系統公告
個人檔案
ＩＤ：jblee暱稱：結冰貍
地區：桃園縣
最近文章發表
最新的回應
- 亞:
重點至少要有寫跟題目相... - HI:
偶然發現﹐衷心希望你開... - jkguan:
不用檢討啦,我不是這行... - jkguan:
新年快樂,老實說,我也... - linhof35:
很感性喔!
人氣指數
當日人次:
累積人次:
累積人次:
我推薦誰
好時光貼曆
誰推薦我
誰來我家
RSS 訂閱
贊助商
其它資訊
本部落所刊登之內容，皆由作者個人所提供，不代表 yam天空部落 本 身立場。
檢視方式: 列表 摘要
January 14, 2008
jblee - 2008-01-14 15:11:42
MSS - Mobile System Software
3WXM - 3Com Wireless Switch Manager
3WXM - 3Com Wireless Switch Manager
March 5, 2007
jblee - 2007-03-05 10:34:29
近來，同事遭受MS SQL Server log塞爆硬碟所苦，其實，三年前，小弟也有相同的困擾，當時的解法，備忘寫下：
SET NOCOUNT ON
use master;
DECLARE @dbname varchar(260),
@dblogname varchar(260),
@LogicalFileName sysname,
@MaxMinutes INT,
@NewSize INT
DECLARE DBList_cursor CURSOR FOR
select a.name, b.name from sysdatabases a, sysaltfiles b where a. dbid = b. dbid and b.fileid='2'
OPEN DBList_cursor
FETCH NEXT FROM DBList_cursor
INTO @dbname, @dblogname
WHILE @@FETCH_STATUS = 0
BEGIN
-- truncate log
EXEC('USE '+ @dbname)
SELECT @LogicalFileName = RTRIM(@dblogname),
@MaxMinutes = 10,
@NewSize = 2
-- Setup / initialize
DECLARE @OriginalSize int
SELECT @OriginalSize = size
FROM sysfiles
WHERE name = @LogicalFileName
SELECT 'Original Size of ' + db_name() + ' LOG is ' +
CONVERT(VARCHAR(30),@OriginalSize) + ' 8K pages or ' +
CONVERT(VARCHAR(30),(@OriginalSize*8/1024)) + 'MB'
FROM sysfiles
WHERE name = @LogicalFileName
CREATE TABLE DummyTrans
(DummyColumn char (8000) not null)
DECLARE @Counter INT,
@StartTime DATETIME,
@TruncLog VARCHAR(255)
SELECT @StartTime = GETDATE(),
@TruncLog = 'BACKUP LOG ' + db_name() + ' WITH TRUNCATE_ONLY'
DBCC SHRINKFILE (@LogicalFileName, @NewSize)
EXEC (@TruncLog)
-- Wrap the log if necessary.
WHILE @MaxMinutes > DATEDIFF (mi, @StartTime, GETDATE()) -- time has not expired
AND @OriginalSize = (SELECT size FROM sysfiles WHERE name = @LogicalFileName)
AND (@OriginalSize * 8 /1024) > @NewSize
BEGIN -- Outer loop.
SELECT @Counter = 0
WHILE ((@Counter < @OriginalSize / 16) AND (@Counter < 50000))
BEGIN -- update
INSERT DummyTrans VALUES ('Fill Log')
DELETE DummyTrans
SELECT @Counter = @Counter + 1
END
EXEC (@TruncLog)
END
SELECT 'Final Size of ' + db_name() + ' LOG is ' +
CONVERT(VARCHAR(30),size) + ' 8K pages or ' +
CONVERT(VARCHAR(30),(size*8/1024)) + 'MB'
FROM sysfiles
WHERE name = @LogicalFileName
DROP TABLE DummyTrans
--- truncate log end
FETCH NEXT FROM DBList_cursor
INTO @dbname, @dblogname
END
CLOSE DBList_cursor
DEALLOCATE DBList_cursor
SET NOCOUNT OFF
SET NOCOUNT ON
use master;
DECLARE @dbname varchar(260),
@dblogname varchar(260),
@LogicalFileName sysname,
@MaxMinutes INT,
@NewSize INT
DECLARE DBList_cursor CURSOR FOR
select a.name, b.name from sysdatabases a, sysaltfiles b where a. dbid = b. dbid and b.fileid='2'
OPEN DBList_cursor
FETCH NEXT FROM DBList_cursor
INTO @dbname, @dblogname
WHILE @@FETCH_STATUS = 0
BEGIN
-- truncate log
EXEC('USE '+ @dbname)
SELECT @LogicalFileName = RTRIM(@dblogname),
@MaxMinutes = 10,
@NewSize = 2
-- Setup / initialize
DECLARE @OriginalSize int
SELECT @OriginalSize = size
FROM sysfiles
WHERE name = @LogicalFileName
SELECT 'Original Size of ' + db_name() + ' LOG is ' +
CONVERT(VARCHAR(30),@OriginalSize) + ' 8K pages or ' +
CONVERT(VARCHAR(30),(@OriginalSize*8/1024)) + 'MB'
FROM sysfiles
WHERE name = @LogicalFileName
CREATE TABLE DummyTrans
(DummyColumn char (8000) not null)
DECLARE @Counter INT,
@StartTime DATETIME,
@TruncLog VARCHAR(255)
SELECT @StartTime = GETDATE(),
@TruncLog = 'BACKUP LOG ' + db_name() + ' WITH TRUNCATE_ONLY'
DBCC SHRINKFILE (@LogicalFileName, @NewSize)
EXEC (@TruncLog)
-- Wrap the log if necessary.
WHILE @MaxMinutes > DATEDIFF (mi, @StartTime, GETDATE()) -- time has not expired
AND @OriginalSize = (SELECT size FROM sysfiles WHERE name = @LogicalFileName)
AND (@OriginalSize * 8 /1024) > @NewSize
BEGIN -- Outer loop.
SELECT @Counter = 0
WHILE ((@Counter < @OriginalSize / 16) AND (@Counter < 50000))
BEGIN -- update
INSERT DummyTrans VALUES ('Fill Log')
DELETE DummyTrans
SELECT @Counter = @Counter + 1
END
EXEC (@TruncLog)
END
SELECT 'Final Size of ' + db_name() + ' LOG is ' +
CONVERT(VARCHAR(30),size) + ' 8K pages or ' +
CONVERT(VARCHAR(30),(size*8/1024)) + 'MB'
FROM sysfiles
WHERE name = @LogicalFileName
DROP TABLE DummyTrans
--- truncate log end
FETCH NEXT FROM DBList_cursor
INTO @dbname, @dblogname
END
CLOSE DBList_cursor
DEALLOCATE DBList_cursor
SET NOCOUNT OFF
yam天空部落 建置維護 © 1999~2009 webs-tv inc. All Rights Reserved.