Teradata / 將記錄與 UNION 合並不起作用

Question

我有一個關於 UNION 的查詢。 我試圖將 2 條記錄合並為 1 條記錄。上半部分從 1 組表中獲取記錄，下半部分從一組不同的表中獲取記錄。 兩半都使用來自 2 個派生查詢的字段。 目前的結果是這樣的：

 Group             Branch               Ref NUm            GL Amt           Bank Amt
   135                 15                    1z2x3c                25.00               0.00
   135                 15                    1z2x3c                  0.00              25.00

我想看到的是：

 135                15                    1z2x3c                   25.00             25.00

我在每一半中添加了 0.00 的字段，所以我有相同數量的列，因為兩半帶回了不同的數量字段。 我還比較了所有字段及其數據類型。 如果它們不同，那么我使用 CAST 使它們相同。 我可以用 UNION 來做到這一點，還是有其他方法可以將 2 行合並為 1 行？ 我真的很感謝你的幫助。 謝謝.........

這是我開發的sql：

 with drvd_qry (operating_unit, grp_brn_id, ecr_dept_id, stn_id) as
 (select
 soh.operating_unit,
 s.grp_brn_id,
 s.ecr_dept_id,
 s.stn_id

from stns s
 inner join rfs.stn_ops_hierarchies soh on soh.stn_stn_id = s.stn_id
 where substr(s.grp_brn_id, 1, 2) = 'G1'
 group by soh.operating_unit, s.grp_brn_id, s.ecr_dept_id, s.stn_id),

qry_drvd (department, ecr_ticket_no, open_item_id, rnt_agr_nbr, monetary_amount) as

(select
 j.department,
 j.ecr_ticket_no,
 j.open_item_id,
 j.rnt_agr_nbr,
 cast(j.monetary_amount as decimal (15,2))

from
 rfs.journal_entries j

where
 j.business_unit = 'A0141'
 and j.accounting_date = cast ('23-SEP-2015' as date format 'dd-MMM-YYYY')
 and  j.account_gl = '109850')

select

bb.BU,
 bb.GPBR,
 bb.STN_ID,
 bb.DEPTID,
 cast(ft.mrchnt_nbr as decimal (20,0)) as MERCH_NUM,
 bb.TICKET_NUM,
 ft.prim_acct_frst_six_dgt_nbr as FIRST6,
 ft.prim_acct_last_four_dgt_nbr as LAST4,
 bb.AUTH_NUM,
 cast(ft.stlmt_uniq_ref_nbr as decimal (20,0)) as REF_NUM,
 bb.GL_AMT,
 bb.BANK_AMT

from

(select
 aa.bu,
 aa.gpbr,
 aa.stn_id,
 aa.deptid,
 aa.ticket_num,
 p.auth_nbr as AUTH_NUM,
 p.fin_tran_ref_id,
 aa.GL_AMT,
 CAST(0 AS DECIMAL (15,2)) as BANK_AMT

from

(select
 dq.operating_unit as BU,
 dq.grp_brn_id as GPBR,
 dq.stn_id as STN_ID,
 qd.department as DEPTID,
 qd.ecr_ticket_no as TICKET_NUM,
 qd.open_item_id,
 qd.rnt_agr_nbr,
 cast(qd.monetary_amount as decimal (15,2)) as GL_AMT

from
 qry_drvd qd,
 drvd_qry dq

where dq.ecr_dept_id = qd.department ) aa

left outer join rfs.pymts p on p.ecr_pymt_id = cast(aa.open_item_id as decimal(19,0))
 and p.ram_rea_rnt_agr_nbr = aa.rnt_agr_nbr) bb

left outer join paymt.fin_tran ft on ft.fin_tran_ref_id = bb.fin_tran_ref_id

UNION

select

b.BU,
 b.GPBR,
 b.STN_ID,
 b.DEPTID,
 cast(b.MERCH_NUM as decimal(20,0)),
 qd.ecr_ticket_no as TICKET_NUM,
 b.FIRST6,
 b.LAST4,
 b.AUTH_NUM,
 cast(b.REF_NUM as decimal(20,0)),
 b.GL_AMT,
 b.BANK_AMT

from

(select

a.BU,
 a.GPBR,
 a.STN_ID,
 a.DEPTID,
 a.MERCH_NUM,
 a.REF_NUM,
 a.FIRST6,
 a.LAST4,
 p.auth_nbr as AUTH_NUM,
 p.ecr_pymt_id,
 a.GL_AMT,
 a.BANK_AMT

from

(select
 dq.operating_unit as BU,
 dq.grp_brn_id as GPBR,
 dq.stn_id as STN_ID,
 dq.ecr_dept_id as DEPTID,
 cast(f.merch_num as varchar(20)) as MERCH_NUM,
 f.ret_ref_num as REF_NUM,
 ft.prim_acct_frst_six_dgt_nbr as FIRST6,
 ft.prim_acct_last_four_dgt_nbr as LAST4,
 CAST(0 AS DECIMAL(15,2)) as GL_AMT,

cast(case when f.tran_typ_cde = 1 then f.tran_amt
     when f.tran_typ_cde = 4 then f.tran_amt * -1
     end as decimal (15,2)) as BANK_AMT,

ft.fin_tran_ref_id

 from paymt.fndng_recncl_dtl_rprt f,
 rfs.cc_mrchnt_nbr m,
 drvd_qry dq,
 paymt.fin_tran ft
 --rfs.pymts p

where f.row_stat_cde = 'A'
 and cast (f.tran_proc_date as date format 'MM/DD/YYYY') = '09/23/2015'
 and m.mrchnt_nbr = f.merch_num
 and m.credit_card_typ = 'VI'
 and dq.stn_id = m.sta_stn_id
 and ft.stlmt_uniq_ref_nbr = f.ret_ref_num

 group by
 dq.operating_unit,
 dq.grp_brn_id,
 dq.stn_id,
 dq.ecr_dept_id ,
 f.merch_num,
 f.ret_ref_num,
 ft.prim_acct_frst_six_dgt_nbr,
 ft.prim_acct_last_four_dgt_nbr,
 GL_AMT,
 BANK_AMT,
 ft.fin_tran_ref_id) a

left outer join rfs.pymts p on p.fin_tran_ref_id = a.fin_tran_ref_id) b

left outer join qry_drvd qd on cast(qd.open_item_id as decimal(19,0)) = b.ecr_pymt_id

Answer 1

執行union然后使用group by並且因為你的虛擬字段是0使用SUM來連接兩行

  SELECT "Group", "Branch", "Ref Num", SUM("GL Amt"), SUM("Bank Amt")
  FROM ( 
       SELECT * FROM YourQuery1
       UNION ALL
       SELECT * FROM YourQuery2
      ) as t
  GROUP BY  
       "Group", "Branch", "Ref Num"

Answer 2

由於數據來自兩個不同的表，然后我相信在聯合上進行分組將無濟於事，因為不能在子查詢中使用使用 with 子句的派生表。如果可能，將此數據加載到易失性表中，然后進行分組並找到max of ("GL Amt"), ("Bank Amt") 和/或創建一個視圖，然后查詢...