TSQL to copy backups to a new location

Question

Hello,
I am trying to select the most recent backup of a database and move it over to a new location. However I am unable to assign the top1 max to a variable. Here is my script:
DECLARE @cmd nvarchar(4000)
DECLARE @srcbkpLocation nvarchar(4000)
DECLARE @destbkpLocation nvarchar(4000)
DECLARE @bkpFileName nvarchar(4000)
set @destbkpLocation='\\ServerB\FULL\Backups\NameofDB\'
set @srcbkpLocation='E:\Backups\NameofDB\'
SELECT top 1 @bkpFileName= max(bs.backup_finish_date) as Mostrecent,
bs.database_name AS DatabaseName,
bms.physical_device_name
FROM msdb.dbo.backupset bs
INNER JOIN msdb.dbo.backupmediafamily bms
ON bs.media_set_id = bms.media_set_id
INNER JOIN master.dbo.sysdatabases s
ON bs.database_name = s.name
WHERE
s.dbid IN (6) AND
bs.type = 'D'
GROUP BY bs.database_name,bms.physical_device_name order by Mostrecent desc
SET @cmd = 'xcopy ' +@srcbkpLocation++@bkpFileName + ' ' + @destbkpLocation++@bkpFileName
EXEC master.dbo.xp_cmdshell @cmd, NO_OUTPUT
can someone tell me where am I doing wrong?

Answer 1

Hello，
The error occurs when you are assigning the column values from a SELECT statement into local variables but not all columns are assigned to a corresponding local variable. To avoid this error, you can try to asssign each column to a
local variable. For example:
declare @date datetime
declare @dbname nvarchar(40)
declare @bkpFileName nvarchar(4000)
SELECT top 1 @date=max(bs.backup_finish_date),@dbname=bs.database_name,
@bkpFileName=bms.physical_device_name
FROM msdb.dbo.backupset bs
INNER JOIN msdb.dbo.backupmediafamily bms
ON bs.media_set_id = bms.media_set_id
INNER JOIN master.dbo.sysdatabases s
ON bs.database_name = s.name
WHERE
s.dbid IN (1) AND
bs.type = 'D'
GROUP BY bs.database_name,bms.physical_device_name
order by max(bs.backup_finish_date) desc
As for the Xcopy command, please verify that the source path and destination path of the backup file is correct.
Regards,
Fanny Liu
If you have any feedback on our support, please click here. 
Fanny Liu
TechNet Community Support