Just copy and paste the whole long expressions to their second occurrences.
________________________________
From: dyuti a <hadoop.hiv...@gmail.com>
To: user@hive.apache.org
Sent: Friday, June 28, 2013 10:58 AM
Subject: Fwd: Need urgent help in hive query
Hi Experts,
I'm trying with the below SQL query in Hive, which does not support column
alias access in subsequent columns as shown below in the query. Is there any
other way to rewrite the same without using alias? any of your help are really
appreciated.
INSERT INTO CAUD
(
pst_cc
pst_no
pst_ber
pst_tkn
pst_dtm
pst_nbr
pst_cde
pst_dte
)
SELECT der.cc
der.no
der.ber
der.tkn
der.dtm
der.nbr
der.cde
der.dte
FROM (SELECT udp.cc
udp.no
udp.ber
udp.tkn
,CASE WHEN udp.SYSTEM_DTE>16000000 AND udp.SYSTEM_DTE<100000000 THEN
udp.SYSTEM_DTE
WHEN udp.DTE_OUT>16000000 AND udp.DTE_OUT<100000000 THEN udp.DTE_OUT
WHEN udp.DTE_IN>16000000 AND udp.DTE_IN<100000000 THEN udp.DTE_IN
ELSE '1231'
END AS DTE_OUT
,CASE WHEN udp.TME_OUT <> 0 THEN udp.TME_OUT
WHEN udp.TME_IN <> 0 THEN udp.TME_IN
ELSE 0
END AS TME_OUT
,TRIM(CAST(TME_OUT AS CHAR(6))) AS TME_OUT1
,CAST(CAST(SUBSTR(TRIM(DTE_OUT),1,8) AS CHAR(8)) AS DATE FORMAT
'yyyymmdd') AS DTE_OUT_O
,CASE WHEN TME_OUT>99999 THEN CAST(TME_OUT1 AS CHAR(6))
WHEN TME_OUT>9999 AND TME_OUT<=99999 THEN CAST('0'||TME_OUT1 AS
CHAR(6))
WHEN TME_OUT>999 AND TME_OUT<=9999 THEN CAST('00'||TME_OUT1 AS
CHAR(6))
WHEN TME_OUT>99 AND TME_OUT<=999 THEN CAST('000'||TME_OUT1 AS
CHAR(6))
WHEN TME_OUT>9 AND TME_OUT<=99 THEN CAST('0000'||TME_OUT1 AS
CHAR(6))
WHEN TME_OUT>0 AND TME_OUT<=9 THEN CAST('00000'||TME_OUT1 AS
CHAR(6))
WHEN TME_OUT=0 THEN '000000'
END AS TME_OUT2
,SUBSTR(TRIM(TME_OUT2),1,2)||':'||SUBSTR(TRIM(TME_OUT2),3,2)||':'||SUBSTR(TRIM(TME_OUT2),5,2)
AS
TME_OUT_O
, CAST( DTE_OUT_O||' '||TME_OUT_O AS TIMESTAMP FORMAT 'YYYYMMDD:HH:
MI:SS') AS DTM
,udp.nbr AS nbr
FROM STS_GNCAUDP udp
INNER JOIN LOAD_LOG LZ_LL ON udp.LOG_KEY=LZ_LL.LOG_KEY
INNER JOIN ESA_LOAD_LOG ESA_LL ON
LZ_LL.ESA_LOAD_LOG_KEY=ESA_LL.LOG_KEY
AND ESA_LL.PBLSH_IND='$PBLSH_IND'
AND ESA_LL.LOAD_END_DTM ='$HIGH_DATE_TIME'
AND ESA_LL.SOR_CD= '$CLM_SOR_CD'
AND ESA_LL.SUBJ_AREA_NM= '$SUBJ_AREA_NM'
AND ESA_LL.WORK_FLOW_NM= '$WORK_FLOW_NM'
QUALIFY ROW_NUMBER() OVER (PARTITION BY udp.cc,udp.pst_no,
udp.cde,udp.nbr,udp.dte,udp.LOG_KEY
ORDER BY DTM DESC)=1) AS der
;
Thanks in advance!
Dti
