SQL查询串联以创建文件路径

Question

I need to create a file path from 3 columns in a SQL query. This will be utilized in a file once everything is completed. I have tried using CONCAT and string methods for the columns but no luck. The query is provided below.

SELECT 
    dbo.TBIndexData.DocGroup, 
    dbo.TBIndexData.Index1 AS Title, 
    dbo.TBIndexData.Index2 AS Meeting_Date, 
    dbo.TBIndexData.Index3 AS Meeting_Number,
    dbo.TBIndexData.Index4 AS Meeting_Type, 
    dbo.TBIndexData.Index5 AS Doc_Name, 
    dbo.TBIndexData.Index6 AS Doc_Type,
    dbo.TBIndexData.Index7 AS Meeting_Page, 
    dbo.TBIndexData.Index8 AS Notes, 
    dbo.TBIndexData.Index9 AS TBUser, 
    dbo.TBIndexData.Index10 AS Date_Scanned, 
    CONCAT (dbo.TBPrimary.FileDir + '\' + dbo.TBPrimary.TimsFileID + '.' + dbo.TBPrimary.FileExtension) AS FilePath
FROM 
    dbo.TBIndexData
JOIN 
    dbo.TBPrimary ON dbo.TBIndexData.DocGroup = dbo.TBPrimary.DocGroup

Answer 1

In SQL Server 2008 you need something like

SELECT I.DocGroup,
       I.Index1  AS Title,
       I.Index2  AS Meeting_Date,
       I.Index3  AS Meeting_Number,
       I.Index4  AS Meeting_Type,
       I.Index5  AS Doc_Name,
       I.Index6  AS Doc_Type,
       I.Index7  AS Meeting_Page,
       I.Index8  AS Notes,
       I.Index9  AS TBUser,
       I.Index10 AS Date_Scanned, 
       P.FileDir + '\' + CAST(P.TimsFileID AS VARCHAR(10)) + 
            '.' + P.FileExtension AS FilePath
FROM   dbo.TBIndexData I
       JOIN dbo.TBPrimary P
         ON I.DocGroup = P.DocGroup 

You shouldn't use schemaname.tablename in the SELECT list. This is not officially supported grammar . Just use tablename or give an alias.

(Using two part names there can lead to confusing errors if calling properties of columns of CLR datatypes)

Answer 2

尝试将CONCAT与逗号一起使用

CONCAT (dbo.TBPrimary.FileDir, '\\', dbo.TBPrimary.TimsFileID, '.', bo.TBPrimary.FileExtension) AS FilePath