-- left join  以左边的表为主，根据on关联条件，左边所有的数据都会显示出来，右边表中在左边没有匹配的数据会以Null来代替
-- right join 是以右边为主，根据on关联查询出数据，根据on关联出来的数据会选出来，左边表中在右边没有匹配的数据会以Null来代替
-- inner join 要根据on为查询条件 查询出左边和右边都能根据on匹配的数据 ，没有匹配的不会选出来，就用 inner join 

##*****************一下都是DB2中的操作*********************************************************************select * from conf_bt_before_task where name like '%信函预处理%'select * from conf_bt_after_task where name in('导出直催PDA外访总结码','待外催案件自动退案处理','预测拨号结果更新','更新诉讼失效日期')SELECT  T.* FROM  TBL_PCCS_BIZ_ACT_TC T WHERE  T.case_id = 120151021000061668
AND T.crt_time LIKE '2015-10-20%'
AND EXISTS(SELECT    1  FROM    TBL_PCCS_BIZ_CUST_TEL AS EWHERE    T.phone = E.phone   AND data_source='HOST' ) WITH ur
-----------------------------------------------------------------------------------------------------SELECT case_id ,QUEUE_ID  FROM TBL_PCCS_BIZ_CASE_CASEMAIN m    WHERE  value(m.QUEUE_ID,'')<>'E0100'
AND NOT EXISTS ( SELECT 1 FROM TBL_PCCS_BIZ_CASE_ACCT a WHERE m.CASE_ID=a.CASE_ID AND value(a.STIS_FLAG,'N')='N'  ) ------------------------------------------------------------------------------------------------------ SELECT  * FROM  TBL_PCCS_BIZ_CASE_CASEMAIN m WHERE  value(m.QUEUE_ID,'')<>'E0100'
AND EXISTS(   SELECT  1   FROM  TBL_PCCS_BIZ_CASE_ACCT aWHERE   m.CASE_ID=a.CASE_ID   AND value(a.STIS_FLAG,'N')='N' )
-----------------------------------------------------------------------------------------------------SELECT * FROM   tbl_pccs_biz_case_casemain AS m
LEFT JOIN(   SELECT DISTINCT case_id,acct_no  FROM  tbl_pccs_biz_case_acct   WHERE   stis_flag !='N' ) AS a
ON  m.case_id = a.case_id  WHERE   value(m.queue_id,'')<>'E0100'
-----------------------------------------------------------------------------------------------------SELECT * FROM  tbl_pccs_biz_case_casemain
WHERE  case_id IN   (  SELECT  case_id   FROM  tbl_pccs_biz_case_acct   WHERE stis_flag !='N')
AND value(queue_id,'')<>'E0100'-----------------------------------------------------------------------------------------------------SELECT CHK.ASST_CHK_ID, CHK.STATUS, CHK.CASE_ID, CHK.CUST_COMPANY,CHK.BEGIN_TIME, CHK.NODE_TIME_LMT,DIC.BUSIN_NAME
FROM TBL_PCCS_BIZ_CASE_ASTCHK AS CHK
LEFT OUTER JOIN  TBL_PCCS_BNDICT_T_DICTIONARY AS DIC
ON  CHK.CUST_COMPANY = DIC.BUSIN_ID
WHERE DATE(CHK.ASS_CHK_PROC_TIME_LMT) < ( DATE('2012-2-12')+ 1 DAY)
AND CHK.STATUS IN('02', '05', '07', '09')
AND DIC.BUSIN_TYPE_ID='PDA_Org_Center' WITH UR-----------------------------------------------------------------------------------------------------SELECT CHAR(UPDATE_DATE,ISO),SOURCE,SEQ,CUSTID,FUN,ACCOUNT,STATUS_CODE,STATUS_CODE_2,MEMO,PAY_TYPE,
OPERATOR,EXT, rownumber() over (ORDER BY SEQ) AS ROW_NEXT FROM BT_OPT_UPLOADHOST-------------------------------------------------------------------------------------------------------正常25号大于26号，数据库中 26是大于25号的
SELECT   * FROM   TBL_PCCS_BIZ_CASE_CASEMAIN
WHERE   IN_QUEUE_TIME <=(DATE('2020-08-30') - (2) DAY) AND QUEUE_ID ='R0204' AND CASE_ID= 12016082800
AND AS_MAINTAINER <> 'ASPECT'
-----------------------------------------------------------------------------------------------------SELECT T.* FROM TBL_PCCSWB_BIZ_OTHER_LINK_TEL AS T
INNER JOIN WBCL_USR.TBL_PCCSWB_BIZ_CASE_CASEMAIN AS C ON T.CUST_NO=C.CUST_NO AND C.CUST_NO <>''
INNER JOIN WBCL_USR.TBL_PCCSWB_BIZ_CASE_OUTAGREE AS O ON C.CASE_ID=O.CASE_ID
AND EXISTS (SELECT 1 FROM DBCL_USR.TBL_PCCS_CONF_GL_GLOBAL as L
where O.OA_CASE_PROTL_ADJ_DATE=L.BATCH_DATE FETCH FIRST ROWS ONLY)
AND O.DEPUTE_DATE<SUBSTR(T.CRT_TIME,1,10) AND SUBSTR(T.CRT_TIME,1,10)<O.REAL_BACK_CASE_DATE
AND O.CUST_NO<>'' -----------------------------------------------------------------------------------------------------SELECTcaseId.CASE_ID
FROM(SELECT  caseMain.CASE_IDFROM  TBL_PCCS_BIZ_CASE_CASEMAIN AS caseMainWHEREEXISTS(SELECT     1FROM     TBL_PCCS_BIZ_PREVIOUS_STOP_COLL AS proStopCollWHERE     proStopColl.CUST_NO=caseMain.CUST_NO)AND caseMain.QUEUE_ID!='E0100') AS caseId--------------------------------------------------------------------------------------------------SELECT * FROM TBL_PCCS_FP_DEDUCT_DETAIL_BATCH fetch first 1 rows only--清空表
ALTER TABLE TBL_PCCS_BIZ_TMP_HANDWORK_CREDITL ACTIVATE NOT LOGGED INITIALLY WITH EMPTY TABLE
DELETE FROM TBL_PCCS_BIZ_TMP_HANDWORK_CREDITLDROP TABLE TBL_PCCS_FP_DEDUCT_DETAIL_BATCH
CREATE TABLETBL_PCCS_FP_DEDUCT_DETAIL_BATCH(ID_PCCS BIGINT NOT NULL GENERATED BY DEFAULT AS IDENTITY,CURRENCY VARCHAR(4), NAME VARCHAR(20),AGE INTEGER,RELATION_LEVELS INTEGER DEFAULT 1,SALARY DECIMAL(15,2) DEFAULT 0.0,BIRTHDAY DATE,SYS_TIME TIMESTAMP,UPDATE_USER VARCHAR(20),          DEBIT_CARD_NO VARCHAR(30) NOT NULL, REQ_DEDUCT_AMT DECIMAL(15,2),--double 类型 CERT_TYPE VARCHAR(4),  CERT_NO VARCHAR(30), CRT_TIME       TIMESTAMP     DEFAULT CURRENT TIMESTAMP   NOT NULL ,LST_UPD_TIME   TIMESTAMP     NOT NULL  DEFAULT CURRENT  TIMESTAMP,LST_UPD_DATE   DATE          NOT NULL  DEFAULT CURRENT DATE,LST_UPD_USER   VARCHAR(32)   NOT NULL  DEFAULT 'SYSTEM',REC_STATUS CHARACTER(1)  DEFAULT '0' NOT NULL,SCR_LEVEL      CHARACTER(2)  NOT NULL DEFAULT '00',CONSTRAINT ident   PRIMARY KEY(ID_PCCS))
insert into  TBL_PCCS_FP_DEDUCT_DETAIL_BATCH_HIS( BRANCH_ORG,COMM_TYPE,CURRENCY,ACCT_NO,DEBIT_CARD_NO,
CREDIT_CARD_NO,REQ_DEDUCT_AMT,CERT_TYPE,CERT_NO,CREATE_TIME,CREATE_USER,LST_UPD_TIME, LST_UPD_USER)
values('徐家汇分行','贷款','美元','908654678756','235643535435','686787797897',1000.00,'身份',
'3709231567802864471','2015-07-22 09:37:34','SYSTEM',current timestamp ,'SYSTEM')SELECT DISTINCT bca.CUSTID,   pc.CUST_NAME, pa.CARDID,  pc.PRINCIPAL_RMB_AMT,   pa.FEE_AMT, pda.BALANCE_AMT_CUR,  pc.AUTO_STATE_CODE,   pct.TEL_NO,  pa.BRANCHID
FROM BT_RPT_CREDIT_ACCT bca
LEFT JOIN (  SELECT  * FROM  PCCS_CASE_ACCT   WHERE PCCS_CASE_ACCT.MONEY_TYPE='156') pa
ON pa.CASEID = bca.CASEID
LEFT JOIN PCCS_CASE_CASEMAIN pc  ON  pc.CASEID = bca.CASEID
LEFT JOIN PCCS_CASE_DEBIT_ACCT pda  ON pda.CUSTID = bca.CUSTID
LEFT JOIN(  SELECT TEL_NO, custid  FROM PCCS_CUST_TEL  WHERE TEL_TYPE = 'MB'  AND CUST_REL = 'SELF')
AS pct  ON pct.CUSTID = bca.custid -----------------------------------------------------------------------------------------------------SELECT a.CustID, a.Tel_No, a.Dial_Time, b.DISPOSITION_NAME
FROMBT_IMP_DAILERCONSQ a,CONF_AUTODIAL_Disposition b
WHERE  a.DispID=INT(b.DispositionId) ORDER BY a.CustID-----------------------------------------------------------------------------------------------------select c.ACCT_NO from TBL_PCCS_BIZ_BT_TMP_CREDIT_ACCT c where not exists
(select 1 from TBL_PCCS_BIZ_BT_TMP_DEBIT_ACCT d where d.CUST_NO = c.CUST_NO)-----------------------------------------------------------------------------------------------------SELECTc.CUST_NAME,acct.CREDIT_CARD_NO,c.STATEMENT_DATE_STR,SUM(  CASE  WHEN acct.CURRENCY = '156' THEN value(CUR_CYC_STMT_BAL,0)  END) AS CYCLE_BAL_AMT_RMB,SUM( CASE  WHEN acct.CURRENCY = '840'  THEN value(CUR_CYC_STMT_BAL,0)  END) AS CYCLE_BAL_AMT_DOLLAR
FROM TBL_PCCS_BIZ_CASE_CASEMAIN c
LEFT JOIN TBL_PCCS_BIZ_CASE_ACCT acct ON  c.CASE_ID = acct.CASE_ID
WHERE c.CASE_ID = 120150818000000611 AND c.CARD_PROD=201
GROUP BY c.CUST_NAME, acct.CREDIT_CARD_NO, c.STATEMENT_DATE_STR
ORDER BY c.CUST_NAME,acct.CREDIT_CARD_NO WITH ur-----------------------------------------------------------------------------------------------------SELECT  * FROM  TBL_PCCS_BIZ_CASE_CASEMAIN a
INNER JOIN(   SELECT   COLL_ID,  SCEN_ID ,  CENTER_NO  FROM   TBL_PCCS_CONF_GL_COLLIDDEAL  WHERE   DAIL_TYPE IN ('PRDT',  'PRVW') ) b
ON a.CENTER_NO = b.CENTER_NO AND a.PROMPT_MSG_SEQ_NO = b.COLL_ID AND a.TRIAD_SCENID = b.SCEN_ID
WHERE   VALUE((    SELECT   T.check_date  FROM    TBL_PCCS_BIZ_ACT_ACTION TWHERE  a.CASE_ID=T.CASE_ID  AND T.check_date IS NOT NULL  ORDER BY    T.LST_UPD_TIMEFETCH    FIRST row only) ,CURRENT DATE) <=(  SELECT    BATCH_DATE  FROM  TBL_PCCS_CONF_GL_GLOBAL  FETCH    FIRST rows only)
AND(( a.CASE_STOP_COLL_FLAG = 'N'  OR  a.CASE_STOP_COLL_FLAG IS NULL)AND ( a.TEL_COLL_STOP_COL_FLG = 'N'  OR  a.TEL_COLL_STOP_COL_FLG IS NULL))
AND NOT EXISTS
( SELECT 1  FROM  TBL_PCCS_BIZ_APPR_APPR T1  WHERE   T1.CASE_ID=a.CASE_ID  AND T1.APPR_STATUS='APPR' )
AND a.BELONG_BUSI_GRP = 'MDFY' AND a.QUEUE_ID !='E0100'
AND (    a.EVER_COLL_OPER_ID IS NULL  OR  EVER_COLL_OPER_ID='ASPECT')-----------------------------------------------------------------------------------------------------select  count( distinct(case_id) ) from wbcl_usr.TBL_PCCSWB_TMP_BIZ_CASE_CASEMAIN
select  CASE_ID,COUNT(1) from wbcl_usr.TBL_PCCSWB_TMP_BIZ_CASE_CASEMAIN GROUP BY CASE_ID ORDER BY 2
-----------------------------------------------------------------------------------------------------SELECT  M.CASE_ID,  M.QUEUE_ID
FROMTBL_PCCS_BIZ_CASE_CASEMAIN M,  TBL_PCCS_BIZ_CASE_ACCT T,  VIEW_CASE_TRANS V
WHERE  M.CASE_ID=T.CASE_ID AND T.ACCT_NO= V.ACCT_NO AND (    M.QUEUE_ID = 'O0100'  OR  M.QUEUE_ID = 'O0200')
AND VALUE(M.COLL_NO,'')='' AND M.FAKE_TYPE IS NULL
AND EXISTS(SELECT    1  FROM   TBL_PCCS_CONF_GL_QUEUEDEFWHERE     QUEUE_ID = M.LAST_QUEUE_NO   AND TEAM_ID IN('TELE',   'MDFY'))
GROUP BYM.CASE_ID,   M.QUEUE_ID,  M.MIN_PAY_BAL_OF_FS_OA_BU
HAVINGSUM(V.TRANS_AMT) >= M.MIN_PAY_BAL_OF_FS_OA_BU / 2.0-----------------------------------------------------------------------------------------------------select max(G.appr_ser_no) from dbcl_usr.TBL_PCCS_BIZ_APPR_OAORGCHG G where LST_UPD_DATE = date('2015-12-31')
and NEW_COLL_ORG is not null and NEW_COLL_ORG <>'' group by G.case_id-----------------------------------------------------------------------------------------------------select * from TBL_PCCS_BIZ_CUST_TEL where tel_no in(select max(tel_no) from (select  * from TBL_PCCS_BIZ_CUST_TEL T where T.cust_no = '0019712660186' and T.phone in(select  phone from TBL_PCCS_BIZ_CUST_TEL where  DATA_SOURCE  in('HOST') ))group by phone)
------------------------------------------------------------------------------------------------------- CASE WHEN THEN 用法
SELECT  MOVE_CODE,MOVE_TYPE,IS_VISIBLE,
CASE   MOVE_CODE  WHEN   'CUP'     THEN  'W'WHEN   'LJYD'    THEN  'L'WHEN   'BRYD'    THEN  'B'WHEN   'WNXT'    THEN  'W'ELSE   'E' END
from TBL_PCCS_CONF_GL_ACTCODEDEFSELECT CASE  WHEN DATA_SOURCE= 'WLFK' THEN '网络发卡'WHEN  DATA_SOURCE='SJWL' THEN '社交网络'WHEN  DATA_SOURCE='BANK' THEN '人行'ELSE  '其它'END
from   TBL_PCCS_BIZ_CUST_TEL_EXPAND -------------------------------------------------------------------------------------------------------N天不通
SELECTLST_UPD_DATE,  SUM(EFFECTFLAG) AS STATUS
FROM(   SELECT DISTINCT  LST_UPD_DATE,(    CASEWHEN TEL_CODE IN ('MESS','LESD', 'LESP', 'LESS','LESK',  'LESR','LESF','LESC''LESX','PTP', 'PTPD','PTPP', 'PTPS', 'PTPK','PTPR','PTPF', 'PTPC','PTPX','ALPA','QUIT','OOOC', 'FEE','REGO','MOVE','MEET','REST','WORK','ONTK','INSY','NOIN','KNOW','CUT','DLYD','DLYP','DLYS','DLYF','DLYC','DLYX','BRKD', 'BRKP','BRKS','BRKK','BRKR','BRKF','BRKC', 'BRKX', 'CHEK','IIVR','REP')THEN 1   ELSE 0END) AS EFFECTFLAGFROM   TBL_PCCS_BIZ_ACT_TC  WHERE    CASE_ID = 120160823000081758 )
GROUP BY  LST_UPD_DATE  ORDER BY   LST_UPD_DATE DESC WITH ur-----------------------------------------------------------------------------------------------------SELECT   LST_UPD_DATE,  SUM(EFFECTFLAG) AS STATUS
FROM(  SELECT DISTINCT   LST_UPD_DATE,--对两个字段去重复
            (CASEWHEN MOVE_CODE IN ('XZDK','QXDK','XZZB', 'QXZB')THEN 1     ELSE 0END) AS EFFECTFLAGFROM   TBL_PCCS_BIZ_ACT_ACTIONWHERE   CASE_ID = 120160823000081756)
GROUP BY   LST_UPD_DATE ORDER BY  LST_UPD_DATE DESC WITH ur-----------------------------------------------------------------------------------------------------values date('2015-12-03');
values  substr(char('2015-12-03'),9,2);-- 数据库下标是重1开始的 截取2位
values substr(char('2015-02-30'),1,8);----------------------------------------------------------------------------------------------------- SELECT   B.*
FROM(  SELECT   A.*,(    CASEWHEN STATEMENT_DATE_STR > (  SELECT  SUBSTR(CHAR(BATCH_DATE),9,2) FROM TBL_PCCS_CONF_GL_GLOBAL )THEN(  SELECT  SUBSTR(CHAR(BATCH_DATE + 1 MONTH),1,8) || A.STATEMENT_DATE_STRFROM TBL_PCCS_CONF_GL_GLOBAL )ELSE(  SELECT   SUBSTR(CHAR(BATCH_DATE),1,8) || A.STATEMENT_DATE_STRFROM  TBL_PCCS_CONF_GL_GLOBAL )END) AS CYCLE_DAYFROM   TBL_PCCS_BIZ_CASE_CASEMAIN AWHERE   value(A.EVER_COLL_OPER_ID,'') <> ''AND CENTER_NO = '027'  AND QUEUE_ID = 'T0101'  AND CASE_AMT >= 0.0 AND CASE_ID =120160823000081758) B
WHERE  (   SELECT  BATCH_DATE + 1 days   FROM  TBL_PCCS_CONF_GL_GLOBAL) < B.CYCLE_DAY WITH ur-----------------------------------------------------------------------------------------------------SELECTA.CITY AS AREA_CODE,A.ACT_ORG_ID,TO_CHAR(A.DEPUTE_DATE,'yyyymm') AS OA_DATE,( CASEWHEN A.CURRENCY = '840'THEN A.RECOVERY_AMT*4141ELSE A.RECOVERY_AMTEND) AS ACHIEVE_AMT
FROM   TBL_PCCS_BT_OPT_OAPMT A-----------------------------------------------------------------------------------------------------DELETE
FROMWBCL_USR.TBL_PCCSWB_TMP_BIZ_CUST_TEL CS
WHERECS.TEL_NO not IN(SELECT  MAX(G.TEL_NO)FROM  WBCL_USR.TBL_PCCSWB_TMP_BIZ_CUST_TEL GGROUP BYG.CUST_NO,G.PHONE)-----------------------------------------------------------------------------------------------------    SELECT    *
FROM(SELECT   CUST_NO,  CERT_NO, count numFROM    TBL_PCCS_BIZ_CUST_CUSTOMER  GROUP BY    CUST_NO,    CERT_NO) as T where T.num>2------------------------------------------------------------------------------------------------------- 67897987  截取，从倒数第二位开始截取，截取两位  为87 一个参数就是从开始位置截取到最后
--db2 下标是从1开始的
select  substr(cust_no,length(cust_no)-1,2) from TBL_PCCS_BIZ_TMP_HANDWORK_CREDITL
select   substr(DEPUTE_DATE,3, 2)||substr(DEPUTE_DATE,6,2)||substr(DEPUTE_DATE,9,2) from  TBL_PCCS_BIZ_CASE-- Right(CUST_NO,2) 获取倒数2位数 如0019719809655 结果 55 ;select cust_no,Right(CUST_NO,2),left(cust_no,2)  from tbl_pccs_biz_case_casemain where case_id=120151021--从右边开始截取到7位
select   right(DEPUTE_DATE, 7) from  TBL_PCCS_BIZ_CASE_OUTAGREE
--从左边开始截取到7位
select   LEFT(DEPUTE_DATE, 7) from  TBL_PCCS_BIZ_CASE_OUTAGREE------------------------------------------------------------------------------------------------------- to_char 将其他类型的时间转换为指定格式的日期时间
select * from  TBL_PCCS_BIZ_TMP_HANDWORK_CREDITL where to_char(current timestamp,'yyyy-MM-dd') ='2012-2-12'select DEPUTE_ORG_ID,OUTS_HAND_CNT,CUR_OA_CASE_AMT,TO_CHAR(A.DEPUTE_DATE,'yyyymm') AS oa_month from TBL_PCCS_BIZ_CASE_OUTAGREE_HIS A-- to_date 将字符串日期转化为指定格式的日期时间
select * from  TBL_PCCS_BIZ_TMP_HANDWORK_CREDITL where to_date('2012-02-12','yyyy-MM-dd') ='2012-2-12'
INSERT INTO TBL_PCCS_CONF_OA_OUTCA (LST_UPD_DATE) values(to_date('1991-02-14','yyyy-MM-dd'));select  * from TBL_PCCS_BIZ_CUST_TEL
--trim 为去空 length 为长度
SELECT length(trim(PHONE)) FROM TBL_PCCS_BIZ_CUST_TEL WHERE PHONE='12345678910'
select * from TBL_PCCS_BT_DEDUCT_DETAIL  where length(trim(DEBIT_CARD_NO)) <= 21 order by BRANCH_ORG asc-----------------------------------------------------------------------------------------------------SELECT T.*
FROM dbcl_usr.TBL_PCCS_BIZ_APPR_OAORGCHG T WHERE  T.APPR_TYPE= 'ORG'AND T.APPR_STATUS='PASS' AND T.STATUS='Y'
AND T.appr_ser_no IN(SELECT  MAX(G.appr_ser_no)FROM  dbcl_usr.TBL_PCCS_BIZ_APPR_OAORGCHG GWHERE  LST_UPD_DATE = DATE('2015-12-31')GROUP BY G.case_id)
AND NEW_COLL_ORG IS NOT NULL
AND NEW_COLL_ORG <>''    select DIRE_COLL_CNT as 直催 ,PACKAGE_CNT as 打包 ,LAW_CNT as 司法,BEF_DEPUTE_CNT as 委前 from TBL_PCCS_BIZ_CASE_CASEMAINselect h.case_id,h.cust_id from TBL_BT_TMP_HOST h where IN_QUEUEID = 'T' and OUT_QUEUEID in ('O0100','O0100')UPDATE pccs_case_casemain
SET PRE_DAY_FLAG = 'Y', UPDATE_DATE = '2012-1-12',UPDATE_TIME = CURRENT TIMESTAMP,UPDATE_USER = 'SYSTEM'
WHERE  QUEUEID IN( 'O0500', 'O0601') AND ( date('2012-2-12') +5 DAY) >= OA_CASE_DEADLINE;-- (current date + 5 day )  ------------------------------------------------------------------------------------------------------- ROW_NUMBER() OVER() AS ROW_NEXT   增加行号，从1开始
select case_id,cust_no,cust_name,crt_time ,ROW_NUMBER() OVER () AS ROW_NEXT from TBL_PCCS_BIZ_CASE_CASEMAIN -- ROW_NUMBER() OVER (ORDER BY 字段column ) AS rownum 增加行号，按某列排序
select row_number() OVER (ORDER BY  LST_UPD_DATE DESC) AS ROW_NEXT,t.* from TBL_PCCS_BIZ_CASE_CASEMAIN  t--DB2 分页
select * from (select ROW_NUMBER() OVER (ORDER BY LST_UPD_DATE DESC) AS ROWNUM,CASE_ID,CUST_NO,CENTER_NO,QUEUE_ID FROM TBL_PCCS_BIZ_CASE_CASEMAIN )  A
WHERE ROWNUM >20 AND ROWNUM<=30-----------------------------------------------------------------------------------------------------   --查看表结构
select * from sysibm.columns where table_schema='DBCL_USR' and table_name='TBL_PCCS_BIZ_CASE_CASEMAIN';--修改变名字
RENAME  TABLE 表名 TO 新表名--增加子增长
alter table mafenglei alter column OA_CASE_PROTL_DL_LOG_ID set generated by default as identity
--增加一列
alter table mafenglei add column address varchar(20)
alter table  DBCL_USR.TBL_PCCS_BIZ_CUST_SMISORG add column CRT_TIME   TIMESTAMP not null  default CURRENT TIMESTAMP;
alter table  DBCL_USR.TBL_PCCS_BIZ_CUST_SMISORG add column LST_UPD_DATE   DATE     not null  default CURRENT DATE;
alter table  DBCL_USR.TBL_PCCS_BIZ_CUST_SMISORG add column LST_UPD_USER   VARCHAR(32) not null  default 'SYSTEM';
alter table  DBCL_USR.TBL_PCCS_BIZ_CUST_SMISORG add column SCR_LEVEL      CHAR(2)     not null  default '00';
--删除一列
alter table TBL_PCCS_BT_IMP_CSWF_PRE2 drop column lst_upd_date--修改表字段类型
-- 其它数据库中
alter table 表名 alter column  update_user varchar(20)--da2 数据库中
alter table  table_name alter column column_nmae set data type  type
-- 如： alter table  T alter column QUEUEID set data type   varchar(50)--OR用法 用OR要注意  括号
select * from TBL_PCCS_BIZ_CASE_CASEMAIN  where QUEUE_ID ='O0704'
and DEPUTE_ORG_ID is not null and (EVER_COLL_OPER_ID is null  OR TEMP_COLL_OPER_ID is null )SELECT * FROM TBL_PCCS_CONF_GL_CASENOTES WHERE (SOURCE_QUEUE = 'O0300' OR SOURCE_QUEUE = '*') ------------------------------------------------------------------------------------------------------- move_code <> '’ 是等于空，等于NNULL的数据都包括在内
select A.case_id from TBL_PCCS_CASE_GRADECODE A  where  A.move_code <> ''   with ur--coalesce函数  如果OTH_LINKMAN_PH_LOSS_TY 没有值就返回3
select coalesce(OTH_LINKMAN_PH_LOSS_TY,3,4,5) from TBL_PCCS_CUST_NOCONINFO-----------------------------------------------------------------------------------------------------SELECTA.CASE_ID, A.CUST_NO, A.CRD_HLR_PHON_IN_VALI_TP,A.CRD_HLR_C_TEL_IN_VALI_TP, A.CRD_HLR_H_TEL_IN_VALI_TP, A.OTH_LINKMAN_PH_LOSS_TY,B.QUEUE_ID,B.DELINQUENT_BUCKET, B. CASE_AMT
FROM(SELECTCASE_ID,  CUST_NO, CRD_HLR_PHON_IN_VALI_TP, CRD_HLR_C_TEL_IN_VALI_TP,CRD_HLR_H_TEL_IN_VALI_TP, OTH_LINKMAN_PH_LOSS_TYFROM  TBL_PCCS_CUST_NOCONINFO ) AS A,(SELECTCASE_ID, CUST_NO,  QUEUE_ID,DELINQUENT_BUCKET, CASE_AMT  FROM    TBL_PCCS_BIZ_CASE_CASEMAIN　WHERE QUEUE_ID IN ('R0101',  'R0102')) B
WHERE  A.CASE_ID = B.CASE_ID AND A.CUST_NO = B.CUST_NO WITH ur
------------------------------------------------------------------------------------------------------SELECT a.CUST_NO, a.PHONE , a.DIAL_TIME, b.CONF_CODE_NAME
FROM TBL_PCCS_BT_IMP_DAILERCONSQ a,TBL_PCCS_CONF_AUTODIAL_DISPOSITION b
WHERE a.DIAL_RESULT=INT(b.CONF_CODE) ORDER BY a.CUST_NO , a.DIAL_TIME-----------------------------------------------------------------------------------------------------INSERT INTO  TBL_PCCS_BT_TMP_INFORCA(   CASE_ID,CENTER_NO,  QUEUE_ID,  CASE_AMT,  DELINQUENT_BUCKET,  LST_UPD_DATE )
SELECTCASE_ID, CENTER_NO, QUEUE_ID, CASE_AMT, DELINQUENT_BUCKET,  CURRENT DATE AS LST_UPD_DATE
FROM   TBL_PCCS_BIZ_CASE_CASEMAIN C
WHERE  VALUE(EVER_COLL_OPER_ID,'')= ''
AND EXISTS(SELECT  1  FROM   TBL_PCCS_CONF_GL_CACOL AWHERE     A.DIV_TYPE = 'MDFY'   AND A.QUEUE_ID = C.QUEUE_ID  AND A.CENTER_NO = C.CENTER_NO)-----------------------------------------------------------------------------------------------------insert into TBL_PCCS_BIZ_TMP_ASSIGEN_PLANS_WB (OA_ORG_ID,CASE_AREA ) (select OA_ORG_ID ,CASE_AREA from TBL_PCCS_BIZ_ASSIGEN_PLANS_WB)-----------------------------------------------------------------------------------------------------SELECT a.CASE_ID, a.NEW_COLL_ORG, a.COLL_WAY, a.ASSIGN_COLL_OPER_ID FROM TBL_PCCS_BIZ_APPR_OAORGCHG a
INNER JOIN  TBL_PCCS_BIZ_CASE_CASEMAIN b ON a.CASE_ID = b.CASE_ID AND b.QUEUE_ID = ''
WHERE a.APPR_SER_NO IN(SELECT   MAX(APPR_SER_NO) APPR_SER_NOFROM TBL_PCCS_BIZ_APPR_OAORGCHGWHERE  APPR_DATE = CURRENT DATE AND APPR_STATUS = 'PASS'  GROUP BY CASE_ID)
-----------------------------------------------------------------------------------------------------
SELECT * from  TBL_PCCS_BIZ_CASE_CASEMAIN where create_time >= '2015-09-10 00:00:00'UPDATE PCCS_CUST_SMISSTAFF SET USERID = 'SCO'||'STAFF_ID'   SELECT CASEID FROM PCCS_ACT_ACTION WHERE EXISTS(SELECT 1 FROM TEMP_HIS_PCCS_CASE_CASEMAIN A WHERE A.CASEID=PCCS_ACT_ACTION.CASEID
)
-----------------------------------------------------------------------------------------------------
select A.case_id , A.rank_code, A.move_code,A.queueid from TBL_PCCS_CASE_GRADECODE A
where  A.id_pccs in(select max(id_pccs) from TBL_PCCS_CASE_GRADECODE group by case_id)-----------------------------------------------------------------------------------------------------
--  AND VALUE(R.TEMPLATE_NO,'')     R.TEMPLATE_NO如果有值就是值本身，如果没有值，就为''
SELECTbit.CUST_NO              AS CUST_NO,MAX(bit.STRATEGY_NO)     AS STRATEGY_NO,MAX(bit.TRIAD_LETTER_ID) AS TRIAD_LETTER_ID
FROMTBL_PCCS_BT_IMP_TRIADSTR bit
WHERETRIAD_LIMIT_NO IS NOT NULL
AND TRIAD_LIMIT_NO != ''
AND EXISTS(SELECT1FROMTBL_PCCS_CONF_RL_TRIADTEMPLATE RWHERER.TRIAD_TYPE = 'MAIL'AND R.TMPLATE_TYPE = 'MAIL'AND R.TEMPLATE_NO='pppp'AND R.TRIAD_CODE = bit.TRIAD_LETTER_IDAND VALUE(R.TEMPLATE_NO,'') <> ''AND VALUE('ppppp','') <> '')
AND EXISTS(SELECT1FROMTBL_PCCS_BIZ_CASE_CASEMAIN pccWHEREpcc.CUST_NO = bit.CUST_NOAND VALUE(pcc.QUEUE_ID,'') <> 'E0100'AND value(pcc.LETTER_STOP_COLL_FLG,'') <> 'Y'AND NOT EXISTS(SELECT1FROMTBL_PCCS_CASE_CACACCT CACACCTWHEREpcc.case_id=CACACCT.case_idAND SUBSTR(bit.TRIAD_LETTER_ID,1,1)< 'pppp') )
GROUP BYbit.CUST_NO-------------------------------------------------------------------------------------------------------------
--如果指定字段就插入指定字段的值，如果不指定就插入表中的所有字段
--问题  根据连接条件 如果找到 BT_IMP_CSWF_PRE 表里存在两条数据 ，匹配 BT_IMP_CSWF_PRE2
--表中的数据就无法匹配 就会报 -788 数据重复问题 ，所要要保证 BT_IMP_CSWF_PRE 不能有重复数据
MERGE
INTOBT_IMP_CSWF_PRE2 AS CS2    -- 默认插入这个表
USINGBT_IMP_CSWF_PRE AS CS
ONCS2.ACCTID = CS.ACCTID
WHEN MATCHEDTHEN
UPDATE
SETCS2.CHEAT_TYPE = CS.CHEAT_TYPE,CS2.BRANCH_BLAME = CS.BRANCH_BLAME,CS2.COLL_MODE = CS.COLL_MODE,CS2.CSWFID = CS.CSWFID,CS2.OA_NUM = CS.OA_NUM
WHEN NOT MATCHEDTHEN
INSERT (CS2.ACCTID,CS2.CHEAT_TYPE,CS2.BRANCH_BLAME,CS2.COLL_MODE,CS2.CSWFID,CS2.OA_NUM,CARDID )VALUES(  CS.ACCTID, 'e3','name', 'CODE', 'er', null, NULL )-----------------------------------------
MERGE
INTOTBL_PCCS_BIZ_CUST_ADDR A
USING(   SELECT *  FROM TBL_PCCS_BT_IMP_ADDR WITH ur)B
ON(   A.REC_STATUS=B.REC_STATUS  AND A.CUST_NO=B.CUST_NOAND A.SYS_ADDR_TYPE=B.ADDR_TYPE  AND A.DATA_SOURCE = 'HOST'AND A.LETTER_POST_ADDR1=B.LETTER_POST_ADDR1 AND A.LETTER_POST_ADDR2=B.LETTER_POST_ADDR2AND A.REC_STATUS='0')
WHEN MATCHEDTHEN
UPDATE
SETA.LETTER_POST_ADDR1=B.LETTER_POST_ADDR1,A.LETTER_POST_ADDR2=B.LETTER_POST_ADDR2,A.MAIN_CONTACT_ADDR3=B.MAIN_CONTACT_ADDR3,A.POST_CODE=B.POST_CODE,A.BACKLETTER_FLAG=NULL,A.CITY=B.CITY,A.LST_UPD_TIME= CURRENT TIMESTAMP,A.LST_UPD_USER='SYSTEM',A.LST_UPD_DATE = '2015-11-23'
WHEN NOT MATCHEDTHEN
INSERT(A.CUST_NO,A.SYS_ADDR_TYPE,A.ADDR_TYPE,A.POST_CODE, A.LETTER_POST_ADDR1,A.LETTER_POST_ADDR2,A.MAIN_CONTACT_ADDR3,A.NAME, A.REL_WITH_CUST,A.CITY,A.DATA_SOURCE,A.BACKLETTER_FLAG,A.VISIT_SUM_CODE, A.CRT_TIME,A.CRT_USER, A.LST_UPD_TIME,A.LST_UPD_USER,A.REC_STATUS,A.SCR_LEVEL,A.LST_UPD_DATE)
VALUES(B.CUST_NO,  B.ADDR_TYPE, B.ADDR_TYPE,  B.POST_CODE, B.LETTER_POST_ADDR1,  B.LETTER_POST_ADDR2,B.MAIN_CONTACT_ADDR3,  B.NAME, B.REL_WITH_CUST, B.CITY, 'HOST', '', NULL,CURRENT TIMESTAMP,  'SYSTEM', CURRENT TIMESTAMP,  'SYSTEM',  '0',  '00','2015-2-12');    -------------------------------------------------------------------------------------------------------------select  HOUR(CURRENT TIMESTAMP),MINUTE(CURRENT TIMESTAMP) from (VALUES 2) AS TEMPLETE
-------------------------------------------------------------------------------------------------------------select * from TBL_PCCS_TEMP_TABLE--删除视图
drop view TBL_PCCS_TEMP_TABLE--创建视图
CREATE VIEW TBL_PCCS_TEMP_TABLE(CASE_ID,CUST_NO,CUST_NAME,QUEUE_ID,CENTER_NO,BRANCH_ORG,CASE_AMT,CRT_TIME,ACCT_NO
) AS
SELECT T.CASE_ID,T.CUST_NO,T.CUST_NAME,T.QUEUE_ID,T.CENTER_NO,T.BRANCH_ORG,T.CASE_AMT,
T.CRT_TIME,A.ACCT_NO  FROM  TBL_PCCS_BIZ_CASE_CASEMAIN T
LEFT JOIN TBL_PCCS_BIZ_CASE_ACCT A ON T.CASE_ID = A.CASE_ID
WHERE A.ACCT_NO <>''---------------------------------------------------------------------------------------------------------------创建索引
CREATE INDEX searc ON mafenglei(age)
CREATE INDEX 索引名 ON 表名(指定的列)
--删除索引
DROP INDEX searc --创建序列
CREATE SEQUENCE MAFENGLEI_SQL
--查询下一个序列
VALUES(MAFENGLEI_SQL.nextval)
--删除序列
DROP SEQUENCE MAFENGLEI_SQL
--使用序列插入数据
INSERT  INTO mafenglei(id_pccs,name,age,saralery,monery,birthday)
values(MAFENGLEI_SQL.nextval,'小马',25,4500.30,5000,'2015-12-30')##*****************以下都是MYSQL中的操作*********************************************************************
##*****************MySQL_数据分页查询（limit用法）***********************************************************##当前股票前26天的历史行情数据
SELECT h.tick,h.dt,h.OPEN,h.high,h.low,h.CLOSE,h.vol,h.amount,h.t_rate
FROM  hq_price h
LEFT JOIN hq_stock_tp t
ON h.tick =t.tick AND h.dt=t.dt
WHERE h.tick='002075'  AND t.dt IS NULL AND h.dt <='2015-02-27'
ORDER BY dt DESC  LIMIT 26##取前5条数据
SELECT * FROM hq_stock_tp LIMIT 0,5
## 或 SELECT * FROM hq_stock_tp LIMIT 5   ##取第11条到第15条数据，共5条
SELECT * FROM hq_stock_tp LIMIT 10,5  ##取出2540后面的20条数据 ,就是一页20条 当前是2540/20= 127 页
##可以让页面一页显示50条 ，查找5页的时候就是 50*5 = 250，就是 limit 250,50
select * from kam.topic_hp_news  limit 2540,20-------------------------------------------------------------------------------------------------------------select * from kam.event_timeline where abbr like concat("%",'中',"%")##将字符串转化为数字再排序
SELECT * FROM topic_hp_show WHERE `date`='20180322' ORDER BY CONVERT(idx,SIGNED) ASC##***********************************************************************************************************CREATE TABLE `equity_bonus_jc` (`id`          bigint(10) UNSIGNED NOT NULL AUTO_INCREMENT, ##unsigned表示无负号的意思，也就是非负数，只用于整型`secu`        VARCHAR(20)      NOT NULL     COMMENT '' ,`exrdt`       DATE             NOT NULL     COMMENT '除权除思日',`givsr`       DECIMAL(15,6)    DEFAULT NULL COMMENT '运转比列',`bns`         DECIMAL(15,6)    DEFAULT NULL COMMENT '派息比例',`amou`        DECIMAL(15,6)    DEFAULT NULL COMMENT '',`aft_bns`     DECIMAL(15,6)    DEFAULT NULL COMMENT '',`sid`         VARCHAR(20)      DEFAULT NULL COMMENT '',`y`           VARCHAR(10)      DEFAULT NULL COMMENT '',`givsr_stock` DECIMAL(15,6)    DEFAULT NULL COMMENT '送股比例',`givsr_transf`DECIMAL(15,6)    DEFAULT NULL COMMENT '转增比例', `tpsj`        INT(11)          NOT NULL     COMMENT '',`upt`         TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ,`date`        char(10)     comment '交易日期',PRIMARY KEY (`id`),UNIQUE KEY `dt_secu` (`exrdt`,`secu`),KEY `secu_dt` (`secu`,`exrdt`)
) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT COMMENT='停牌信息记录表'-------------------------------------------------------------------------------------------------------------CREATE TABLE `topic_hp_news` (`id` int(20) unsigned NOT NULL AUTO_INCREMENT,`objectid` varchar(50) DEFAULT NULL,`url` varchar(200) DEFAULT NULL,`sum` text,`t` varchar(400) DEFAULT NULL,`key` varchar(20) DEFAULT NULL,`dt` varchar(30) DEFAULT NULL,`com` text,`update_time` datetime DEFAULT NULL,`insert_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=112440 DEFAULT CHARSET=utf8CREATE TABLE `corpus_param` (`id` int(11) NOT NULL AUTO_INCREMENT,`corpus_id` int(11) DEFAULT NULL COMMENT '语料外键id',`name` varchar(100) DEFAULT NULL COMMENT '参数名称',`entity_type` varchar(100) DEFAULT NULL COMMENT '实体类型',`value` varchar(100) DEFAULT NULL COMMENT '参数值',PRIMARY KEY (`id`),KEY `curpos_id_index` (`corpus_id`),CONSTRAINT `FK_Reference_13` FOREIGN KEY (`corpus_id`) REFERENCES `corpus` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8 COMMENT='用户提问参数'-------------------------------------------------------------------------------------------------------------
##删除一列
ALTER TABLE TBL_PCCS_BT_IMP_CSWF_PRE2 DROP COLUMN lst_upd_date##修改表中字段名称
ALTER TABLE 表名 CHANGE 现有字段名称  修改后字段名称 数据类型
##将表nlp_dict_event中，列名update_time改为upt
ALTER TABLE nlp_dict_event CHANGE  update_time upt TIMESTAMP;
ALTER TABLE equity_bonus_jc CHANGE givsr1  givsr_stock  DECIMAL(15,6) DEFAULT NULL## 增加字段
alter table nlp_dict_event add upu VARCHAR(300)##修改字段类型
alter table nlp_dict_product modify state Int;##删除数据
delete from kam.`topic_hp_news` WHERE  id IN (112442,112440)##查看表结构
SHOW CREATE TABLE kam.topic_hot
DESC kam.topic_hot
-------------------------------------------------------------------------------------------------------------
##用Linux登录远程myql数据库
## ps aux|grep mysql
##进入mysql主目录 输入以下命令 ---> mysql -u 用户名 -p    -> 输入密码就行了

## 查看当前有哪些数据库
SHOW DATABASES;
## 使用当前数据库(ced)
USE ced;
## 查看当前有哪些表
SHOW TABLES;
-------------------------------------------------------------------------------------------------------------
##CREATE TABLE语句可以创建索引，也可以单独用CREATE INDEX或ALTER TABLE来为表增加索引##ALTER TABLE用来创建普通索引、唯一索引、主键索引。
ALTER TABLE table_name ADD INDEX index_name (column_list)
ALTER TABLE table_name ADD UNIQUE (column_list)
ALTER TABLE table_name ADD PRIMARY KEY (column_list)
##ALTER TABLE可以在同时创建多个索引,多列时各列之间用逗号分隔。##CREATE INDEX可对表增加普通索引或UNIQUE索引。
CREATE INDEX index_name ON table_name (column_list)
CREATE UNIQUE INDEX index_name ON table_name (column_list)
##具有与ALTER TABLE语句中相同的含义，索引名不可选。另外，不能用CREATE INDEX语句创建PRIMARY KEY索引。##删除索引
##可利用ALTER TABLE或DROP INDEX语句来删除索引
DROP INDEX index_name ON talbe_name
ALTER TABLE table_name DROP INDEX index_name
ALTER TABLE table_name DROP PRIMARY KEY## 查看表创建的索引
SHOW INDEX FROM kam.hq_stock_tp##删除索引
ALTER TABLE 表名 DROP FOREIGN KEY 外键（区分大小写）;
ALTER TABLE corpus_user_say_annoted DROP FOREIGN KEY corpus_user_say_annoted_ibfk_1
##添加索引
ALTER TABLE corpus_user_say_annoted  ADD FOREIGN KEY (corpus_usid) REFERENCES corpus_user_say (id); -------------------------------------------------------------------------------------------------------------

## 创建临时表
create table nlp_dict_industry_temp as select * from  nlp_dict_industry where id  in  (SELECT MAX(id) id FROM nlp_dict_industry GROUP BY NAME)## 插入临时表数据
insert into nlp_dict_industry  select * from nlp_dict_industry_temp-------------------------------------------------------------------------------------------------------------CREATE TABLE `hq_stock_tp` (`id`   INT(10)  PRIMARY KEY  AUTO_INCREMENT,`dt`   DATE         NOT NULL   COMMENT '日期',`tick` VARCHAR(20)  NOT NULL   COMMENT '股票code',`tpsj` INT(11)      NOT NULL   COMMENT '停牌天数',`upt`  TIMESTAMP    NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,UNIQUE KEY `tick` (`dt`,`tick`) USING BTREE,UNIQUE KEY `tick_dt` (`tick`,`dt`),KEY `dt` (`dt`) USING BTREE
) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT COMMENT='停牌信息记录表'## 主键不存在则insert 否 update
## ON DUPLICATE KEY UPDATE
INSERT INTO hq_stock_tp (dt, tick, tpsj) VALUES('2016-11-16','006398',10) ON DUPLICATE KEY UPDATE tpsj=VALUES(tpsj), dt ='2016-11-19'INSERT  INTO `hq_stock_tp`(`id`,`dt`,`tick`,`tpsj`,`upt`) VALUES
(94491,'1991-02-14','000001',1,'2015-09-07 10:43:01'),
(94492,'1991-02-19','000001',2,'2015-09-07 10:43:01'),
(94500,'1991-03-20','000001',6,'2015-09-07 10:43:01'),
(94501,'1991-03-21','000001',7,'2015-09-07 10:43:01'),
(94502,'1991-03-22','000001',8,'2015-09-07 10:43:01'),
(94503,'1991-03-25','000001',9,'2015-09-07 10:43:01'),
(94504,'1991-03-26','000001',10,'2015-09-07 10:43:01');##*****************一下都是ORACLE中的操作*********************************************************************
--oracle 中的分页
SELECT T.* FROM
( SELECT B.ob_seccode_0007, A.f004n_0093, A.f005n_0093, A.f012d_0093, A.ob_object_id, ROWNUM RN FROM tb_company_0093 A JOIN tb_public_0007 B ON A.ob_orgid_0093=B.ob_secid_0007 WHERE B.f003v_0007='A股' AND A.f002V_0093='A股'
) T
WHERE T.RN BETWEEN 10 AND 30select  t.* from (select f005n_0093 ,ob_object_id,rownum as rn   from  tb_company_0093
) T
where T.rn  >20    and T.rn<30
-------------------------------------------------------------------------------------------------------------select t.* from ( select textid, f002v as title, rectime as pdt, f003v as jcurl,  f004v as jcext, f006v as types,f001d as pub, rectime, modtime, rownum as rn from info3015
where textid in ( '1202075322' )
and  ( rectime>=to_date('2016-03-20','yyyy-mm-dd') and rectime<=to_date('2016-04-02','yyyy-mm-dd') or modtime>=to_date('2016-03-20','yyyy-mm-dd')
and modtime<=to_date('2016-04-02','yyyy-mm-dd') and textid='1202075322'  ) order by textid ) t
where t.rn>0 and t.rn<200
--------------------------------------------------------------------------------------------------------------- to_timestamp 可以指定更加具体的时间  如 2010-12-18 14:14:15.00005
select * from nlp_news_concept where upt between to_timestamp('2017-05-08 23:59:59.999','yyyy-mm-dd hh24:mi:ss.ff')
and to_timestamp('2017-11-11 00:00:00.0','yyyy-mm-dd hh24:mi:ss.ff')-- to_date 可以指定时分秒 如 2010-12-18 14:14:15
select * from nlp_news_concept where upt between to_date('2017-05-08 23:59:59','yyyy-mm-dd hh24:mi:ss')
and to_date('2017-11-11 00:00:00','yyyy-mm-dd hh24:mi:ss')select to_date('2016-01-01 00:00:00','yyyy-mm-dd hh24:mi:ss')-sysdate from dual;
select to_timestamp('2016-01-01 00:00:00','yyyy-mm-dd hh24:mi:ss')-systimestamp from dual;-------------------------------------------------------------------------------------------------------------
--增加一列 字段为stat
alter table orcl_train_model add stat number(4)-- 修改字段长度
alter table 表名 modify 字段名 字段类型(字段长度);-- 修改字段名称
alter table 表名 rename column 旧字段 to 新字段-- 删除字段
alter table 表名 drop column 字段;--修改表名
rename 原表名  to  新表名
rename nlp_dict_entity_xiaoma to  nlp_test--把一张表的数据导入到另一张表
insert into nlp_dict_entity SELECT * FROM NLP_DICT_ENTITY_temp--添加主键约束
alter table nlp_dict_entity  add constraint pk_nlp_dict_entity  primary key (id)
--添加唯一性约束
alter table nlp_dict_entity  add constraint constraint_id unique(id)
-- 删除约束关系
alter table nlp_dict_entity drop constraint constraint_id---------------------------------------------------------------------------------------------------------------创建中国地图表
drop table china_address
create table  china_address
(id            number(4)   not null   primary key,--主键 此时还不是自增的address_id    number(4),name          varchar2(30) not null,price         number(7,2),--小数位status        char(1), creatime      date   default sysdate  not null,upt           timestamp default current_timestamp
);--创建中国地图序列 来实现主键自增加
drop  sequence china_address_sequ
create sequence china_address_sequ  start with 1 increment by 1;--查询下一个序列
select china_address_sequ.nextval from dualselect * from china_address--插入带自增主键的sql  前提创建序列； 使用china_address_sequ.nextval来实现
insert into china_address(id,address_id,name,price,status,creatime)
values(china_address_sequ.nextval,8,'长江三角洲',2.312,'1',sysdate)-----------------------------------------------------------------------
--如果在插入语句中不调用序列来获取递增主键的话 可以用触发器来实现drop trigger china_address_increase_tr
--创建中国地图主键自增长触发器
create or replace  trigger china_address_increase_tr --触发器名称 china_address_increase_tr
before insert on china_address  -- 表的名字 china_address
for each row -- 固定语句
begin select china_address_sequ.nextval into:new.id from dual;  --触发器内容 new.id这里的id 就是表中的id字段为自增长
end;--插入  实际是用触发器来实现主键自增加
insert into china_address(address_id,name,price,status,creatime) values(8,'长江三角洲',2.312,'1',sysdate)---------------------------------------------------------------------------------------------------------------重命名
rename  nlp_dict_company to nlp_dict_company_temp
--把一张表的数据导入到另一张表
insert into nlp_dict_company SELECT * FROM nlp_dict_company_tempdrop table  nlp_dict_company;
--创建表
create tablenlp_dict_company(id number(20),code varchar2(32),abbr varchar2(128),upt timestamp,primary key (id));drop sequence seq_news_company;
--创建自增序列
create sequence seq_news_company start with 1 increment by 1;drop trigger trgr_news_company;--创建触发器 实现主键自增
create or replace trigger trgr_dict_company
before insert on nlp_dict_company
for each row
begin
:new.id := seq_news_company.nextval;
end;-------------------------------------------------------------------------------------------------------------select  ob_bondid_0067,count(*)   from  tb_bond_0067 group  by ob_bondid_0067 order by 2 desc   select to_char(OB_RECTIME_0067, 'yyyy') , count(1) from  tb_bond_0067
group by to_char(OB_RECTIME_0067, 'yyyy')   -------------------------------------------------------------------------------------------------------------
select f007d_0067          as    f007d0067,f001v_0067          as    f001v0067,f006v_0067          as    f006v0067,f002v_0067          as    f002v0067,f003v_0067          as    f003v0067,f004v_0067          as    f004v0067,f005v_0067          as    f005v0067
from  (select   rownum as rn, a.*  from tb_bond_0067  a where to_char(a.ob_rectime_0067,'yyyy-mm-dd')  between '2009-08-05'   and  '2016-08-05'   order by a.ob_object_id) b
where b.rn > 3and b.rn <= 200 order by rn
-------------------------------------------------------------------------------------------------------------
<select id="fetchJuchaoData" resultType="com.csf.ada.datashift.refactor.entity.juchao.bond.TbBond0067"><![CDATA[select ob_subid_0067       as    obsubid0067, ob_bondid_0067      as    obbondid0067,ob_bondname_0067    as    obbondname0067,ob_isvalid_0067     as    obisvalid0067,ob_object_id        as    obObjectIdfrom     (    select   rownum as rn, a.*  from tb_bond_0067  a where a.ob_rectime_0067 >= #{fromDate}  and    a.ob_rectime_0067 < #{toDate}order by a.ob_object_id) bwhere b.rn > #{startRow} and b.rn <= #{endRow} order by rn                ]]></select>
---------------------------------------------------------------------------------------------------------------1.创建索引
CREATE INDEX 索引名 ON 表名 (列名)
create index member_search on member (memberMail)
--2.创建唯一索引:
CREATE unique INDEX 索引名 ON 表名 (列名)
create unique index  member_name on member (memberName)--删除索引
drop index member_search;
-- 注：当表结构被删除时，有其相关的所有索引也随之被删除。--1. 根据索引名，查询被索引的字段:
select * from user_ind_columns where index_name=upper('member_search'); -- member_search 为索引名称--根据表名，查询一张表的所有索引信息
select * from user_indexes where table_name=upper('member')  -- member 为表名--查询表的所有列及其属性
select * from user_tab_columns where table_name=upper('member'); --member 为表名-------------------------------------------------------------------------------------------------------------
-- 修改序列的名称
--alter sequence 旧序列名称 rename to 新序列名称;
alter sequence seq_table rename to seq_table_test;-- 修改索引名称
--alter index 旧索引名称 rename to 新索引名称;
alter index index_base_stock_tick rename to indcsf_base_stock_tick;
-------------------------------------------------------------------------------------------------------------
--获取 表tb_bond_0067的建表语句
select dbms_metadata.get_ddl('TABLE','TB_BOND_0067') from dual;//这里表名要大写/*查询锁表*/
select s.username,decode(l.type, 'TM', 'TABLE LOCK', 'TX', 'ROW LOCK', NULL) LOCK_LEVEL,o.owner,o.object_name,o.object_type,s.sid,s.serial#
from gv$session s, gv$lock l, dba_objects o
where l.sid = s.sid and l.id1 = o.object_id(+) and s.username is not null;/*
USERNAME     LOCK_LEVEL     OWNER          OBJECT_NAME               OBJECT_TYPE  SID    SERIAL#
ZHAOSHANG    (null)         SYS            ORA$BASE                  EDITION      77     2036
SYS          ROW LOCK       (null)         (null)                    (null)       195    25941
ZHAOSHANG    TABLE LOCK     ZHAOSHANG      FIN_SAM_PRODUCT_ITEM_VO   TABLE        205     60915备注  ： 此时  FIN_SAM_PRODUCT_ITEM_VO 表已经被招商这个用户 锁定了
*/-- 杀掉session 释放被锁住的这张表
alter system kill session   '205,60915';-- 查看session 和session总数
select count(*) from v$session
select * from v$session--查看不同用户的连接数
select username,count(username) from v$session where username is not null group by username##*****************以下都是sql server中的操作*********************************************************************CREATE  TABLEBLOCK_MEMBER(ID           INT   NOT NULL,BLOCKTYPE    TINYINT,BLOCKCODE    NVARCHAR(50 ) COLLATE  Chinese_PRC_CI_AS,STOCKCODE    NVARCHAR(50 ) COLLATE  Chinese_PRC_CI_AS,USESTATUS    TINYINT,BEGINDATE    INT,ENDDATE      INT,TMSTAMP      BIGINT,ENTRYDATE    DATETIME,CHKTMS       BIGINT,CONSTRAINT PK_BLOCK_MEMBER PRIMARY KEY (ID));
-------------------------------------------------------------------------------------------------------------
--sql server 中的分页
selectpre_rpt_id          as   prerptid,reliability         as   reliability,entrydate           as   entrydate,entrytime           as   entrytime,tmstamp             as   tmstamp,cmb_rpt_id          as   cmb_rpt_idfrom (select  *,row_number() over(order by pre_rpt_id asc) as rt  from t_pre_reliabilitywhere entrydate > '1900-01-01' and  entrydate <= '2016-07-27') bwhere b.rt > 10 and b.rt <= 200-------------------------------------------------分页
select * from (select *,row_number() over(order by PRE_RPT_ID  asc) as rt from (select  PRE_RPT_ID  from   t_pre_reliability where left(convert(varchar(24),entrydate,112),8) like '20120214%') as b
) as a where a.rt>0 and a.rt<= 1000-------------------------------------------------------------------------------------------------------------select id        as id,blocktype as blocktype ,blockcode as blockcode ,stockcode as stockcode ,usestatus as usestatus,begindate as begindate,enddate   as enddate,tmstamp   as tmstamp,entrydate as entrydate,chktms    as  chktmsfrom (select  *,row_number() over(order by id asc) as rt  from block_memberwhere entrydate > #{fromDate} and  entrydate <= #{toDate}) bwhere b.rt > #{startRow} and b.rt <= #{endRow} select count(*)  from  con_forecast_idx where entrydate > '2015-07-27' and    entrydate >= '2015-07-27'-------------------------------------------------------------------------------------------------------------
-- 112  yyyyMMdd
-- 120  yyyy-MM-dd hh:mm:ss
-- 将 entrydate字段 从Timestamp 类型 的转为string类型的
select convert(varchar(24),entrydate,120) from t_pre_reliability
--将时间进行转化，然后模糊查询
select  count(*)  from  t_pre_reliability where left(convert(varchar(24),entrydate,112),8) like '20170109%'
select top 3 * from t_pre_reliability