我有这两个表
f_data
(
id (int, null),
name(varchar(255), null),
control (int, null),
)
id名称控制
1255,ALMONTE JIMENEZ ADALGISA,1131238601
92,ENCARNACION PAMELA,1131237483
3376,FELIZ LUIS MANUEL,1131240995
688,HERRANDMARIÑEDEDOMEDES,1131238666
1887年,JOSE ALBERTO MATOS,1131240215
est_data
(
id(int, null),
name(varchar(255), null),
firstname(varchar(255), null),
lastname(varchar(255), null),
)
id name firstname lastname
201201255,ADALGISA,ALMONTE,JIMENEZ,
201200092,PAMELA,ENCARNACION ,,
201223376,LUIS MANUEL,FELIZ,
201200688,DIOMEDES,HERRAND,MARIÑE,
201201887,JOSE ALBERTO,MATOS ,,
和此SQL代码
select *
from est_data
where
CASE
WHEN
lastname = ' '
then
ltrim(rtrim(firstname)) + ' ' + ltrim(rtrim(name))
ELSE
ltrim(rtrim(firstname)) + ' ' + ltrim(rtrim(lastname))+' '+ltrim(rtrim(name))
END in
(Select ltrim(rtrim(name)) From f_data where id = 1887)
结果:
CASE
WHEN
lastname = ' '
then
ltrim(rtrim(firstname)) + ' ' + ltrim(rtrim(name))
ELSE
ltrim(rtrim(firstname)) + ' ' + ltrim(rtrim(lastname))+' '+ltrim(rtrim(name))
END
是'JOSE ALBERTO MATOS'
及其结果:
Select ltrim(rtrim(name)) From f_data where id = 1887
是'JOSE ALBERTO MATOS'
但代码返回0行,当名称相同时返回事件。这可能是什么问题?
注意:我们使用的是SQL Server 2000
答案 0 :(得分:2)
仔细查看您的数据。在f_data
中,您的name
值为“JOSE ALBERTO MATOS”。在est_data
,您有name
“JOSE”,firstname
“ALBERTO”和lastname
“MATOS”。
现在查看est_data
上的查询。你正在组合FIRSTNAME-LASTNAME-NAME,在这种情况下将是“ALBERTO MATOS JOSE”,它与f_data
中的值不匹配。你不会在两个地方以相同的方式订购名称。
如果你不相信我,只需运行这个简单的脚本来重新创建问题:
create table #f_data
(
id int,
name varchar(255),
control int
);
create table #est_data
(
id int,
name varchar(255),
firstname varchar(255),
lastname varchar(255)
);
insert into #f_data(id, name, control) values (1887, 'JOSE ALBERTO MATOS', 1);
insert into #est_data(id, name, firstname, lastname) values (1887, 'JOSE', 'ALBERTO', 'MATOS');
Select ltrim(rtrim(name)) From #f_data where id = 1887;
select CASE
WHEN
lastname = ' '
then
ltrim(rtrim(firstname)) + ' ' + ltrim(rtrim(name))
ELSE
ltrim(rtrim(firstname)) + ' ' + ltrim(rtrim(lastname))+' '+ltrim(rtrim(name))
END
from #est_data;
select *
from #est_data
where
CASE
WHEN
lastname = ' '
then
ltrim(rtrim(firstname)) + ' ' + ltrim(rtrim(name))
ELSE
ltrim(rtrim(firstname)) + ' ' + ltrim(rtrim(lastname))+' '+ltrim(rtrim(name))
END in
(Select ltrim(rtrim(name)) From #f_data where id = 1887);
答案 1 :(得分:0)
使用子查询:
select * from (
select e.*,
CASE
WHEN e.lastname = ' '
THEN ltrim(rtrim(e.firstname)) + ' ' + ltrim(rtrim(e.name))
ELSE ltrim(rtrim(e.firstname)) + ' '+ltrim(rtrim(e.lastname)) + ' ' + ltrim(rtrim(e.name))
END as wrappedName
from est_data e
) where wrappedName =
(select ltrim(rtrim(name))) from f_data where id = 1887)