sql 应用记录
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SELECT * FROM (select aa.*,bb.mentalvisitid, case when bb.BCSFXS=‘1‘ then ‘门诊‘ when bb.BCSFXS=‘2‘ then ‘家庭访视‘ else ‘电话‘ end as BCSFXS ,bb.visitdate, case when bb.Hospitalstatus=‘1‘ then ‘目前正在住院‘ when bb.Hospitalstatus=‘2‘ then ‘曾住院,现未住院‘ else ‘未住院‘ end as Hospitalstatus, case when bb.visittype=‘1‘ then ‘不稳定‘ when bb.visittype=‘2‘ then ‘基本稳定‘ else ‘稳定‘ end as visittype , case when bb.Followmedicine=‘0‘ then ‘按医嘱规律用药‘ when bb.Followmedicine=‘1‘ then ‘间断用药‘ when bb.Followmedicine=‘2‘ then ‘不用药‘ else ‘医嘱无需用药‘ end as Followmedicine, case when bb.Treatment=‘1‘ then ‘痊愈‘ when bb.Treatment=‘2‘ then ‘好转‘ when bb.Treatment=‘3‘ then ‘无变化‘ when bb.Treatment=‘4‘ then ‘加重‘ else ‘此项不适用‘ end as Treatment, case when bb.Labcheck =‘2‘ then ‘有‘ else ‘无‘ end as Labcheck, bb.labcheckother, (CASE WHEN bb.SYMPTOMS like ‘%1%‘ then ‘幻觉 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%2%‘ then ‘交流困难 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%3%‘ then ‘猜疑 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%4%‘ then ‘喜怒无常 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%5%‘ then ‘行为怪异 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%6%‘ then ‘兴奋话多 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%7%‘ then ‘伤人毁物 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%8%‘ then ‘悲观厌世 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%9%‘ then ‘无故外走 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%10%‘ then ‘自语自笑 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%11%‘ then ‘孤僻懒散 ‘ end || CASE WHEN bb.SYMPTOMS like ‘%12%‘ then ‘其他 ‘ end ) as SYMPTOMS, (CASE WHEN bb.RECOVERYMANNER like ‘%1%‘ then ‘生活劳动能力 ‘ end || CASE WHEN bb.RECOVERYMANNER like ‘%2%‘ then ‘职业训练 ‘ end || CASE WHEN bb.RECOVERYMANNER like ‘%3%‘ then ‘学习能力 ‘ end || CASE WHEN bb.RECOVERYMANNER like ‘%4%‘ then ‘社会交往 ‘ end || CASE WHEN bb.RECOVERYMANNER like ‘%5%‘ then ‘其他 ‘ end ) as RECOVERYMANNER, (select wm_concat(to_char(medname) || ‘(‘ || ‘每日‘ || to_char(usage) || ‘次 , ‘ || to_char(amount) || ‘)‘ ) from MB_MentalVisit_Medicine where ISSTATE = ‘1‘ and Mentalvisitid = bb.mentalvisitid) AS MEDICINE, case when bb.DANGERSTATUS=‘0‘ then ‘0级‘ when bb.DANGERSTATUS=‘1‘ then ‘1级‘ when bb.DANGERSTATUS=‘2‘ then ‘2级‘ when bb.DANGERSTATUS=‘3‘ then ‘3级‘ when bb.DANGERSTATUS=‘4‘ then ‘4级‘ when bb.DANGERSTATUS=‘5‘ then ‘5级‘ end as DANGERSTATUS, case when bb.SELFKNOW=‘1‘ then ‘自知力完全‘ when bb.SELFKNOW=‘2‘ then ‘自知力不全‘ when bb.SELFKNOW=‘3‘ then ‘自知力缺失‘ end as SELFKNOW, case when bb.SLEEP=‘1‘ then ‘良好‘ when bb.SLEEP=‘2‘ then ‘一般‘ when bb.SLEEP=‘3‘ then ‘较差‘ end as SLEEP, case when bb.EATING=‘1‘ then ‘良好‘ when bb.EATING=‘2‘ then ‘一般‘ when bb.EATING=‘3‘ then ‘较差‘ end as EATING, case when bb.PERSONALLIFE=‘1‘ then ‘良好‘ when bb.PERSONALLIFE=‘2‘ then ‘一般‘ when bb.PERSONALLIFE=‘3‘ then ‘较差‘ end as PERSONALLIFE, case when bb.FAMILY=‘1‘ then ‘良好‘ when bb.FAMILY=‘2‘ then ‘一般‘ when bb.FAMILY=‘3‘ then ‘较差‘ end as FAMILY, case when bb.PRODUCTWROK=‘1‘ then ‘良好‘ when bb.PRODUCTWROK=‘2‘ then ‘一般‘ when bb.PRODUCTWROK=‘3‘ then ‘较差‘ end as PRODUCTWROK, case when bb.STUDY=‘1‘ then ‘良好‘ when bb.STUDY=‘2‘ then ‘一般‘ when bb.STUDY=‘3‘ then ‘较差‘ end as STUDY, case when bb.SOCIAL=‘1‘ then ‘良好‘ when bb.SOCIAL=‘2‘ then ‘一般‘ when bb.SOCIAL=‘3‘ then ‘较差‘ end as SOCIAL, bb.VISITDOCTOR, case when (select Count(*) from MB_Autograph where Sfid=bb.mentalvisitid and Sf_type =‘kf_mentalvisit‘)=1 then ‘电子签名‘ else ‘‘ end as DZQM, bb.HZJSQM, ROW_NUMBER() OVER(PARTITION BY aa.personid ORDER BY bb.Mentalvisitid DESC) RNO from (SELECT PERSONID, TOWNNAME, PERSONCODE, PNAME, PHONENO, BIRTHDAY, RESIDENCEADDRESS, CREATEDATE, GENDERCODE, GENDERNAME, DISEASE1, DISDATE1, DISEASE2, DISDATE2, DISEASE3, DISDATE3, DISEASE4, DISDATE4, DISEASE5, DISDATE5, DISEASE6, DISDATE6, IDCARDNO,VILLAGENAME,relationname, (SELECT COUNT(A.MENTALVISITID) FROM KF_MENTALVISIT A WHERE A.PERSONID = P.PERSONID AND A.ISDELETED = ‘0‘ and Visitdate >= to_date(‘2015-05-14‘,‘yyyy-MM-dd‘) and Visitdate <= to_date(‘2018-07-24‘,‘yyyy-MM-dd‘)) AS VISITEDTIMES, (SELECT B.RELATION FROM KF_MENTAL B WHERE B.ISDELETED = ‘0‘ AND B.PERSONID = P.PERSONID AND ROWNUM <= 1) AS RELATION, (SELECT B.LOCKSITUATION FROM KF_MENTAL B WHERE B.ISDELETED = ‘0‘ AND B.PERSONID = P.PERSONID AND ROWNUM <= 1) AS LOCKSITUATION, (SELECT B.RECENTDIAGNOSE FROM KF_MENTAL B WHERE B.ISDELETED = ‘0‘ AND B.PERSONID = P.PERSONID AND ROWNUM <= 1) AS RECENTDIAGNOSE, (SELECT GUARDIAN FROM KF_MENTAL B WHERE B.ISDELETED = ‘0‘ AND B.PERSONID = P.PERSONID AND ROWNUM <= 1) AS GUARDIAN, (SELECT FIRSTTIME FROM KF_MENTAL B WHERE B.ISDELETED = ‘0‘ AND B.PERSONID = P.PERSONID AND ROWNUM <= 1) AS FIRSTTIME,ROW_NUMBER() OVER(ORDER BY PERSONCODE DESC) AS RN FROM DAGL_PERSON P WHERE p.isdeleted = ‘0‘ and p.status = ‘正常‘ and p.diseasecode like ‘%,8,%‘ and ( p.villagecode like ‘370783%‘ ) and ( p.villagecode like ‘370783112%‘ ) and (select count(t.MENTALVISITID) as visitedTimes from KF_MENTALVISIT t where t.isdeleted = ‘0‘ and t.personid = p.personid and Visitdate >= to_date(‘2015-05-14‘,‘yyyy-MM-dd‘) and Visitdate <= to_date(‘2018-07-24‘,‘yyyy-MM-dd‘)) >= 1 and exists(select 1 from kf_mental where kf_mental.personid=p.personid) ) aa left join kf_mentalvisit bb ON aa.personid = bb.personid)C where 1=1 and Visitdate >= to_date(‘2015-05-14‘,‘yyyy-MM-dd‘) and Visitdate <= to_date(‘2017-07-24‘,‘yyyy-MM-dd‘)
解析：
1.Case When Then end
添加的 if else的逻辑
2. wm_concat() , wm_concat(to_char())
多条记录合并成一条，类似于for
3. || 拼接字符串用
类似于操作符了
4. () 可以连表查字段
类似于函数执行一部分操作
5.PARTITION BY ... ORDER BY ... DESC
多表合并时使用的操作
6.where 条件中 exists()
7.left join on 注意小括号的使用
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