Mybatis增刪改查之Oracle

摘要： Mybatis增刪改查之Oracle 一. 查詢 普通查詢(返回普通的持久層物件,由於資料庫欄位風格和java不同,所以建立一個map對映) <resultMap type="com.xxx.domain.RuleCondition&#...

Mybatis增刪改查之Oracle

一. 查詢

1. 普通查詢(返回普通的持久層物件,由於資料庫欄位風格和java不同,所以建立一個map對映)

   <resultMap type="com.xxx.domain.RuleCondition" id="RuleConditionResultMapWithoutBondList">
   <id column="RC_ID" jdbcType="NUMERIC" property="ruleConditionId"/>
   <result column="RULE_CAT1" jdbcType="VARCHAR" property="ruleCatOne"/>
   <result column="RULE_CAT2" jdbcType="VARCHAR" property="ruleCatTwo"/>
   <result column="RC_OPER_TYPE" jdbcType="VARCHAR" property="ruleOperateSymbol"/>
   <result column="RULE_REF" jdbcType="VARCHAR" property="ruleRef"/>
   <result column="START_EFFECT_TIME" jdbcType="VARCHAR" property="effectTimeOfStart"/>
   <result column="END_EFFECT_TIME" jdbcType="VARCHAR" property="effectTimeOfEnd"/>
   <result column="BOND_CODE_1" jdbcType="VARCHAR" property="bondCodeOne"/>
   <result column="BOND_CODE_2" jdbcType="VARCHAR" property="bondCodeTwo"/>
   <result column="BP_THRESHOLD" jdbcType="NUMERIC" property="bpThreshold"/>
   <result column="RC_STATUS" jdbcType="VARCHAR" property="ruleStatus"/>
   <result column="OPERATOR_ID" jdbcType="VARCHAR" property="operatorId"/>
   <result column="LAST_UPDATED_DATE" jdbcType="DATE" property="lastUpdateTime"/>
   </resultMap> 
   
   <select id="getRuleConditionWithoutBondListById" resultMap="RuleConditionResultMapWithoutBondList">
   select RC_ID,
   RULE_CAT1,
   RULE_CAT2,
   RC_OPER_TYPE,
   RULE_REF,
   START_EFFECT_TIME,
   END_EFFECT_TIME,
   BOND_CODE_1,
   BOND_CODE_2,
   BP_THRESHOLD,
   RC_STATUS,
   LAST_UPDATED_DATE
   FROM RULES_CONDITION
   WHERE RC_ID = #{ruleConditionId,jdbcType=NUMERIC}
   </select>

2. 帶有自定義物件的查詢(帶了一個List)

   <!--collection中的就是查詢附帶的list的函式
   property是java中list的屬性名
   -->
   <resultMap type="com.xxx.domain.RuleCondition" id="RuleConditionResultMap">
   <id column="RC_ID" jdbcType="NUMERIC" property="ruleConditionId"/>
   <result column="RULE_CAT1" jdbcType="VARCHAR" property="ruleCatOne"/>
   <result column="RULE_CAT2" jdbcType="VARCHAR" property="ruleCatTwo"/>
   <result column="RC_OPER_TYPE" jdbcType="VARCHAR" property="ruleOperateSymbol"/>
   <result column="RULE_REF" jdbcType="VARCHAR" property="ruleRef"/>
   <result column="START_EFFECT_TIME" jdbcType="VARCHAR" property="effectTimeOfStart"/>
   <result column="END_EFFECT_TIME" jdbcType="VARCHAR" property="effectTimeOfEnd"/>
   <result column="BOND_CODE_1" jdbcType="VARCHAR" property="bondCodeOne"/>
   <result column="BOND_CODE_2" jdbcType="VARCHAR" property="bondCodeTwo"/>
   <result column="BP_THRESHOLD" jdbcType="NUMERIC" property="bpThreshold"/>
   <result column="RC_STATUS" jdbcType="VARCHAR" property="ruleStatus"/>
   <result column="OPERATOR_ID" jdbcType="VARCHAR" property="operatorId"/>
   <result column="LAST_UPDATED_DATE" jdbcType="DATE" property="lastUpdateTime"/>
   <collection column="RC_ID" property="bondList" ofType="com.xxx.domain.RuleBond"
   select="getBondListByRuleConditionId">
   </collection>
   </resultMap>
   
   <resultMap type="com.xxx.domain.RuleBond" id="RuleBondResultMap">
   <id column="RB_ID" jdbcType="NUMERIC" property="ruleBondId"/>
   <id column="RC_ID" jdbcType="NUMERIC" property="ruleConditionId"/>
   <result column="BOND_CODE" jdbcType="VARCHAR" property="bondCode"/>
   <result column="SECURITY_TERM" jdbcType="VARCHAR" property="term"/>
   <result column="BID_STRATEGY_ID" jdbcType="VARCHAR" property="bidStrategyId"/>
   <result column="OFR_STRATEGY_ID" jdbcType="VARCHAR" property="ofrStrategyId"/>
   <result column="STATUS" jdbcType="VARCHAR" property="status"/>
   <result column="OPERATOR_ID" jdbcType="VARCHAR" property="operatorId"/>
   <result column="LAST_UPDATED_DATE" jdbcType="DATE" property="lastUpdateTime"/>
   </resultMap>
   <!--查詢語句-->
   <select id="getRuleConditionBOsByEnumValue" resultMap="RuleConditionBOResultMap">
   select RC_ID,
   RULE_CAT1,
   RULE_CAT2,
   RC_OPER_TYPE,
   RULE_REF,
   START_EFFECT_TIME,
   END_EFFECT_TIME,
   BOND_CODE_1,
   BOND_CODE_2,
   BP_THRESHOLD,
   RC_STATUS,
   LAST_UPDATED_DATE
   FROM RULES_CONDITION
   WHERE RULE_CAT1 = #{enumValue,jdbcType=VARCHAR}
   </select>
   <!--附帶List的查詢語句-->
   <select id="getBondListByRuleConditionId" resultMap="RuleBondResultMap">
   select RB_ID,
   RC_ID,
   t1.BOND_CODE,
   t2.SECURITY_TERM,
   BID_STRATEGY_ID,
   OFR_STRATEGY_ID,
   t1.STATUS,
   t1.LAST_UPDATED_DATE
   FROM RULES_BOND t1
   left join BOND_BASIS_INFO t2 on t1.BOND_CODE = t2.BOND_CODE
   WHERE RC_ID = #{ruleConditionId,jdbcType=NUMERIC}
   </select>

二. 新增

1. 普通新增

   <insert id="addRuleBond" parameterType="com.xxx.domain.RuleBond">
   insert into RULES_BOND
   (RB_ID,
   RC_ID,
   BOND_CODE,
   BID_STRATEGY_ID,
   OFR_STRATEGY_ID,
   STATUS,
   OPERATOR_ID,
   LAST_UPDATED_DATE)
   values (SEQ_RULES_BOND.nextVal,
   #{ruleConditionId,jdbcType=NUMERIC},
   #{bondCode,jdbcType=VARCHAR},
   #{bidStrategyId,jdbcType=VARCHAR},
   #{ofrStrategyId,jdbcType=VARCHAR},
   #{status,jdbcType=VARCHAR},
   #{operatorId,jdbcType=VARCHAR},
   systimestamp)
   </insert>

2. 返回主鍵(多了一個selectkey)

   <!--selectkey中 keyproperty是寫java中屬性名稱
   後面的values中將得到的ruleBondId賦值即可-->
   <insert id="addRuleBond" parameterType="com.xxx.domain.RuleBond">
    <selectKey resultType="java.lang.Integer" order="BEFORE" keyProperty="ruleBondId">
   SELECT SEQ_RULES_BOND.Nextval from DUAL
   </selectKey>
   insert into RULES_BOND
   (RB_ID,
   RC_ID,
   BOND_CODE,
   BID_STRATEGY_ID,
   OFR_STRATEGY_ID,
   STATUS,
   OPERATOR_ID,
   LAST_UPDATED_DATE)
   values (#{ruleBondId,jdbcType=NUMERIC},
   #{ruleConditionId,jdbcType=NUMERIC},
   #{bondCode,jdbcType=VARCHAR},
   #{bidStrategyId,jdbcType=VARCHAR},
   #{ofrStrategyId,jdbcType=VARCHAR},
   #{status,jdbcType=VARCHAR},
   #{operatorId,jdbcType=VARCHAR},
   systimestamp)
   </insert>

3. 批量新增

   參照網上寫了一下,一直報缺失表示式,原來是insert into後面 是不需要 values的;

   還有就是關於Oracle返回主鍵List ,我在網上暫時還沒找到能正確執行的例子 ,求大佬告知

   <insert id="addRuleBondList" parameterType="java.util.List">
   insert into RULES_BOND
   (RB_ID,
   RC_ID,
   BOND_CODE,
   BID_STRATEGY_ID,
   OFR_STRATEGY_ID,
   STATUS,
   OPERATOR_ID,
   LAST_UPDATED_DATE
   )
   SELECTSEQ_RULES_BOND.NEXTVAL,t.*
   FROM (
   <foreach close=")" collection="ruleBonds" item="item" index="index" open="(" separator="union ALL">
   select
   #{item.ruleConditionId,jdbcType=NUMERIC},
   #{item.bondCode,jdbcType=VARCHAR},
   #{item.bidStrategyId,jdbcType=VARCHAR},
   #{item.ofrStrategyId,jdbcType=VARCHAR},
   #{item.status,jdbcType=VARCHAR},
   #{item.operatorId,jdbcType=VARCHAR},
   systimestamp
   from dual
   </foreach>
   ) t
   </insert>

4. 批量新增,存在則插入

   <insert id="generateBaselines" parameterType="java.util.List">
   MERGE INTO RULES_CONDITION t
   USING (
   <foreach collection="ruleConditions" item="item" index="index" separator="union">
   select #{item.ruleConditionId,jdbcType=NUMERIC} id,
   #{item.ruleCatOne,jdbcType=VARCHAR} cat1,
   #{item.ruleCatTwo,jdbcType=VARCHAR} cat2,
   #{item.bondCodeOne,jdbcType=VARCHAR} code1,
   #{item.bondCodeTwo,jdbcType=VARCHAR} code2,
   #{item.ruleOperateSymbol,jdbcType=VARCHAR} symbol,
   #{item.operatorId,jdbcType=VARCHAR} u
   from DUAL
   </foreach>) t1
   <!-- 哪些條件相符-->
   ON (t.RULE_CAT1 = t1.cat1 AND t.RULE_CAT2 = t1.cat2 AND t.RC_OPER_TYPE = t1.symbol)
   <!--符合條件時-->
   WHEN MATCHED THEN
   UPDATE SET t.BOND_CODE_1 = t1.code1,t.BOND_CODE_2 = t1.code2,t.LAST_UPDATED_DATE = default
   <!--不符合條件時-->
   WHEN NOT MATCHED THEN
   INSERT(RC_ID, RULE_CAT1, RULE_CAT2, RC_OPER_TYPE, RULE_REF, BOND_CODE_1, BOND_CODE_2,RC_STATUS,OPERATOR_ID,LAST_UPDATED_DATE)
   VALUES (SEQ_RULES_CONDITION.nextval, t1.cat1, t1.cat2, t1.symbol, '1', t1.code1, t1.code2, '0', t1.u,default)
   </insert>

三. 修改

(begin,end最好還是加上,之前報錯一直找不到錯,加上begin,end就好了;end前後都加分號";",begin不用加)

1. 普通修改

   <update id="modifyRuleBond" parameterType="com.xxx.domain.RuleBond">
   begin
   update RULES_BOND
   set
   <if test="bidStrategyId!=null">
   BID_STRATEGY_ID=#{bidStrategyId,jdbcType=VARCHAR},
   </if>
   <if test="ofrStrategyId!=null">
   OFR_STRATEGY_ID=#{ofrStrategyId,jdbcType=VARCHAR},
   </if>
   <if test="operatorId!=null">
   OPERATOR_ID=#{operatorId,jdbcType=VARCHAR},
   </if>
   <if test="status!=null">
   STATUS=#{status,jdbcType=VARCHAR},
   </if>
   LAST_UPDATED_DATE=SYSTIMESTAMP
   WHERE RB_ID = #{ruleBondId,jdbcType=NUMERIC};
   end;
   </update>

1. 批量修改(begin,end加在 foreach的open和close處,記得加上分號 )

   <update id="modifyRuleCondition" parameterType="java.util.List">
   <foreach collection="ruleConditions" item="item" index="index" open="begin" close=";end;" separator=";">
   UPDATE RULES_CONDITION
   <set>
   <if test="item.ruleRef!=null">
   RULE_REF=#{item.ruleRef,jdbcType=VARCHAR},
   </if>
   <if test="item.effectTimeOfStart!=null">
   START_EFFECT_TIME=#{item.effectTimeOfStart,jdbcType=VARCHAR},
   </if>
   <if test="item.effectTimeOfEnd!=null">
   END_EFFECT_TIME= #{item.effectTimeOfEnd,jdbcType=VARCHAR},
   </if>
   <if test="item.bpThreshold!=null">
   BP_THRESHOLD= #{item.bpThreshold,jdbcType=NUMERIC},
   </if>
   <if test="item.ruleStatus!=null">
   RC_STATUS= #{item.ruleStatus,jdbcType=VARCHAR},
   </if>
   <if test="item.operatorId!=null">
   OPERATOR_ID= #{item.operatorId,jdbcType=VARCHAR},
   </if>
   LAST_UPDATED_DATE=default,
   </set>
   WHERE RC_ID = #{item.ruleConditionId,jdbcType=INTEGER}
   </foreach>
   </update>

四. 刪除

1. 普通刪除

   <delete id="deleteRuleBond" parameterType="com.xxx.domain.RuleBond">
   delete
   from RULES_BOND
   where RB_ID = #{ruleBondId}
   AND TO_TIMESTAMP(TO_CHAR(LAST_UPDATED_DATE, 'yyyy-MM-dd hh24:mi:ss'), 'yyyy-MM-dd hh24:mi:ss') = #{lastUpdateTime,jdbcType=TIMESTAMP}
   </delete>

1. 批量刪除

   ​1)批量執行語句

   <delete id="batchDeleteRuleBond" parameterType="java.util.List">
   <foreach collection="ruleBonds" open="begin" close=";end;" item="item" separator=";">
   DELETE FROM RULES_BOND
   WHERE RB_ID = #{item.ruleBondId} and TO_TIMESTAMP(TO_CHAR(LAST_UPDATED_DATE, 'yyyy-MM-dd hh24:mi:ss'), 'yyyy-MM-dd hh24:mi:ss') = #{item.lastUpdateTime,jdbcType=TIMESTAMP}
   </foreach>
   </delete>

   ​2)綜合成一條語句執行

   <delete id="batchDeleteRuleBond" parameterType="java.util.List">
   DELETE FROM RULES_BOND
   WHERE RB_ID IN (
   SELECT A.RB_ID FROM (
   <foreach collection="ruleBonds" item="item" separator="UNION All">
   SELECT * FROM RULES_BOND
   WHERE RB_ID = #{item.ruleBondId} AND TO_TIMESTAMP(TO_CHAR(LAST_UPDATED_DATE, 'yyyy-MM-dd hh24:mi:ss'), 'yyyy-MM-dd hh24:mi:ss') = #{item.lastUpdateTime,jdbcType=TIMESTAMP}
   </foreach>
   )A
   )
   </delete>

   ​