SQL Server 备份报告

Question

我正在尝试创建一份报告，详细说明我们 SQL Server 上的最新备份。截至目前，我已经写了这个：

select 
    [Server_Name] = a.server_name, 
    [Database_Name] = a.database_name, 
    [Last_Backup] = max(a.backup_finish_date),  
    [Backup_Type] = CASE A.type
                              WHEN 'D' THEN 'FULL'
                              WHEN 'I' THEN 'Differential'
                              WHEN 'L' THEN 'Log'
                              WHEN 'F' THEN 'FileGroup'
                              WHEN 'G' THEN 'FileGroup Differential'
                              WHEN 'P' THEN 'Partial'
                              WHEN 'Q' THEN 'Partial Differential'
                  END,
    [Backup_Set] = b.name,
    [Days_Since_Last_Backup] = DATEDIFF(d,(max(a.backup_finish_Date)),GETDATE())
from msdb.dbo.backupset AS a
INNER JOIN msdb.dbo.backupset as b ON a.backup_set_id = b.backup_set_id
GROUP BY a.database_name, a.server_name, b.name, a.type
ORDER BY database_name

我想更改它，以便列显示以下内容：

Server_Name, Database_Name, Last_Full_Backup, Last_Diff_Backup, Last_Log_Backup, 
Backup_Set, Days_Since_Last_Full

为了显示Last_Full_Backup、Last_Diff_Backup 和Last_Log_Backup 的日期，我想我必须做一些旋转，但我不太确定如何（我对旋转非常不熟悉）。

任何帮助将不胜感激。在此先感谢大家。

Answer 1

你可以做一个“手动旋转”，比如；

SELECT 
    [Server_Name] = a.server_name, 
    [Database_Name] = a.database_name, 
    [Last_Backup]      = MAX(a.backup_finish_date),  
    [Last_Full_Backup] = MAX(CASE WHEN A.type='D' 
                                    THEN a.backup_finish_date ELSE NULL END),
    [Last_Diff_Backup] = MAX(CASE WHEN A.type='I' 
                                    THEN a.backup_finish_date ELSE NULL END),
    [Last_Log_Backup]  = MAX(CASE WHEN A.type='L' 
                                    THEN a.backup_finish_date ELSE NULL END),
    [Backup_Set] = b.name,
    [Days_Since_Last_Backup] = DATEDIFF(d,(max(a.backup_finish_Date)),GETDATE())
FROM msdb.dbo.backupset AS a
INNER JOIN msdb.dbo.backupset as b ON a.backup_set_id = b.backup_set_id
GROUP BY a.database_name, a.server_name
ORDER BY database_name