SQL HIVE Conversion - sql

Question

I'm trying to convert a piece of SQL code to HiveQL, and it's not working as expected.
Please find below the code snippet in SQL that I'm attempting to convert:
SQL Code:
UPDATE
C
SET
C.prod_l = P.prod_l, C.numprod = P.numprod, C.prod_cng = P.prod_cng
FROM
[cnc].dbo.[c_cnc_analysis] C
LEFT JOIN
(
SELECT
X.*,
Len(prod_l) - Len(Replace(prod_l, ' ~ ', ' ')) + 1 AS NumProd,
CASE
WHEN
Len(prod_l) - Len(Replace(prod_l, ' ~ ', ' ')) + 1 = 1
THEN
0
ELSE
1
END
AS PROD_CNG
FROM
(
SELECT DISTINCT
ST2.uitid,
Substring((
SELECT
' ~ ' + ST1.product_id AS [text()]
FROM
(
SELECT
[uitid],
[product_id]
FROM
dbo.[c_cnc_dedup_bse]
GROUP BY
[uitid],
[product_id]
)
ST1
WHERE
ST1.uitid = ST2.uitid
ORDER BY
ST1.uitid FOR xml path ('')), 4, 1000 ) [PROD_L]
FROM
(
SELECT
[uitid],
[product_id]
FROM
dbo.[c_cnc_dedup_bse]
GROUP BY
[uitid],
[product_id]
)
ST2
)
X
)
P
ON C.uitid = P.uitid;
Converted HIVE Query:
create
or replace view prd_temp as
SELECT
`UITID`,
`PRODUCT_ID`
FROM
`C_CNC_DEDUP_BSE`
GROUP BY
`UITID`,
`PRODUCT_ID`;
create
or replace view prd_temp2 as
SELECT
`UITID`,
`PRODUCT_ID`
FROM
`C_CNC_DEDUP_BSE`
GROUP BY
`UITID`,
`PRODUCT_ID`;
create
or replace view prd_temp3 as
SELECT
st1.`uitid`,
concat(' ~ ', st1.`PRODUCT_ID`) AS `text()`
FROM
prd_temp ST1
left join
prd_temp2 st2
on ST1.`UITID` = ST2.`UITID`
where
st1.`UITID` = st2.`UITID`
ORDER BY
ST1.`UITID`;
create
or replace view prd_temp4 as
SELECT
st1.`uitid`,
concat_ws('''', `text()`)
FROM
prd_temp3 ST1
ORDER BY
ST1.`UITID`;
create
or replace view st2 as
SELECT DISTINCT
`UITID`,
SUBSTRING(`_c1` , 4, 1000) as `PROD_L`
FROM
prd_temp4;
create
or replace view x as
SELECT
*,
LENGTH(PROD_L) - LENGTH(REPLACE(PROD_L, ' ~ ', ' ')) + 1 as NumProd,
CASE
WHEN
LENGTH(PROD_L) - LENGTH(REPLACE(PROD_L, ' ~ ', ' ')) + 1 = 1
then
0
ELSE
1
END
as PROD_CNG
from
ST2;
create table C_CNC_ANALYSIS1 as
select
c.*,
P.numprod as numprod,
p.prod_cng as prod_cng,
p.prod_l as prod_l
from
`C_CNC_ANALYSIS` C
LEFT JOIN
X P
ON C.UITID = P.UITID ;
SELECT
*
from
c_cnc_analysis1 limit 100;
Appreciate all the help with this. I think the code converted for the XML path is not working in HIVE, since I'm getting multiple UITIDs (key) and the information in separate rows rather than just one single record per UITID.
Thank You,
Viswanath Sitaraman