Question

我有下表：

表1：

filename    File_ID date    version
Broker1_file_12312  5093    20180108    1
Broker1_file_1sa3e_Renamed  3956    20180108    2
Broker2_file_d3223f 3109    20180108    1
Broker2_file_j3df   4526    20180108    2
Broker2_file_dj3498_interest    3574    20180108    3
Broker3_file_fj934f 5603    20180108    1
Broker3_file_jdf34f 5225    20180108    1
Broker3_file_K9d043 5926    20180108    1
Broker4_file_c34km  4865    20180108    1
Broker5_file_cf4k3  3212    20180108    1

我需要根据条件在输出中选择'filename'和'file_ID'

文件名应与模式列表匹配，但不应包含其他模式列表中的值
版本应为最新版本，即max（version）
如果模式不匹配（错误1）或文件超过1个（错误2），则可能显示该错误。

下面的代码有效，但是我无法合并“不喜欢”功能，并选择最新版本


    SELECT t1.file_id, vals.val
    FROM
        table1 t1
        INNER JOIN  (VALUES ('Broker1'), ('Broker2'), ('Broker3'),('Broker4'),('Broker'),('Broker5')) Vals(val) 
            ON  t1.column1 LIKE '%' + vals.val + '%'

我需要一个输出，使其不选择file_ID，其中filename包含Broker1的字符串“ Renamed”和Broker2的“ interest”。另外，我需要选择最新版本。

因此从上面需要基于以下注释的输出：

filename    File_ID date    version Comment
Boker1_file_12312   4007    20180108    1   To be shown in output
Boker1_file_1sa3e_Renamed   5147    20180108    2   Not be shown in output
Boker2_file_d3223f  3496    20180108    1   Not be shown in output
Boker2_file_j3df    3880    20180108    2   To be shown in output
Boker2_file_dj3498_interest 5817    20180108    3   Not be shown in output
Boker3_file_fj934f  4541    20180108    1   Not be shown in output
Boker3_file_jdf34f  5818    20180108    2   Not be shown in output
Boker3_file_K9d043  4910    20180108    3   To be shown in output
Boker4_file_c34km   3101    20180108    1   Not be shown in output
Boker5_file_cf4k3   5209    20180108    1   Not be shown in output

最终输出：

val File_ID
Boker1  4007
Boker2  3880
Boker3  4910
Boker4  3101
Broker  error1
Broker5  error2

我正在尝试从以下代码中添加最新版本：

select file_id from table1 as t
where date = '20190108'
and filename like ('%Broker1%')
and t.version = (select max(version) from table1 as t2
where t2.date = t.date
and t2.filename like  t.filename
)

Answer 1

要过滤出文件名既不匹配模式'%Broker1%Renamed%'也不匹配模式'Broker2%interest'的Recret，您可以在查询中添加另一个JOIN。

SELECT vals.val broker_name, t1.file_id
FROM
    table1 t1
    INNER JOIN  (VALUES ('Broker1'), ('Broker2'), ('Broker3'),('Broker4')) Vals(val) 
        ON t1.column1 LIKE '%' + vals.val + '%' 
    INNER JOIN  (VALUES ('Broker1%Renamed'), ('Broker2%interest')) NotVals(val) 
        ON t1.filename NOT LIKE '%' + NotVals.val + '%'

编辑

如果您正在寻找每个经纪人的最高版本的file_id，则此查询虽然很难看，但应该可以完成工作：

WITH cte AS (
    SELECT vals.val broker_name, t1.file_id, t1.version
    FROM
        table1 t1
        INNER JOIN  (VALUES ('Broker1'), ('Broker2'), ('Broker3'),('Broker4')) Vals(val) 
            ON t1.column1 LIKE '%' + vals.val + '%' 
        INNER JOIN  (VALUES ('Broker1%Renamed'), ('Broker2%interest')) NotVals(val) 
            ON t1.filename NOT LIKE '%' + NotVals.val + '%' 
)
SELECT *
FROM 
    cte
    INNER JOIN (SELECT broker_name, MAX(version) version FROM cte GROUP BY broker_name) ctemax 
        ON ctemax.broker_name = cte.broker_name 
        AND ctemax.version = cte.version

Answer 2

只需再插入一个内部联接

SELECT t1.file_id, vals.val, max(version) over (partition by t1.file_id) version
FROM
    table1 t1
    INNER JOIN  (VALUES ('Broker1'), ('Broker2'), ('Broker3'),('Broker4')) Vals(val) 
        ON  t1.column1 LIKE '%' + vals.val + '%' 
    INNER jOIN (VALUES ('Broker1'), ('Broker2'), ('Broker3'),('Broker4')) Vals2(val) 
        ON  t1.column1 NOT LIKE '%' + vals2.val + '%'

或分组依据

SELECT t1.file_id, vals.val, max(version)
FROM
    table1 t1
    INNER JOIN  (VALUES ('Broker1'), ('Broker2'), ('Broker3'),('Broker4')) Vals(val) 
        ON  t1.column1 LIKE '%' + vals.val + '%' 
    INNER jOIN (VALUES ('Broker1'), ('Broker2'), ('Broker3'),('Broker4')) Vals2(val) 
        ON  t1.column1 NOT LIKE '%' + vals2.val + '%' 
group by t1.file_id, vals.val

SQL：合并LIKE，Not LIKE和IN，然后选择最新数据

2 个答案: