Transaction log is a list/history of modification executed by a database management system to guarantee ACID properties over crashes or hardware failures.

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Transaction Log maintenance on Mirror database

SQL Server Version: 2008 R2 Enterprise SP2 I am trying to get a handle on our SQL Server maintenance and I came across something I think is incorrect. We have a single production instance with 3 ...
6
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4answers
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Manually set log file size after shrink SQL Server 2008 R2

Am becoming a somewhat involuntary DBA at work at teh moment and really need some help on something. We have a 40GB database in Full Recovery Mode, no log backup configured and a huge log file of ...
0
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2answers
368 views

Database not naturally shrinking log file [duplicate]

I have a database that is set to Simple recovery mode. There is 99% free space in the log file and I can manually truncate the log file right down to 500 MB. The next day, after a daily import ...
4
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1answer
706 views

SQL Server Troubleshooting Replication and Long-Running fn_dblog query

I am trying to get (pull) Transactional Replication working again for a subscriber. Currently, in Replication Monitor I am seeing messages in the Publisher to Distributor tab and the Distributor to ...
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2answers
125 views

Who changed the size of the transaction log?

Can I know, who and when changed size of database transation log?
5
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1answer
447 views

Why did my transaction log grow so much? [duplicate]

Possible Duplicate: Why Does the Transaction Log Keep Growing or Run Out of Space? About a month ago I migrated my SQL Server 2008 R2 database to a new schema. I ran scripts to migrate the ...
4
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1answer
1k views

Why can't I read my transaction log backup file using fn_dump_dblog?

I'm using this blog on sqlskills.com as a guide to practice finding the relevant LSN in a transaction log backup for point in time recovery. After backing up the transaction log, I attempt to read it ...
7
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2answers
746 views

SQL Server Transaction Logs in the Cloud

It is a common practice to place the transaction logs (*.ldf) on a separate physical disk system than database files (*.mdf, *.ndf). In a virtual machine cloud environment, is it okay to put the ...
3
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2answers
221 views

SQL Server transaction log - shrinking and reattaching

I have the next scenario in SQL Server 2008: one big database (production DB). I want to backup this db then restore it on another server. Then I do some delete operation from some big tables. After ...
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2answers
627 views

Restore to a point between two full SQL Server backups

I have two SQL Server database backups from Server1. Backup1 was made on, say, 2013-01-01 and Backup2 was made on 2013-01-03. What I want to do is restore Server2 to the intermediate state on ...
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2answers
16k views

How to disable ldf file or limit its size [duplicate]

Possible Duplicate: Why Does the Transaction Log Keep Growing or Run Out of Space? My .ldf file size keeps increasing. I already tried to shrink it but after that it just grows again. How ...
2
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1answer
3k views

SQL Server - how transactions and transaction log work (simplified)

I have a theory on how transactions work, but I would like if someone could verify it or correct some points if possible. Let's consider we have a database with full recovery model. Now, everything ...
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3answers
738 views

Point in time recovery from the same database - what does it mean?

I have two questions. I have a database in full recovery mode. Lets call transaction log an LDF file for short. SQL Server allows me to restore to point in time in the past when restoring from ...
8
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2answers
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SQL Server - contents of transaction log file in more detail

I have a question regarding transaction log (let’s just call it LDF for short) contents. I am assuming a database with full recovery model. I have read that LDF file contains (logs) each and every ...
2
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1answer
891 views

IBM DB2 9.7, possible to temporarily disable transaction logs?

I want to clean the whole database, so I am dropping all tables and DB objects in two FOR loops, within one transaction. This makes the transaction logs become full. I could increase the transaction ...
2
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2answers
101 views

Searching transaction logs for changes

I currently have a database with an attached CMS. The CMS has about 50+ people with various permission levels that can log in etc... I would like to know if there is a way I can look at the ...
2
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2answers
172 views

separating tlog and db file when using fusionio

We have a FusionIO card that we use in our production database. We have both the transaction log as well as the database files on that same drive. I know the recommendation is to place the tlog files ...
96
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3answers
91k views

Why Does the Transaction Log Keep Growing or Run Out of Space?

This one seems to be a common question in most forums and all over the web, it is asked here in many formats that typically sound like this: In SQL Server - What are some reasons the ...
2
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3answers
3k views

ASPState Log file growing tremendously - SQL Server 2008

Microsoft SQL Server 2008 (SP3) - 10.0.5500.0 (X64) Web Edition (64-bit) on Windows NT 6.1 (Build 7601: Service Pack 1) I have an ASPState database online, and its log file ASPState_log is growing ...
3
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1answer
182 views

Shrink a large log file for a “Throw Away” database

I have a copy of my prod database on a development server. I am using it to test a deployment script. But when I run it, it says that the log file is full. I checked and it is at 10 GB (Almost the ...
39
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5answers
21k views

Why does ALTER COLUMN to NOT NULL cause massive log file growth?

I have a table with 64m rows taking 4.3 GB on disk for its data. Each row is about 30 bytes of integer columns, plus a variable NVARCHAR(255) column for text. I added a a NULLABLE column with ...
3
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4answers
248 views

Does it make sense to use full recovery if the data and log files are on the same HD?

We have a database that was set up to use full recovery and my guess is that the reasoning was only to prevent data loss if a failure happened between full backups. We make daily full backups of the ...
2
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1answer
2k views

Why does my transaction log use so much space?

I have a staging table with 20 million rows that uses about 8GB of storage. After populating foreign keys and sanitizing data I need to move this data into a production table (which does not need all ...
5
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3answers
2k views

Disabling logging on certain tables

I'm using SQL Server 2005. I have two tables that contain aggregate information. The information is constantly being updated, generating almost 5GB of log data a day. (That's larger than the entire ...
0
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2answers
195 views

SQL Server transaction log [duplicate]

Possible Duplicate: Why Does the Transaction Log Keep Growing or Run Out of Space? Is it possible to have SQL Server 2008 R2 reset the transaction log for certain databases when the ...
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2answers
559 views

Can the transaction log in SQL Server 2008 Express edition be viewed in text?

Is it possible to read the transaction log in text/table format, and if so, how can I do that?
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3answers
298 views

Transaction Log file .ldf is too small

Current database is almost 200GB however the transaction log file is only 4.1GB. I am worried if this influences the performance of databse and how could it be solved. When I do this query DECLARE ...
5
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2answers
1k views

How do I tell what is filling up the transaction log?

We have a transaction log on a sql database and for some reason it has filled up to 50GB when our live system only has about 2GB. Is there any way I can profile sql or the transaction log to try and ...
0
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1answer
121 views

How are transactions logs inserted?

I have an ms-access database at work that has a table that's a transaction log. The table contains the following fields: Date - The date the transaction took place. Table_Name - Name of the ...
6
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3answers
3k views

SQL Server virtual log size

I'm somewhat of an accidental DBA, being a developer who inherited a couple of database servers (2005 and 2008) from someone who knew little about database administration, and seemingly had even less ...
5
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1answer
234 views

Can We Perform an “Up-To-The-Minute Restore” After Taking Transaction Log Backups?

The Setup: Say we have a Database in Full Recovery Mode that does a nightly Database Backup, Transaction Log Backup, and Transaction Log Shrink. Now the Transaction Log grows so quickly during the ...
4
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2answers
1k views

How can I find databases with a large number of virtual log files?

I have several databases on a production server that are in the hundreds of gigabytes, and have many thousands of transactions running through them on a daily basis. Almost all these databases are ...
6
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1answer
2k views

SQL Server transaction log file refuses to grow

Problem: I have a SQL Server database sitting on a 1 TB drive. The log will not grow past 5 MB even when the MAXSIZE is set much larger than 5 MB. Error received: The transaction log for database ...
3
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3answers
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When are Archived Redo Logs generated?

We have an instance in Oracle 10g. Only one schema is used for a web application (Internet-facing), which is only user for reading information, no adding or modifying data. The rest of schemas are ...
7
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2answers
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Sql Server - Best Practices for Growing Database Files

I have been monitoring file growth via the data collector in sql server 2008 r2 for two weeks. The database is growing consistently at around 35(MB)/Day. The DB has not yet hit the initial size of 2 ...
5
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2answers
844 views

SQL Server 2008 transaction log full [duplicate]

We have a large database, with a size of approx 400GB. We are using bulk insert (from upstream system) with the following parameters: `Driver=/IIS/Appl/Server/branded_odbc/lib/VMsqls24.so` ...
4
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1answer
1k views

Transaction Log Truncation with Copy Only

I have a database backup job set to use full backup with the Copy only option on once daily. The copy only is on because from what I have read that is the only way to backup a database that is ...
6
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2answers
6k views

MS SQL Server - Checkpoint process stuck in SLEEP_BPOOL_FLUSH

We seem to have a problem that came out of nowhere. The checkpoint process is stuck in SLEEP_BPOOL_FLUSH state, and not actually reducing the usage in the log file. This never seemed to happen ...
9
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2answers
1k views

SQL Server 'Create Database' statement. How to inherit autogrowth settings?

I am using SQL Server 2008 R2 and creating databases through continuous deployment. In our system, the default 1Mb/10% autogrowth settings in SQL Server work badly with our data. Particularly as we ...
3
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2answers
1k views

SQL Server 2008 Query Saved in Logs?

Every time I create a query and run it to create a report I save the query in my Projects folder in case I have to rerun the query in the future or if I have to modify it for any reason but it seems ...
15
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2answers
3k views

SQL Server how to get around the transaction log filling up when updating a column to an int

I have a SQL Server 2005 table called BRITTNEY_SPEARS_MARRIAGES and it has the following columns: MarrigeId tinyint, HusbandName varchar(500), MarrigeLength int Now I have another table ...
27
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2answers
63k views

How to identify which query is filling up the tempdb transaction log?

I would like to know how to identify the exact query or stored proc which is actually filling up the transactional log of TEMPDB database.
5
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3answers
472 views

Is it possible to recover day's worth of queries from sql server log file?

I lost all data entered and edited in my system yesterday, and my ISP has announced to me that last night's backup is corrupt and cannot be recovered. Is there any way to access the database's log ...
5
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2answers
2k views

Transaction Log and mirroring - looking for dumbest explanation possible

First of all I must admit that I struggle with concept of Transaction Log. I mean - I do understand that it is Log of all Transactions that happen on database, but when it comes to properly putting it ...
5
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1answer
204 views

Does the PCI require to protect the Credit Card Info in the transaction log?

The PCI Data Security Standard https://www.pcisecuritystandards.org/documents/pci_dss_v2.pdf forbid storing Credit Card info in the transaction log 3.2.1 For a sample of system components, examine ...
8
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2answers
8k views

View delete statements in the Transaction log

Is it possible to view delete statements that have recently occurred in the Transaction Log?
2
votes
4answers
5k views

What is the purpose of having a table NOT LOGGED INITIALLY

I came across this recently. When defining a table in DB2 LUW (at least 9.5 or higher), you can define it as NOT LOGGED INITIALLY. Example from the book I read: CREATE TABLE products ( productID ...
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1answer
786 views

In Sybase, what can I do to figure out why my Transaction Log is filling up?

We have a process that runs each morning to load about 40,000 rows from one server to another. In the past few weeks, the process has been having a 'log suspend' once or twice a week. This is ...
2
votes
1answer
536 views

SQL Server 2005 Percent Log Used Alert fires too fast?

I have a SQL Server 2005 database thats roughly half a terabyte. Third party software that I don't control writes to the database. I have a Maintenance Plan which backs up the transaction log, and ...
2
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1answer
301 views

Initial recovery Postgres with backup in sync commit mode

I've got a master and a slave postgres 9.1.3 database. I would like to init the backup database for the first time. I did the following steps: Stopped master Copied all files to Slave Create ...