sql recovery model

The batch log recovery mode of the SQL Server recovery model. Do you want to know why the transaction log file is getting bigger and bigger? Transaction logs are sometimes larger than your actual database files, especially in the case of application data warehouses. Why is this happening? How to control its size? How d

the checkpoint process if the time specified is short. Typically, the "dirty" page is written to disk, and Lazy writer has a lot more to do than checkpoint. Summary This article briefly describes the concept of Wal and the role that logs play when modifying database objects. Checkpoint and Lazy Writer are also described, and the understanding of these concepts is the basis for understanding SQL Server DBA work. The following article will describe th

Do you want to know why the transaction log files are getting bigger? Transaction logs can sometimes be even larger than your actual database files, especially if you are applying a data warehouse. Why is this happening? How do I control its size? How does the database Recovery model control transaction log growth? In this series of articles, we will answer each of them. Bulk Log

Tags: style blog http ar color OS using SP forThis article is a series of articles in the fourth and the last, this article requires the first three articles of knowledge as the basis, the first three articles address as follows:On transaction log in SQL Server (i)----the physical and logical architecture of transaction logsTalking about transaction log in SQL Server (ii)----The role of the transaction log

. But you have to be careful when you are creating the following actions if your database is in simple recovery model and is part of replication as output of these actions will not be replicated Create Index Truncate table BULK INSERT BCP Select... The reason... well the replication engine will not be able to pick up these changes as these changes will only log page allocations and de-allocations.

very similar. The active part of the log is maintained as usual, so that whenever the database is started in a simple mode, the recovery process enters and the data file is reconciled with the transaction log content. However, in simple mode, all virtual log files (VLF) are marked as inactive (recoverable) in the 2nd chapter, and are automatically truncated during periodic database checkpoints. This means that when checkpoints occur, any VLF that has

Misunderstanding #28: Several misunderstandings about the large capacity transaction log recovery model A common DML operation can be "minimal log" No. In the bulk transaction log recovery model, only a small number of bulk operations can be "minimally logged", and a list of such operations can be found in operations

The SQL Server backup and restore component provides basic security for protecting critical data stored in a SQL Server database. To minimize the risk of catastrophic data loss, you need to back up the database regularly to preserve the changes made to the data. A well-planned backup and restore strategy helps prevent SQL Server 2012 notes Sharing-22: Understandi

This article is the third in a series of articles, the first two addresses are as follows:On transaction log in SQL Server (i)----the physical and logical architecture of transaction logsTalking about transaction log in SQL Server (ii)----The role of the transaction log when modifying dataIntroductionUnder the simple recovery

Problem One of the first things to do when managing SQL Server is to establish an appropriate backup plan to minimize the loss of any data in a failed event. After setting up a backup plan, of course, you have to do some database configuration, which is established to make sure that you can back up the database correctly. In this article we will look at the different recovery models provided by

misunderstanding #28: Several misunderstandings about the large capacity transaction log Recovery Model A common DML operation can be "minimal log" No. Only a small number of bulk operations can be "minimally logged" under the bulk transaction log recovery model, and the list of such operations can be Operations Can

Tags: CREATE table corruption loss size TE suspect data tool log fileData type MSSQL 2008R2 data size 352 MB fault detection Server A few times after the power outage database suspicious cannot attach message 1813, Level 16, State 2, line 1th cannot open the new database ' YXHIS20182 '. CREATE DATABASE abort. Msg 1813, Level 16, State 2, line 1th cannot open the new database ' YXHIS20182 '. CREATE DATABASE abort. Message 9003, Level 20, State 1, the log scan number (2732:125:21) of the log scan

"Customer Name": Guizhou Tongren driving Person Training Center"Software name": UF T3 Universal Edition"Database Version": MS SQL Server 2000 "database size": 1GB X 6 (3 accounts for a total of 6 years)."Problem description": Due to server poisoning or Kaka, the customer sent the server computer to the installed shop to redo the operating system. Not detailed to inform the use of the computer, resulting in the entire hard drive by the repair shop tech

Label:Recovery mode SQL Server supports three recovery models: Simple-no log backups are supported, and automatic checkpoints truncate portions of the transaction log that are not used Complete-Requires a log backup. Support Point Recovery Bulk log-requires a log backup. Reduce the amount of log space usage by logging most bulk operations in a m

Tags: multiple user mode database alter modify DISTINCT ACK loss comparisonOriginal: SQL Server Backup and Recovery series backup and restore under three simple recovery modelsI. OverviewIn front of some theoretical knowledge of backup, this article starts with backup and restore under the simple recovery

Brief introductionThe recent test server for data archiving, during which the programmer found a problem, lack of space, I look for reasons to find the log file explosion. The database is then changed to a simple recovery model, but this problem still exists. After querying the data, it was found that the log file still increased in simple mode.Simple conceptSimple reco