.isAllowedColumnType("decimal(99,99)"));
         assertFalse(validator.isAllowedColumnType("decimal(5,9)"));
         assertFalse(validator.isAllowedColumnType("json"));
         assertFalse(validator.isSafeSql("drop table sys_user"));