初始代码

yunzhupaas-admin/src/main/resources/mapper/extend/BigDataMapper.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.yunzhupaas.mapper.BigDataMapper">
+
+    <select id="maxCode" resultType="Integer">
+        SELECT MAX(F_EN_CODE) FROM ext_big_data
+    </select>
+
+</mapper>