Truncate Log Before Backup

Jan 14, 2000

how do i modify this so that it will truncate the log before backup?

SQLMAINT.EXE -D mimi-BkUpDB E:SQLBackups -BkUpMedia DISK -DelBkUps 1 -Rpt E:SQLMaintmimi_maint.rpt

thanks

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Backup Log - Will It Truncate?

Jun 9, 2006

According to BOL<---BACKUP LOGSpecifies a backup of the transaction log only. The log is backed upfrom the last successfully executed LOG backup to the current end ofthe log. Once the log is backed up, the space may be truncated when nolonger required by replication or active transactions.--->Does this mean I could do something else to truncate the log or is itsaying that the backup log command may truncate the log if it feelslike it?I want ot get a log from a client site onto my server for analysis butI want ot make absolute certain that my backing up the log on theirserver won't truncate it there.

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How To BACKUP LOG WITH Truncate Only In SSIS

Jun 29, 2007

Hello



I wanna use backup database task in SSIS to implement SQL statement

BACKUP LOG WITH truncate only.

But in this task, seems that you must at least to choose a location to store backup. No way to just truncate log in SSIS?



any help will be appreciated.

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Aug 8, 2000

I have been unsuccessful in getting the Backup Log with
No Truncate option to work.

Any tips, tricks, suggestions, etc., would be appreciated.

Thanks!!!

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Does A TransLog Backup Truncate The Trans Log?

Dec 6, 1999

This is a silly question but I am not sure of the answer.

Each day I do a complete DB backup and houly I backup the Translog file with the append mode.

Question Is the Transaction log truncated each time I do a Transaction Log Backup?

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Jun 13, 2006

Hi all,If I set recovery model SIMPLE then truncation of log files will beautomated , but I will losedatabase changes made since the last backup was taken.Is there any way to automate truncation of log file andbackup of database upto last change has been done????Plz Help.

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I would like to know what happens if i shrink the database with truncate only option and do a full backup or transaction log backup ? are the full backup or transaction log backup valid? I know that the performance of the database is bad if i shrink the database. What happens to full backup or transaction log backups?

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Jan 29, 2007

Hello all - I have a SQL Server 2000 database setup using the Full Recovery Model. Each night, we backup the entire database, and as such would like to truncate the log at this time as well.

Is the best way to do this to also backup the Transaction Log, and then perform a DBCC SHRINKFILE command? It just seems like there should be an easier way...?

Thanks!

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Dec 30, 2004

With a database size of almost 2 GB, I run the 'truncate table eventlog command' which completes successfully, but the database size only decreases by about 10 MB so stays too large - indeed the number of rows in the eventlog table is minimal, but the otehr tables in this database don't show such an amount of tables large enough to cause the size issue either. What could be the reason and how can I reduce it (possibly truncating another table but then which one, how could I determine which is too large and needs truncating?).

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Apr 17, 2008

Hi all...

Please forgive the elementary nature of my question, but could someone please explain the differences between these two database backup types:

1. Log backup
2. Log backup no truncate



From what I understand and have read, the "no truncate" backup method keeps the entire transaction log indefinitely. Using the truncation method, the transaction log is either 1) compressed or 2) cleaned up so that any completed transactions are removed from the log. Which one of these is true?


And, for the big question: is it better to run a backup of the transaction log with truncation or not? Our current backup scheme is similar to the following:


Full backup every 24 hours
transaction log backup every hour with no truncation


Should we insert a truncation backup somewhere in here? What is the danger of removing (or compressing) parts of the transaction log? Will this affect the restore process?


Thanks in advance!

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BACKUP LOG Cannot Be Performed Because There Is No Current Database Backup. BACKUP LOG Is Terminating Abnormally.

Jan 31, 2008



Hi there

I'm getting this message on my third automated backup of the transaction logs of the day. Both databases are in full recovery mode, both successfully backed up at 01.00. The transaction logs backed up perfectly happily at 01:30 and 05:30, but failed at 09:30.

The only difference between 05:30 and 09:30's backups is that the log files were shrunk at 08:15 (the databases in question are the ones that sit under ILM2007, and keeping the log files small keeps the system running better).


Is it possible that shrinking the log files causes the database to think that there hasn't been a full database backup?

Thanks

Jane

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Cannot Truncate Due To Fks

Aug 1, 2007

i read that i can Truncate a table even if child table has no records so i tries to disable constraints but still can't get it to workCannot truncate table 'InventoryPC' because it is being referenced by a FOREIGN KEY constraint. disabling code on lines 9-13 and enabling codes on 36-40 1 ALTER PROCEDURE dbo.RevertDB
2
3 /* Reverts Database to original "Clean" State */
4 AS
5 SET NOCOUNT OFF
6 DECLARE @Log AS varchar(MAX), @RowsInDB AS int
7 SET @Log = 'RevertDB Started at ' + CAST(GETDATE() AS varchar(50)) + ''
8
9 /* *** Disable Constraints *** */
10 ALTER TABLE Booking NOCHECK CONSTRAINT ALL
11 ALTER TABLE InventoryPC NOCHECK CONSTRAINT ALL
12 ALTER TABLE PC NOCHECK CONSTRAINT ALL
13 ALTER TABLE Platform NOCHECK CONSTRAINT ALL
14
15 /* *** Start Truncates *** */
16 TRUNCATE TABLE Booking
17 SET @Log = @Log + 'Trucate Table Booking - Done' + ''
18 SET @RowsInDB = (SELECT COUNT(BookingID) FROM Booking)
19 SET @Log = @Log + '-- Rows Affected: ' + CAST(@@ROWCOUNT AS varchar(10)) + ', Rows in Table: ' + CAST(@RowsInDB AS varchar(10)) + ''
20
21 TRUNCATE TABLE InventoryPC
22 SET @Log = @Log + 'Trucate Table InventoryPC - Done' + ''
23 SET @RowsInDB = (SELECT COUNT(InventoryID) FROM InventoryPC)
24 SET @Log = @Log + '-- Rows Affected: ' + CAST(@@ROWCOUNT AS varchar(10)) + ', Rows in Table: ' + CAST(@RowsInDB AS varchar(10)) + ''
25
26 TRUNCATE TABLE PC
27 SET @Log = @Log + 'Trucate Table PC - Done' + ''
28 SET @RowsInDB = (SELECT COUNT(PCID) FROM PC)
29 SET @Log = @Log + '-- Rows Affected: ' + CAST(@@ROWCOUNT AS varchar(10)) + ', Rows in Table: ' + CAST(@RowsInDB AS varchar(10)) + ''
30
31 TRUNCATE TABLE Platform
32 SET @Log = @Log + 'Trucate Table Platform - Done' + ''
33 SET @RowsInDB = (SELECT COUNT(PlatformID) FROM Platform)
34 SET @Log = @Log + '-- Rows Affected: ' + CAST(@@ROWCOUNT AS varchar) + ', Rows in Table: ' + CAST(@RowsInDB AS varchar(10)) + ''
35
36 /* *** Enable Constraints *** */
37 ALTER TABLE Booking WITH CHECK CHECK CONSTRAINT ALL
38 ALTER TABLE InventoryPC WITH CHECK CHECK CONSTRAINT ALL
39 ALTER TABLE PC WITH CHECK CHECK CONSTRAINT ALL
40 ALTER TABLE Platform WITH CHECK CHECK CONSTRAINT ALL
41
42 SET @Log = @Log + '*** End Truncates ***' + ''
43 /* *** End Truncates *** */
44
45 /* *** Start Insert Platform *** */
46 SET @Log = @Log + 'Start Insert Platform' + ''
47
48 EXEC dbo.InsertPlatform 'Windows XP SP2 Professional Edition', 'Some description for Windows XP SP2 Professional Edition over here …'
49 EXEC dbo.InsertPlatform 'Windows Vista Ultimate', 'See everything you''re working on more clearly with Windows Aero, and quickly switch between windows or tasks using Windows Flip 3D and Live Thumbnails. You can easily find what you need—when you need it―with Instant Search and live icon previews that display the actual contents of your files. And while you''re at it, give your personal productivity a boost with instant access to the information you care about using Windows Sidebar and Gadgets. Put these easy-to-use and customizable mini-applications on your desktop and reveal the information you''re looking for at a glance.Website: http://www.microsoft.com/windows/products/windowsvista/seeit/default.mspx'
50 EXEC dbo.InsertPlatform 'Apple Mac OS X Tiger', 'Some description for Apple Mac OS X Tiger over here …'
51 EXEC dbo.InsertPlatform 'Apple Mac OS X Leopard', 'Desktop: The new look of Leopard showcases your favorite desktop image and puts new file Stacks at your fingertips for a stunning, clutter-free workspace.Finder: Browse your files like you browse your music with Cover Flow.Time Machine: See how your system looked on any given day and restore files with aWebsite: http://www.apple.com/macosx/leopard/features/'
52 EXEC dbo.InsertPlatform 'Red Hat Linux', 'Some description for Red Hat Linux over here …'
53
54 SET @Log = @Log + 'Rows In Platform: ' + (SELECT COUNT(PlatformID) FROM Platform) + ''
55 /* *** Start Insert PC *** */
56 SET @Log = @Log + 'Start Insert PC' + ''
57
58 DECLARE @WinXP int, @WinVista int, @OSXTiger int, @OSXLeopard int, @RedHat int
59 SET @WinXP = (SELECT PlatformID FROM Platform WHERE Title = 'Windows XP SP2 Professional Edition')
60 SET @WinVista = (SELECT PlatformID FROM Platform WHERE Title = 'Windows Vista Ultimate')
61 SET @OSXTiger = (SELECT PlatformID FROM Platform WHERE Title = 'Apple Mac OS X Tiger')
62 SET @OSXLeopard = (SELECT PlatformID FROM Platform WHERE Title = 'Apple Mac OS X Leopard')
63 SET @RedHat = (SELECT PlatformID FROM Platform WHERE Title = 'Red Hat Linux')
64
65 EXEC dbo.InsertPC 'Fusion PC One', 'Description here ...', 'Intel Core2 Duo E6600 2.4 GHz 1066MHz', '1GB Dual Channel DDR2 667 SDRAM', '120GB SATA2 NCQ HDD', 'NVIDIA GeForce 8600 256MB GDDR3', '22" 3000:1 Wide Screen LCD', @WinXP
66 EXEC dbo.InsertPC 'Fusion PC Two', 'Description here ...', 'Intel Core2 Duo E6850 3 GHz 1333MHz', '2GB Dual Channel DDR2 800 SDRAM', '240GB SATA2 NCQ HDD', 'NVIDIA GeForce 8800 Ultra 256MB GDDR3 SLI', '24" 3000:1 Wide Screen LCD', @WinVista
67 EXEC dbo.InsertPC 'Fusion PC Three', 'Description here ...', 'AMD Athlon 64 X2 Dual Core 6000+ 3 GHz', '2GB Dual Channel DDR2 667 SDRAM', '240GB SATA2 NCQ HDD', 'ATI Radeon Cross Fire 2900 256MB GDDR3', '24" 3000:1 Wide Screen LCD', @WinVista
68 EXEC dbo.InsertPC 'Fusion X1', 'Description here ...', 'Intel Core2 Extreme Q6850 3 GHz 1333MHz', '6GB Dual Channel DDR2 800 SDRAM', '500GB SATA2 NCQ HDD', 'NVIDIA GeForce 8800 Ultra 256MB GDDR3 SLI', '30" 3000:1 Wide Screen LCD', @OSXLeopard
69 EXEC dbo.InsertPC 'Fusion X2', 'Description here ...', 'AMD Athlon 64 FX 74 3 GHz', '6GB Dual Channel DDR2 800 SDRAM', '500GB SATA2 NCQ HDD', 'NVIDIA GeForce 8900 Ultra SLI 256MB GDDR3', '30" 3000:1 Wide Screen LCD', @WinVista
70 EXEC dbo.InsertPC 'Fusion Tiger 1', 'Description here ...', 'Intel Core2 Duo E6600 2.4 GHz 1066MHz', '2GB Dual Channel DDR2 800 SDRAM', '120GB SATA2 NCQ HDD', 'NVIDIA GeForce 8600 256MB GDDR3 SLI', '22" 3000:1 Wide Screen LCD', @OSXTiger
71 EXEC dbo.InsertPC 'Fusion Linux 1', 'Description here ...', 'AMD Athlon 64 X2 6000+ 3 GHz', '1GB Dual Channel DDR2 800 SDRAM', '120GB SATA2 NCQ HDD', 'NVIDIA GeForce 8600 256MB GDDR3', '22" 3000:1 Wide Screen LCD', @RedHat
72
73 SET @Log = @Log + 'Rows In PC: ' + (SELECT COUNT(PCID) FROM PC) + ''
74
75 /* *** Start Insert Inventory *** */
76 SET @Log = @Log + 'Start Insert Inventory' + ''
77
78 DECLARE @F1 int, @F2 int, @F3 int, @FX1 int, @FX2 int, @FT1 int, @FR1 int
79 SET @F1 = (SELECT PCID FROM PC WHERE Title = 'Fusion PC One')
80 SET @F2 = (SELECT PCID FROM PC WHERE Title = 'Fusion PC Two')
81 SET @F3 = (SELECT PCID FROM PC WHERE Title = 'Fusion PC Three')
82 SET @FX1 = (SELECT PCID FROM PC WHERE Title = 'Fusion X1')
83 SET @FX2 = (SELECT PCID FROM PC WHERE Title = 'Fusion X2')
84 SET @FT1 = (SELECT PCID FROM PC WHERE Title = 'Fusion Tiger One')
85 SET @FR1 = (SELECT PCID FROM PC WHERE Title = 'Fusion Linux One')
86
87 EXEC dbo.InsertInventory 10, @F1, 2.5, 'iCluster Fusion One'
88 EXEC dbo.InsertInventory 10, @F2, 2.5, 'iCluster Fusion Two'
89 EXEC dbo.InsertInventory 10, @F3, 2.5, 'iCluster Fusion Three'
90 EXEC dbo.InsertInventory 6, @FX1, 6, 'iCluster Fusion X1'
91 EXEC dbo.InsertInventory 6, @FX2, 6, 'iCluster Fusion X2'
92 EXEC dbo.InsertInventory 10, @FT1, 3, 'iCluster Fusion Tiger One'
93 EXEC dbo.InsertInventory 30, @FR1, 2, 'iCluster Fusion Linux One'
94
95 SET @Log = @Log + 'Rows In Inventory: ' + (SELECT COUNT(InventoryID) FROM InventoryPC) + ''
96
97 RETURN @Log
98
   

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goADOcn.Execute (strSQL)

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This is what I have so far which as you can see is hardcoded:

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS OFF
GO


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BACKUP LOG [FICaches] with TRUNCATE_ONLY


DBCC SHRINKFILE (FICaches_log, 50)


GO
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GO
SET ANSI_NULLS ON
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Mar 22, 2007

Hello All,



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This is what my statement is

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