我正在修复以前的开发人员存储过程，该过程旨在根据字符串匹配条件加入一堆表，然后搜索联接表并返回信息以及信息匹配方式的描述。
该过程当前查看连接表中的每一列，当它找到匹配项时，它会在结果表中创建一个新行并转到源表中的下一列。问题是当一行中有多个匹配时，第一次匹配后的任何内容都不会产生。
我需要一张像这样的表：
----A---B---C---D---E---F---G---H---I---
| |
1.-------------------------------------|
| N Y Y N N N N N N |
2.--------------------------------------
| Y N N N N N N N N |
3.--------------------------------------
| N Y N N Y Y N N N |
----------------------------------------
得到一个表：
----A---B---C---D---E---F---G---H---I---
| |
1.--------------------------------------
| found a match in row 1-B |
2.--------------------------------------
| found a match in row 1-C |
3.--------------------------------------
| found a match in row 2-A |
4.--------------------------------------
| found a match in row 3-B |
5.--------------------------------------
| found a match in row 3-E |
6.--------------------------------------
| found a match in row 3-F |
----------------------------------------
是否有更有效的方法来查找所有匹配项，而不是为每个需要检查的列创建单独的例程。我被告知游标可以解决问题，但这个查询已经花了相当多的时间来运行。
如果它有帮助，这是原始程序：
SELECT
CASE WHEN (rpfname LIKE @SearchString OR rplname LIKE @SearchString) AND rlrelcode = 'A' THEN 2
WHEN ((rpfname LIKE @SearchString OR rplname LIKE @SearchString) AND (rlrelcode LIKE 'c%' OR rlrelcode LIKE 'REL%' OR rlrelcode = 'E')) OR clname1 LIKE @SearchString OR clname2 LIKE @SearchString OR clcontact LIKE @SearchString OR clrefer LIKE @SearchString OR mcontact LIKE @SearchString THEN 3
ELSE 1 END AS type,
ISNULL(CAST(mmatter AS VARCHAR(100)), '<Matter does not exist>') AS client_matter_number,
clnum,
mdesc1 AS matter_description,
ISNULL(mbillaty, udvalue) AS ttk,
ISNULL(mopendt, clopendt) AS open_date,
mclosedt AS close_date,
LTRIM(ISNULL(clname1, '') + ISNULL(' ' + clname2, '')) AS client_name,
CASE WHEN (rpfname LIKE @SearchString OR rplname LIKE @SearchString ) THEN LTRIM(ISNULL(rpfname, '') + ISNULL(' ' + rplname, ''))
WHEN rddesc LIKE @SearchString THEN LTRIM(rddesc )
WHEN (clname1 LIKE @SearchString OR clname2 LIKE @SearchString ) THEN LTRIM(ISNULL(clname1, '') + ISNULL(' ' + clname2, ''))
WHEN clcontact LIKE @SearchString THEN LTRIM(clcontact)
WHEN clrefer LIKE @SearchString THEN LTRIM(clrefer)
WHEN cddesc LIKE @SearchString THEN LTRIM(cddesc)
WHEN mname LIKE @SearchString THEN LTRIM(mname)
WHEN mdesc1 LIKE @SearchString THEN LTRIM(mdesc1)
WHEN mddesc LIKE @SearchString THEN LTRIM(mddesc)
WHEN mcontact LIKE @SearchString THEN LTRIM(mcontact)
WHEN fdesc1 LIKE @SearchString THEN LTRIM(fdesc1)
WHEN fdnarr LIKE @SearchString THEN LTRIM(fdnarr)
WHEN subdesc1 LIKE @SearchString THEN LTRIM(subdesc1)
WHEN subnarr LIKE @SearchString THEN LTRIM(subnarr) END AS found_search_string,
CASE WHEN rpfname LIKE @SearchString OR rplname LIKE @SearchString THEN dbo.stcGetRelationNarrative(rlindex)
ELSE '' END AS notes,
CASE WHEN (rpfname LIKE @SearchString OR rplname LIKE @SearchString) THEN rlrelation
ELSE '' END AS relationship,
CASE WHEN (rpfname LIKE @SearchString OR rplname LIKE @SearchString) AND rlrelcode = 'A' THEN 'A'
WHEN ((rpfname LIKE @SearchString OR rplname LIKE @SearchString) AND (rlrelcode LIKE 'c%' OR rlrelcode LIKE 'REL%' OR rlrelcode = 'E')) OR clname1 LIKE @SearchString OR clname2 LIKE @SearchString OR clcontact LIKE @SearchString OR clrefer LIKE @SearchString OR mcontact LIKE @SearchString THEN 'CF'
ELSE '?' END AS relation_code,
CASE WHEN (rpfname LIKE @SearchString OR rplname LIKE @SearchString ) THEN 'RP Name'
WHEN rddesc LIKE @SearchString THEN 'RP Narrative'
WHEN (clname1 LIKE @SearchString OR clname2 LIKE @SearchString) THEN 'Client Name'
WHEN clcontact LIKE @SearchString THEN 'Client Contact'
WHEN clrefer LIKE @SearchString THEN 'Client Referral'
WHEN cddesc LIKE @SearchString THEN 'Client Narrative'
WHEN mname LIKE @SearchString THEN 'Matter Name'
WHEN mdesc1 LIKE @SearchString THEN 'Matter Description'
WHEN mddesc LIKE @SearchString THEN 'Matter Narrative'
WHEN mcontact LIKE @SearchString THEN 'Matter Contact'
WHEN fdesc1 LIKE @SearchString THEN 'Folder Description'
WHEN fdnarr LIKE @SearchString THEN 'Folder Narrative'
WHEN subdesc1 LIKE @SearchString THEN 'Submatter Description'
WHEN subnarr LIKE @SearchString THEN 'Submatter Narrative' END AS source_of_information
FROM crlparty rp WITH (NOLOCK)
LEFT OUTER JOIN
crllink r WITH (NOLOCK)
ON r.rpindex = rp.rpindex
FULL OUTER JOIN
matter m WITH (NOLOCK)
ON rlmatter = m.mrelated
LEFT OUTER JOIN
mattdesc md WITH (NOLOCK)
ON m.mmatter = md.mmatter
FULL OUTER JOIN
client c WITH (NOLOCK)
ON ISNULL(m.mclient, r.rlclnum) = c.clnum
LEFT OUTER JOIN
clidesc cd WITH (NOLOCK)
ON c.clnum = cd.clnum
LEFT OUTER JOIN
crldesc rpd WITH (NOLOCK)
ON rpd.rpindex = r.rpindex
LEFT OUTER JOIN
udf u WITH (NOLOCK)
ON u.udjoin = c.clnum AND
u.udfindex=40
FULL OUTER JOIN
folder f WITH (NOLOCK)
ON m.mmatter = f.fmatter
LEFT OUTER JOIN
foldnarr fn WITH (NOLOCK)
ON f.findex = fn.findex
FULL OUTER JOIN
submatter s WITH (NOLOCK)
ON r.rlmatter = s.smatter
LEFT OUTER JOIN
subnarr sn WITH (NOLOCK)
ON s.sindex = sn.sindex
WHERE (rp.rpfname LIKE @SearchString OR rp.rplname LIKE @SearchString ) OR
rpd.rddesc LIKE @SearchString OR
(c.clname1 LIKE @SearchString OR c.clname2 LIKE @SearchString ) OR
c.clcontact LIKE @SearchString OR
c.clrefer LIKE @SearchString OR
cd.cddesc LIKE @SearchString OR
m.mname LIKE @SearchString OR
m.mdesc1 LIKE @SearchString OR
md.mddesc LIKE @SearchString OR
m.mcontact LIKE @SearchString OR
f.fdesc1 LIKE @SearchString OR
fn.fdnarr LIKE @SearchString OR
s.subdesc1 LIKE @SearchString OR
sn.subnarr LIKE @SearchString
答案 0 :(得分：0)
我确信有更有效的方法，而且我不能完全确定大局 - 但只是简单地回答问题＆＃34;我需要一张像...这样的表来导致＆＃ 34;这是一个快速而又肮脏的
SELECT ID, 'Found a match in row ' + CAST(Id as varchar(8))+ '-A' FROM YOURTABLE WHERE A = 'Y'
UNION ALL SELECT ID, 'Found a match in row ' + CAST(Id as varchar(8))+ '-B' FROM YOURTABLE WHERE B = 'Y'
UNION ALL SELECT ID, 'Found a match in row ' + CAST(Id as varchar(8))+ '-C' FROM YOURTABLE WHERE C = 'Y'
答案 1 :(得分：0)
我最终将所有逻辑从存储过程移动到应用程序。存储过程只是简单地连接表并做了一些简单的过滤器。然后我使用应用程序（C＃）返回我想要的结果。