要查找 RESTORE DATABASE 时间,我发现您可以使用此查询:
declare @filepath nvarchar(1000)
SELECT @filepath = cast(value as nvarchar(1000)) FROM [fn_trace_getinfo](NULL)
WHERE [property] = 2 and traceid=1
SELECT *
FROM [fn_trace_gettable](@filepath, DEFAULT)
WHERE TextData LIKE 'RESTORE DATABASE%'
ORDER BY StartTime DESC;
缺点是,您会注意到,至少在我的测试服务器上,EndTime
始终为 NULL。
所以,我想出了第二个查询来尝试确定结束时间。首先,我很抱歉这很丑陋并且像疯了一样嵌套。
下面的查询假设如下:
- 当运行恢复时,对于那个 DatabaseID 和 ClientProcessID,下一个 EventSequence 包含我们需要的 TransactionID。
- 然后我去寻找事务的最大 EventSequence
- 最后,我选择包含该记录的记录
RESTORE DATABASE
以及与该记录关联的最大事务。
我相信有人可能会接受我所做的并对其进行改进,但这似乎适用于我的测试环境:
declare @filepath nvarchar(1000)
SELECT @filepath = cast(value as nvarchar(1000)) FROM [fn_trace_getinfo](NULL)
WHERE [property] = 2 and traceid=1
SELECT *
FROM [fn_trace_gettable](@filepath, DEFAULT) F5
INNER JOIN
(
SELECT F4.EventSequence MainSequence,
MAX(F3.EventSequence) MaxEventSequence, F3.TransactionID
FROM [fn_trace_gettable](@filepath, DEFAULT) F3
INNER JOIN
(
SELECT F2.EventSequence, MIN(TransactionID) as TransactionID
FROM [fn_trace_gettable](@filepath, DEFAULT) F1
INNER JOIN
(
SELECT DatabaseID, SPID, StartTime, ClientProcessID, EventSequence
FROM [fn_trace_gettable](@filepath, DEFAULT)
WHERE TextData LIKE 'RESTORE DATABASE%'
) F2 ON F1.DatabaseID = F2.DatabaseID AND F1.SPID = F2.SPID
AND F1.ClientProcessID = F2.ClientProcessID
AND F1.StartTime > F2.StartTime
GROUP BY F2.EventSequence
) F4 ON F3.TransactionID = F4.TransactionID
GROUP BY F3.TransactionID, F4.EventSequence
) F6 ON F5.EventSequence = F6.MainSequence
OR F5.EventSequence = F6.MaxEventSequence
ORDER BY F5.StartTime
编辑
我对查询进行了一些更改,因为我使用的一个测试数据库区分大小写并且丢失了一些记录。我还注意到从磁盘恢复时它DatabaseID
是空的,所以我现在也在处理它:
SELECT *
FROM [fn_trace_gettable](@filepath, DEFAULT) F5
INNER JOIN
(
SELECT F4.EventSequence MainSequence,
MAX(F3.EventSequence) MaxEventSequence, F3.TransactionID
FROM [fn_trace_gettable](@filepath, DEFAULT) F3
INNER JOIN
(
SELECT F2.EventSequence, MIN(TransactionID) as TransactionID
FROM [fn_trace_gettable](@filepath, DEFAULT) F1
INNER JOIN
(
SELECT DatabaseID, SPID, StartTime, ClientProcessID, EventSequence
FROM [fn_trace_gettable](@filepath, DEFAULT)
WHERE upper(convert(nvarchar(max), TextData))
LIKE 'RESTORE DATABASE%'
) F2 ON (F1.DatabaseID = F2.DatabaseID OR F2.DatabaseID IS NULL)
AND F1.SPID = F2.SPID
AND F1.ClientProcessID = F2.ClientProcessID
AND F1.StartTime > F2.StartTime
GROUP BY F2.EventSequence
) F4 ON F3.TransactionID = F4.TransactionID
GROUP BY F3.TransactionID, F4.EventSequence
) F6 ON F5.EventSequence = F6.MainSequence
OR F5.EventSequence = F6.MaxEventSequence
ORDER BY F5.StartTime