我尝试连接一个表中的两个字段和另一个表中的另外两个字段，并使用连接值作为主键将表连接在一起。
由于主键与示例5不同的人相关联，因此每个人需要一个唯一值，将策略编号与dep代码连接起来。
以下是如何使用MSSQL运行查询的示例（我没有包含完整代码 - 只是一个示例）。
Alter table [beneficiary] add [Unique] varchar(max)
Update [beneficiary] Set [Unique] =concat([t1.ms_fk],[t1.dep_fk])
Alter table [tsf_claim] add [Unique] varchar(max)
Update [tsf_claim] Set [Unique1] =concat([t5.ms_fk],[t5.dep_fk])
LEFT JOIN [mipbi_dbo.td_beneficiary] t5 ON t1.[Unique] = t5.[Unique1]
我需要在iReports中包含上面的内容作为最后的左连接，我不知道如何在iReports中创建额外的字段。另请注意，我的iReports是一个非常旧的版本（3.7.1）
SELECT t1.scheme_fk,t1.ms_fk,t1.dep_fk,t1.pr_fk,t1.tariff_fk,t1.icd10_fk,t1.claimed_amount,t1.benefit_amount,t1.auth_fk,t1.units,t1.paid_date,
t1.claim_date,t1.claim_code,t1.ref_pr_fk,t1.note,t1.cheque_datetime,t1.suspend_until,t1.dr_mem,t1.suspended,
t2.mem_num,t2.xref_num,
t3.icd10_pk,t3.icd10_descr,
t4.claim_code,t4.description,
t5.initials,t5.surname,
FROM mipst_dbo.tsf_claim as t1
LEFT JOIN mipst_dbo.tsf_memxref t2 ON t1. ms_fk = t2.mem_num
LEFT JOIN mipbi_dbo.td_icd10 t3 ON t1.icd10_fk = t3.icd10_pk
LEFT JOIN mipst_dbo.tsd_ccdesc t4 ON t1.claim_code = t4.claim_code::integer
LEFT JOIN mipbi_dbo.td_beneficiary t5 ON t1.ms_fk = t5.ms_pk
WHERE t1.scheme_fk = '75'
GROUP BY t1.scheme_fk,t1.ms_fk,t1.dep_fk,t1.pr_fk,t1.tariff_fk,t1.icd10_fk,t1.claimed_amount,t1.benefit_amount,t1.auth_fk,t1.units,t1.paid_date,
t1.claim_date,t1.claim_code,t1.ref_pr_fk,t1.note,t1.cheque_datetime,t1.suspend_until,t1.dr_mem,t1.suspended,
t2.mem_num,t2.xref_num,
t3.icd10_pk,t3.icd10_descr,
t4.claim_code,t4.description,
t5.initials,t5.surname
通过添加左连接＆＃39; LEFT JOIN mipbi_dbo.td_beneficiary t5 ON t1.ms_fk = t5.ms_pk＆＃39;它不是根据从属代码添加人名。它只是加入线。
简而言之，策略编号链接到具有依赖代码的不同人员，因此在加入信息时，应该将第1个dep1链接到第二个表中的dep 1，并使用正确的名称和姓氏等。
在表1中，dep 1可以说10行，所以使用当前代码，它将在10行上添加策略号的所有信息，而不仅仅是dep 1的信息。
如果上述内容已明确定义或您需要更多信息，请与我们联系。
答案 0 :(得分：0)
我只能通过
来解决查询问题
SELECT t1.scheme_fk,t1.ms_fk,t1.dep_fk,t1.pr_fk,t1.tariff_fk,t1.icd10_fk,t1.claimed_amount,t1.benefit_amount,t1.auth_fk,t1.units,t1.paid_date,
t1.claim_date,t1.claim_code,t1.ref_pr_fk,t1.note,t1.cheque_datetime,t1.suspend_until,t1.dr_mem,t1.suspended,
t2.mem_num,t2.xref_num,
t3.icd10_pk,t3.icd10_descr,
t4.claim_code,t4.description,t4.scheme_code,
t5.ms_pk,t5.dep_fk,t5.initials,t5.surname,
t6.narration,t6.key
FROM mipst_dbo.tsf_claim as t1
LEFT JOIN mipst_dbo.tsf_memxref t2 ON t1. ms_fk = t2.mem_num
LEFT JOIN mipbi_dbo.td_icd10 t3 ON t1.icd10_fk = t3.icd10_pk
LEFT JOIN mipst_dbo.tsd_ccdesc t4 ON t1.claim_code = t4.claim_code::integer
LEFT JOIN mipbi_dbo.td_beneficiary t5 ON t1.ms_fk = t5.ms_pk
LEFT JOIN mipst_dbo.tsf_note t6 ON t1.note = t6.key
WHERE t1.scheme_fk = '28' and
t4.scheme_code = '28' and
t1.ms_fk = t5.ms_pk AND
t1.dep_fk =t5.dep_fk
GROUP BY t1.scheme_fk,t1.ms_fk,t1.dep_fk,t1.pr_fk,t1.tariff_fk,t1.icd10_fk,t1.claimed_amount,t1.benefit_amount,t1.auth_fk,t1.units,t1.paid_date,
t1.claim_date,t1.claim_code,t1.ref_pr_fk,t1.note,t1.cheque_datetime,t1.suspend_until,t1.dr_mem,t1.suspended,
t2.mem_num,t2.xref_num,
t3.icd10_pk,t3.icd10_descr,
t4.claim_code,t4.description,t4.scheme_code,
t5.ms_pk,t5.dep_fk,t5.initials,t5.surname,
t6.narration,t6.key
更新where子句。