USE test
GO
CREATE PROCEDURE BackupFullDB
--BEGIN

    DECLARE  @DBName        VARCHAR(100)
    DECLARE  @ym            VARCHAR(6)
    DECLARE  @ymd           VARCHAR(8)
    DECLARE  @BackupFile    VARCHAR(100)
    DECLARE  @BackName      VARCHAR(100)
    DECLARE  @tmp           VARCHAR(100)
    DECLARE  @backupSetId   as int

    BACKUP DATABASE   @DBName, sysname, @DBName
    TO     DISK     = @BackupFile
    WITH
        NOFORMAT,
        NOINIT,
        NAME = @BackName,
        SKIP,
        NOREWIND,
        NOUNLOAD,
        STATS = 10,
        CHECKSUM
    SELECT
        @backupSetId = position FROM msdb..backupset
        WHERE database_name = @DBName
        AND   backup_set_id = (SELECT max(backup_set_id) FROM msdb..backupset WHERE database_name = @DBName)

    IF @backupSetId IS NULL
    BEGIN
        raiserror(@tmp, 16, 1)
    END
    RESTORE VERIFYONLY FROM
    DISK = @BackupFile WITH
    FILE = @backupSetId,  NOUNLOAD,  NOREWIND

你这个传参数，需要动态凭借你的备份语句啊：
 set @sql='BACKUP DATABASE  '+'''' @DBName''''+', sysname, '+''''@DBName''''
    +'TO     DISK     ='+'''' @BackupFile++++

后面的也是如此，自己改改吧