カテゴリー: Java

検索条件を各項目の一時テーブルに入れて、ジョインするかしないかは、パラメータで指示してます。

[ SQL例 ]

 <!-- 船スペックマスタリスト --> 
 <!-- 使用 -->
  <select id="selVesselSpecList2" parameterType="ParamVesselSpec" resultType="VesselSpec">
    select * from (
		select
			v.ukfld as id, v.ukfld as imo,
			
			v.Name as vessel, 
      coalesce(fc_acc6m(v.Name), '') as acc6m,
    
			coalesce(en.cnt_en, 0) as cnt_en, 
      coalesce(`in`.cnt_in, 0) as cnt_in,     
			coalesce(eo.cnt_eo, 0) as cnt_eo, 			
			coalesce(io.cnt_io, 0) as cnt_io, 
      coalesce(ua.cnt_ua, 0) as cnt_ua, 
			
			v.TEU, v.`Year`, v.Speed, v.GrossT, v.DeadW, v.`call`, v.Cntry,  
		
			v.tm_add, v.tm_updt, 
			greatest(v.tm_add, v.tm_updt, coalesce(mt.TM_ADD, '2000-01-01 00:00:00')) as tm_lastupdt,
		
			v.is_manadd,
    
      coalesce(mt.LENGTH_OVERALL, 0) as `length`,
			coalesce(mt.BREADTH_EXTREME, 0) as width,
			coalesce(mt.DRAUGHT, 0) as draught,
    
      coalesce(round(mt.LENGTH_OVERALL, 0), 0) as `length_int`,
			coalesce(round(mt.BREADTH_EXTREME, 0), 0) as width_int,
			coalesce(round(mt.DRAUGHT, 0), 0) as draught_int,
    
			COALESCE(mt.LIQUID_OIL, 0) AS liquid_oil,
			COALESCE(mt.FUEL_CONSUMPTION, '') AS fuel_consumption,
			COALESCE(mt.OWNER, '') AS owner,			
			COALESCE(mt.MANAGER, '') AS manager,
			COALESCE(mt.MANAGER_OWNER, '') AS manager_owner    
			
			
		from 
			vessel2 v
    
      left outer join vessel_mt mt on (v.ukfld = mt.IMO) 
    
      <if test="!isTEUselAll">
        inner join tmp_imo_teu tt on (
        v.ukfld = tt.IMO and tt.ID_SESSION = #{idSession} and tt.NM_GRID = 'specs' 
        )
      </if>
      <if test="!isYearselAll">
        inner join tmp_imo_year yt on (
        v.ukfld = yt.IMO and yt.ID_SESSION = #{idSession} and yt.NM_GRID = 'specs' 
        )        
      </if>
      <if test="!isSpeedselAll">
        inner join tmp_imo_speed st on (
        v.ukfld = st.IMO and st.ID_SESSION = #{idSession} and st.NM_GRID = 'specs' 
        )        
      </if>
      
      <if test="!isLengthselAll">
        inner join tmp_imo_length lg on (
        mt.IMO = lg.IMO and lg.ID_SESSION = #{idSession} and lg.NM_GRID = 'specs' 
        )        
      </if>
      <if test="!isWidthselAll">
        inner join tmp_imo_width wd on (
        mt.IMO = wd.IMO and wd.ID_SESSION = #{idSession} and wd.NM_GRID = 'specs' 
        )        
      </if>
      <if test="!isDraughtselAll">
        inner join tmp_imo_draught dr on (
        mt.IMO = dr.IMO and dr.ID_SESSION = #{idSession} and dr.NM_GRID = 'specs' 
        )        
      </if>
      
    
			left outer join (
			select imo, count(*) as cnt_en from sch_export_source group by imo
			) en 
			on (v.ukfld = en.imo)
			
			left outer join (
			select imo, count(*) as cnt_in from sch_import_source group by imo
			) `in` 
			on (v.ukfld = `in`.imo)
		      
      left outer join (
			select imo, count(*) as cnt_eo from sch_export_source_old group by imo
			) eo 
			on (v.ukfld = eo.imo)
      
      left outer join (
			select imo, count(*) as cnt_io from sch_import_source_old group by imo
			) io 
			on (v.ukfld = io.imo)    
      
			left outer join (
			select u.vessel, count(u.id) as cnt_ua from sch_useradd u group by vessel
			) ua on (v.Name = ua.vessel)             
      
    where 
      1 = 1 and v.Name like concat('%', #{vsllk}, '%') and
      ukfld like concat('%', #{imolk}, '%')
      <if test="isModOnly">
        and is_manadd = 1
      </if>
    ) a
    order by
      ${sidx} ${sord}  
    limit ${skip}, ${pgrec}  
  </select>

[ 使っているテーブル ]

船マスタ

CREATE TABLE `vessel2` (
	`Name` VARCHAR(36) NOT NULL DEFAULT '' COMMENT '船名',
	`call` VARCHAR(9) NOT NULL DEFAULT '' COMMENT '無線局呼出符号',
	`Year` SMALLINT(6) NOT NULL DEFAULT '0' COMMENT '建造年',
	`Speed` FLOAT NOT NULL DEFAULT '0' COMMENT '速力',
	`TEU` SMALLINT(6) NOT NULL DEFAULT '0' COMMENT '積載TEU',
	`GrossT` INT(11) NOT NULL DEFAULT '0' COMMENT 'グロス重量',
	`DeadW` INT(11) NOT NULL DEFAULT '0' COMMENT '重量重量',
	`Cntry` VARCHAR(2) NOT NULL DEFAULT '' COMMENT '船籍国コード',
	`ukfld` INT(11) NOT NULL DEFAULT '0' COMMENT 'IMOコード',
	`tm_add` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '追加時刻',
	`tm_updt` DATETIME NOT NULL DEFAULT '2000-01-01 00:00:00' COMMENT '最終更新時刻',
	`is_manadd` TINYINT(4) NOT NULL DEFAULT '0' COMMENT 'ユーザー更新フラグ',
	`ChgName` VARCHAR(36) NOT NULL DEFAULT '0' COMMENT '参照結合用変換船名',
	PRIMARY KEY (`ukfld`),
	INDEX `vessel2_Name` (`Name`),
	INDEX `vessel2_ChgName` (`ChgName`)
)
COMMENT='船マスタ (利用)'
COLLATE='utf8_general_ci'
ENGINE=MyISAM

一時テーブル (一部)

・ID_SESSION はTomcatのセッションIDでユーザー別
・ほっておくと肥大するので、夜中に全レコード削除

CREATE TABLE `tmp_imo_teu` (
	`ID` INT(11) NOT NULL AUTO_INCREMENT COMMENT 'シーケンス番号',
	`ID_SESSION` VARCHAR(70) NOT NULL DEFAULT '' COMMENT 'WEBサーバーセッションID',
	`NM_GRID` VARCHAR(20) NOT NULL DEFAULT '' COMMENT 'jqGridグリッドID',
	`IMO` INT(11) NOT NULL DEFAULT '0' COMMENT 'IMOコード',
	`TM_ADD` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '追加時刻',
	PRIMARY KEY (`ID`),
	INDEX `tmp_imo_ID_SESSION` (`ID_SESSION`),
	INDEX `tmp_imo_NM_GRID` (`NM_GRID`),
	INDEX `tmp_imo_IMO` (`IMO`)
)
COMMENT='船スペック検索用IMO一時テーブル'
COLLATE='utf8_general_ci'
ENGINE=InnoDB
AUTO_INCREMENT=5627
;

CREATE TABLE `tmp_imo_year` (
	`ID` INT(11) NOT NULL AUTO_INCREMENT COMMENT 'シーケンス番号',
	`ID_SESSION` VARCHAR(70) NOT NULL DEFAULT '' COMMENT 'WEBサーバーセッションID',
	`NM_GRID` VARCHAR(20) NOT NULL DEFAULT '' COMMENT 'jqGridグリッドID',
	`IMO` INT(11) NOT NULL DEFAULT '0' COMMENT 'IMOコード',
	`TM_ADD` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '追加時刻',
	PRIMARY KEY (`ID`),
	INDEX `tmp_imo_ID_SESSION` (`ID_SESSION`),
	INDEX `tmp_imo_NM_GRID` (`NM_GRID`),
	INDEX `tmp_imo_IMO` (`IMO`)
)
COMMENT='船スペック検索用IMO一時テーブル'
COLLATE='utf8_general_ci'
ENGINE=InnoDB
;

[ 一時テーブル削除追加用SQL ]

・テーブル名を ${tmptbl} のパラメータで渡すことで、まとめてます。

 <!-- マルチセレクト用一時テーブル更新 -->
 <!-- 削除 -->
 <delete id="delIMOTmpAll" parameterType="MyBatisParent">
   delete from ${tmptbl} where ID_SESSION = #{idSession} and NM_GRID = #{nmGrid}
 </delete>
 <!-- 追加 -->
 <insert id="insAIMOTmp" parameterType="MyBatisParent">
   insert into ${tmptbl}
   (ID_SESSION, NM_GRID, IMO)
   select #{idSession}, #{nmGrid}, 
   ukfld
   from ${vslmsttbl}
   where ${vslColumn} between #{insMinVal} and #{insMaxVal}
 </insert>
 <insert id="insAIMOTmpmt" parameterType="MyBatisParent">
   insert into ${tmptbl}
   (ID_SESSION, NM_GRID, IMO)
   select #{idSession}, #{nmGrid}, IMO
   from ${vslmsttbl}
   where ${vslColumn} between #{insMinVal} and #{insMaxVal}
 </insert>