SQL convert no column name

问题

I have the following SQL Statement

SELECT DISTINCT CAST(CONVERT(CHAR(16), AuditDate,113) AS datetime), DisplayName
FROM     myTable
WHERE DisplayName IS NOT NULL
ORDER BY DisplayName asc

The two columns that get returned as Display name and (No Column Name) with the latter being a problem. I'm using this in an SSRS report and I need to pass my AuditDate value to it. With result now being (No Column Name) my report has missing information.

How can i fix this?

回答1:

Give your column an alias like this:

SELECT DISTINCT CAST(CONVERT(CHAR(16), AuditDate,113) AS datetime) AS 'Audit Date' 

or

SELECT DISTINCT CAST(CONVERT(CHAR(16), AuditDate,113) AS datetime) 'Audit Date'

depending on your preferred syntax

回答2:

Just add alias to result column

CAST(CONVERT(CHAR(16), AuditDate,113) AS datetime) AS [AuditDate]

回答3:

SELECT DISTINCT 
    CAST(CONVERT(CHAR(16), AuditDate,113) AS datetime) AS AuditDate, 
    DisplayName
FROM     
    myTable
WHERE 
    DisplayName IS NOT NULL
ORDER BY 
    DisplayName ASC

来源：https://stackoverflow.com/questions/45549289/sql-convert-no-column-name