MyBatis 通用Sql语句

Mybatis 数据类型对应

Java 类型	jdbcType
String	VARCHAR
Integer	INTEGER
Date	TIMESTAMP
Long	BIGINT

 

通用字段，不推荐使用 SELECT * FROM

    pai_id, create_date, modify_date, area_name, up_area_id, floor, last_floor, remark, 
    area_code, area_index, name_en, name_jm, post_code, district_number, sort_name, sel_tag, 
    ass_key, ass_date, area_name_sync_cus

    select 
    
    from tb_im_verbal_trick_info
    where id = #{id,jdbcType=VARCHAR}
  

 

通用条件查询 commonSql

    
     
        and user_status = #{userStatus, jdbcType=INTEGER}
    
    
        modify_time = #{modifyTime,jdbcType=TIMESTAMP}
    
      
        and user_phone like '%${userPhone}%'
    
      
        and user_phone like CONCAT('%',#{userPhone,jdbcType=VARCHAR},'%')
    
      
        and ( real_name like '%${searchVal}%' or name like '%${searchVal}%' )
    
     
        and create_time= #{createTime, jdbcType=TIMESTAMP}
    
      
        and DATE_FORMAT(create_time,'%Y-%m-%d') = ]]> #{createTimeStart, jdbcType=VARCHAR}
    
    
        and DATE_FORMAT(create_time,'%Y-%m-%d')  #{createTimeEnd, jdbcType=VARCHAR}
    
    

    SELECT 
        * 
    FROM 
        tb_im_info
    
  

 

 通用多表查询 commonFromWhere

    FROM 
        msc_base_feedback mbf
    left JOIN msc_server_info msi ON mbf.server_id = msi.id
    left JOIN msc_business_info mbi ON mbf.business_id = mbi.business_id

 

主键查询

接口：

public UscUserInfoBo selectUserInfo(@Param("id") String id);

配置文件：

  	select * from usc_user_info 
  	where id = #{id}

service：

UserInfoBo info = userInfoDao.selectUserInfo(userInfoBo.getId());

 

 根据状态统计查询

    SELECT
        IFNULL(SUM(1),0) all_num
        IFNULL(SUM(case when clear_state = 0 then 1 else 0 end),0) clearStateNo, 
        IFNULL(SUM(case when back_state = 0 then 1 else 0 end),0) backStateNo, 
        IFNULL(SUM(case when back_state = 1 and clear_state = 0 then 1 else 0 end),0) backStateHalf, 
    FROM 
        msc_base_feedback
  

 

查询数据是否以存在 

    SELECT
        count(*)
    from
        ap_perform_role apr
    where
        apr.del_state = 0

 

批量操作

    update ap_perform_role
    
        
            state = #{state,jdbcType=INTEGER},
        
    
    where
        1=1
        
            and id in
            
                #{id}
            
        

 

查询表中的二级项

 查询表中否有子机构的所有机构 ( parent_id = id )

    SELECT 
        one.id,
        one.dept_name
    FROM sys_dept one
    WHERE
        one.id in (SELECT parent_id FROM sys_dept WHERE parent_id in 
    
        #{item}
    
    and del_state = 0
    )

 

关联查询