SQL条件查询优化

SQL条件查询优化
有的时候不需要关联查询，解耦，可以用in，数据量大的用exist关键字

<select id="queryBySearch" resultMap="BaseResultMap">
  SELECT
      <include refid="Base_Column_List" />
  FROM derictinvest_counterparty
  WHERE 1=1
  <if test="cpName != null and cpName.length > 0 ">
      AND cp_id  IN (SELECT id FROM counterparty WHERE `name` LIKE concat(concat('%',#{cpName},'%')))
  </if>
  <if test="diEpName != null and diEpName.length > 0 ">
      AND di_ep_id  IN (SELECT id FROM derictinvest_enterprise WHERE `name` LIKE concat(concat('%',#{diEpName},'%')))
  </if>
  <if test="investNo != null and investNo.length > 0 ">
      AND upper(invest_no) LIKE concat(concat('%',upper(#{investNo}),'%'))
  </if>
  ORDER BY update_time DESC
</select>