Sql语句收获
1、
select * from 表 order by time asc
最早时间在前
select * from 表 order by time desc
最新时间在前
2、模糊查询
select id, sys_user.user_name as userName,sys_user.nick_name as nickName,score_theme.theme_name as themeName,score_theme.create_time as createTime
from sys_user
inner join score_theme
on sys_user.user_id = score_theme.fk_publish_user
and deleted = 1
**<if test="searchValue !=null and searchValue != ''">and sys_user.user_name like concat('%',#{searchValue},'%')( or sys_user.nick_name like concat('%',#{searchValue},'%') )( or score_theme.theme_name like concat('%',#{searchValue},'%') )</if>**order by score_theme.create_time desc</select>
多个字段模糊查询 concat(’%’,#{searchValue},’%’)
3、mybaties的聚连
<resultMap type="com.gwm.score.domain.vo.ScoreTargetVO" id="ScoreTargetVOResult"><result property="id" column="id" /><result property="targetName" column="targetName" /><collection property="scoreDimensionVOList"select="selectScoreDimensionVoList"column="{targetId=targetId,fkVoter=fkVoter}"ofType="com.gwm.score.domain.vo.ScoreDimensionVO"></collection></resultMap><select id="getScoreTargetVo" resultMap="ScoreTargetVOResult">select target_name as targetName,end_time as endTime,#{fkVoter} as fkVoter,#{targetId} as targetIdfrom score_target,score_themewhere score_target.id=#{targetId}and score_target.fk_theme_id=score_theme.id</select><select id="selectScoreDimensionVoList" resultType="com.gwm.score.domain.vo.ScoreDimensionVO">select score_dimension.id,dimension_name as dimensionName,(select score from score_recordwhere score_record.fk_target_id=#{targetId}and state=1and fk_dimension_id=score_dimension.idand score_record.fk_voter=#{fkVoter}) as scorefrom score_dimensionwhere fk_theme_id=(select fk_theme_id from score_target where id=#{targetId}) and state =1</select>
colum对应的不是数据库里的字段 而是你查出来的字段得名字
注意
