优化SQL语句，以提高查询速度

liurunyu

2025-07-29 2132a4073fdd350ddce3fc5f999b305fffae1b01

 pipIrr-platform/pipIrr-global/src/main/resources/mapper/AreaCode2023Mapper.xml

New file
@@ -0,0 +1,115 @@
<?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.dy.pipIrrGlobal.daoBa.AreaCode2023Mapper">
  <resultMap id="BaseResultMap" type="com.dy.pipIrrGlobal.pojoBa.AreaCode2023">
    <!--@mbg.generated-->
    <!--@Table area_code_2023-->
    <id column="code" jdbcType="BIGINT" property="code" />
    <result column="name" jdbcType="VARCHAR" property="name" />
    <result column="level" jdbcType="BOOLEAN" property="level" />
    <result column="pcode" jdbcType="BIGINT" property="pcode" />
    <result column="category" jdbcType="INTEGER" property="category" />
  </resultMap>
  <sql id="Base_Column_List">
    <!--@mbg.generated-->
    code, `name`, `level`, pcode, category
  </sql>
  <select id="selectByPrimaryKey" parameterType="java.lang.Long" resultMap="BaseResultMap">
    <!--@mbg.generated-->
    select 
    <include refid="Base_Column_List" />
    from area_code_2023
    where code = #{code,jdbcType=BIGINT}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Long">
    <!--@mbg.generated-->
    delete from area_code_2023
    where code = #{code,jdbcType=BIGINT}
  </delete>
  <insert id="insert" parameterType="com.dy.pipIrrGlobal.pojoBa.AreaCode2023">
    <!--@mbg.generated-->
    insert into area_code_2023 (code, `name`, `level`, 
      pcode, category)
    values (#{code,jdbcType=BIGINT}, #{name,jdbcType=VARCHAR}, #{level,jdbcType=BOOLEAN}, 
      #{pcode,jdbcType=BIGINT}, #{category,jdbcType=INTEGER})
  </insert>
  <insert id="insertSelective" parameterType="com.dy.pipIrrGlobal.pojoBa.AreaCode2023">
    <!--@mbg.generated-->
    insert into area_code_2023
    <trim prefix="(" suffix=")" suffixOverrides=",">
      <if test="code != null">
        code,
      </if>
      <if test="name != null">
        `name`,
      </if>
      <if test="level != null">
        `level`,
      </if>
      <if test="pcode != null">
        pcode,
      </if>
      <if test="category != null">
        category,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides=",">
      <if test="code != null">
        #{code,jdbcType=BIGINT},
      </if>
      <if test="name != null">
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="level != null">
        #{level,jdbcType=BOOLEAN},
      </if>
      <if test="pcode != null">
        #{pcode,jdbcType=BIGINT},
      </if>
      <if test="category != null">
        #{category,jdbcType=INTEGER},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.dy.pipIrrGlobal.pojoBa.AreaCode2023">
    <!--@mbg.generated-->
    update area_code_2023
    <set>
      <if test="name != null">
        `name` = #{name,jdbcType=VARCHAR},
      </if>
      <if test="level != null">
        `level` = #{level,jdbcType=BOOLEAN},
      </if>
      <if test="pcode != null">
        pcode = #{pcode,jdbcType=BIGINT},
      </if>
      <if test="category != null">
        category = #{category,jdbcType=INTEGER},
      </if>
    </set>
    where code = #{code,jdbcType=BIGINT}
  </update>
  <update id="updateByPrimaryKey" parameterType="com.dy.pipIrrGlobal.pojoBa.AreaCode2023">
    <!--@mbg.generated-->
    update area_code_2023
    set `name` = #{name,jdbcType=VARCHAR},
      `level` = #{level,jdbcType=BOOLEAN},
      pcode = #{pcode,jdbcType=BIGINT},
      category = #{category,jdbcType=INTEGER}
    where code = #{code,jdbcType=BIGINT}
  </update>

  <!--根据区划代码查询指定级别行政区划-->
  <select id="getDistrictS" resultType="com.dy.pipIrrGlobal.voBa.VoDistrict">
    SELECT
        name,
        CASE
            WHEN level = 4 THEN SUBSTRING(code,7,3)
            WHEN level = 5 THEN SUBSTRING(code,10,3)
        END AS code,
        level
    FROM area_code_2023
    WHERE code LIKE CONCAT('%', #{aredCode}, '%') AND level = #{level}
  </select>
</mapper>