SQL Server中的组

Question

我使用SQL Server 2012的下面中选择特定行是一个示例数据集

Prefix_Suffix First_Nm Last_Nm Acct_Registration_Line_1 Acct_Registration_Line_2 secondlevel TopLevel 
NULL Jane Smith NULL NULL smith1-rep abc-quarterly 
NULL John Smith NULL NULL smith1-rep abc-quarterly 
Jane Smith NULL NULL IRA FBO Jane Smith (EQUITY) PERSHING LLC AS CUSTODIAN smith1-rep abc-quarterly 
Jane Smith NULL NULL IRA FBO Jane Smith (FI) PERSHING LLC AS CUSTODIAN smith1-rep abc-quarterly 
John Smith NULL NULL IRA FBO John Smith (EQUITY) PERSHING LLC AS CUSTODIAN smith1-rep abc-quarterly 
John Smith NULL NULL IRA FBO John Smith (FI) PERSHING LLC AS CUSTODIAN smith1-rep abc-quarterly 

这个数据出现在各种序列中，有时只有行，其中First_Nm（名）和Last_Nm（姓）填充，Prefix_Suffix为NULL。有时会填充Prefix_Suffix，并且名字和姓氏字段为空。如果它是全部或全部为NULL，我可以处理。我正在努力的行是两个空方案出现在一个组中。一个组在第二级列中具有相同的值。

如果一个组内Prefix_Suffix包含一个值和姓和名都为空&也有地方名字和姓氏包含的值，Prefix_Suffix为null，则我不希望有Prefix_Sufix值的任何行的行。所以当示例数据集发生时，我想过滤它以消除Prefix_Suffix填充的4行。再次，我只希望在具有前缀_Suffix & First_nm和Last_Nm之间交替的NULLS的分组中得到这种结果。

所需的结果

Prefix_Suffix First_Nm Last_Nm Acct_Registration_Line_1 Acct_Registration_Line_2 secondlevel TopLevel 
NULL Jane Smith NULL NULL smith1-rep abc-quarterly 
NULL John Smith NULL NULL smith1-rep abc-quarterly 

这是当前select语句。我试图用UNION ALL隔离2个NULL场景，但这还不够。

WITH DATA AS 
(
SELECT *, 
COUNT(Acct_Nbr) OVER (PARTITION BY acct_nbr)AcctCount 
FROM ##temptable 
WHERE 1 = 1 
AND acct_holder_role_cd <> 'sec' 
) 
SELECT * 
INTO ##PrefixedAccounts 
FROM DATA 
WHERE AcctCount = 1 AND Last_Nm IS NULL; 
SELECT 
RcdTypId,Acct_Nbr,Acct_Short_Nm,Acct_Holder_Typ_Cd,Acct_Holder_Role_Cd, Prefix_Suffix 
,First_Nm,Middle_Nm,Last_Nm,Acct_Registration_Line_1,Acct_Registration_Line_2 
INTO ##temptable2 
FROM ##temptable 
WHERE NOT EXISTS 
(
SELECT ##PrefixedAccounts.Acct_Nbr 
FROM ##PrefixedAccounts 
WHERE ##PrefixedAccounts.Acct_Nbr = ##temptable.Acct_Nbr 
); 
WITH DATA AS 
(
SELECT 
RcdTypId,Acct_Nbr,Acct_Short_Nm,Acct_Holder_Typ_Cd,Acct_Holder_Role_Cd,Prefix_Suffix, 
NULL AS First_Nm, Middle_Nm, Last_Nm,Acct_Registration_Line_1,Acct_Registration_Line_2 
FROM ##PrefixedAccounts 
UNION ALL 
SELECT 
RcdTypId,Acct_Nbr,Acct_Short_Nm,Acct_Holder_Typ_Cd,Acct_Holder_Role_Cd,NULL AS Prefix_Suffix,First_Nm,Middle_Nm,Last_Nm, 
NULL AS Acct_Registration_Line_1,NULL AS Acct_Registration_Line_2 
FROM ##temptable2 
) 
SELECT * INTO ##ClientNames FROM DATA 
DROP TABLE ##temptable2 
DROP TABLE ##PrefixedAccounts 

-- SELECT * FROM ##ClientNames ORDER BY prefix_Suffix desc 
-- DROP TABLE ##ClientNames 

SELECT distinct 
cl.Prefix_Suffix,cl.First_Nm,cl.Last_Nm,cl.Acct_Registration_Line_1,cl.Acct_Registration_Line_2 
,at.secondlevel,at.TopLevel FROM ##ClientNames cl 
INNER JOIN ##AddeparTemplate at ON cl.Acct_nbr = at.owned 
WHERE 1 = 1 
AND (cl.Last_Nm IS NOT NULL OR cl.Acct_Registration_Line_1 IS NOT NULL) 
ORDER BY cl.prefix_suffix, at.secondlevel 
DROP TABLE ##ClientNames 

Answer 1

这是你想要的吗？

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