<?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="pwc.taxtech.atms.dao.AssetDetailGroupMapper"> <select id="countAssetByType" resultType="java.lang.Long"> select count(1) from asset_detail_group where asset_group_type = #{assetGroupType} </select> </mapper>