[英]how to use two sub queries in hive
When I run below query I am getting the error. 当我在查询下面运行时,出现错误。
FAILED: SemanticException [Error 10249]: Line 13:15 Unsupported SubQuery Expression 'master_cd': Only 1 SubQuery expression is supported.
SELECT
cfs.roll_no,
max(cclas.crdm_cd) as crdm_cd,
max(cclas.kjtm_cd) as kjtm_cd
FROM cust_focus cfs
LEFT JOIN cust_class cclas
ON (cfs.CF_CLAS_NO = cclas.CLAS_NO
AND cfs.DFS_CD = cclas.DFS_CD
AND cclas.D_AREA = 'US'
AND cclas.active_flag = 'Y')
WHERE cfs.roll_no NOT IN (SELECT roll_no FROM class_hist)
AND UPPER(TRIM(cfs.D_AREA)) = 'US'
AND (cfs.master_cd IN (SELECT msk5.msk5_master_cd from msk5_mst_tbl as msk5 WHERE cfs.master_cd=msk5.msk5_master_cd and msk5_m_code=9)
OR cfs.master_cd IS NULL)
group by cfs.roll_no;
Please help me how to resolve this issue. 请帮助我如何解决此问题。
Thanks in advance. 提前致谢。
You can replace your second sub-query (SELECT msk5.msk5_master_cd from msk5_mst_tbl as msk5 WHERE cfs.master_cd=msk5.msk5_master_cd and msk5_m_code=9)
with a join 您可以使用
(SELECT msk5.msk5_master_cd from msk5_mst_tbl as msk5 WHERE cfs.master_cd=msk5.msk5_master_cd and msk5_m_code=9)
替换第二个子查询(SELECT msk5.msk5_master_cd from msk5_mst_tbl as msk5 WHERE cfs.master_cd=msk5.msk5_master_cd and msk5_m_code=9)
...
from
cust_focus cfs
...
left join msk5_mst_tbl msk5
on cfs.master_cd=msk5.msk5_master_cd
and msk5_m_code=9
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