sql transaction log reader

Tags: time detail Way NET write database backup ICA database management ATI in database management, database backup is very important. The Maintenance Plan Wizard makes it easy to complete a database backup. The following example shows how to implement a backup of a database with a backup strategy of One full backups per Sunday, differential daily backups (except Sunday), and hourly log backups. In addition, you can specify to delete outdated backu

Someone asked why SQL Server data has changed, but why is the best modification date of database files and log files not changed. In fact, this is a normal behavior. The modification date of the SQL Server File is when the SQL Server closes the file Shutdown or the database is Detach, Offline) or the

Server Method One: --Let log no longer grow, but cannot compress logEXEC sp_dboption ' your_dbname ', ' trunc. Log ', ' TRUE ' Method Two: --Super strong database file and log file compression,--After compression may cause the database to not be normal access, restart the database canDUMP TRANSACTION [database name] w

Tags: Database sql Server3. Configuration steps:Primary Server (A-machine) settings(1) Enable log Shipping ConfigurationRight-click the database for which you want to configure log transport->tasks-> ship Transaction logs...->enable this as a primary database in a log shippi

overhead is very large for a large OLTP transaction database in seconds. In addition, database users are concerned with data changes, which are queried from the database application software, rather than through the WINDOWS file system. In addition, after the database is started, only SQL Server can exclusively update data files and log files, so there is no

-- =============================================--Script Template-- =============================================--For Log U645 start--Step 0: Backing up the database--Step 1: Execute the following SQL--Step 2: Verify the effect on the interfaceBEGINTRYBEGIN TRANPRINTN'Log U645 start'-- ...UPDATE ...SET ...WHEREId= ...;COMMIT TRANPRINTN'Log U645 End-ok'ENDTRYBEGINCATCHPRINTN'Log U645 End-fail' PRINTerror_m

I. Methods for deleting Database Log Files When you run an SQL statement, the database reports that the transaction log is full and then reports an error. How to delete the database logs and try to delete the logs for half a day? Now we provide two ways to delete log files.

-- Create a Test Database Create Database DB Go -- Back up the database Backup database dB to disk = 'C: \ dB. Bak' with format Go -- Create a test table Create Table dB. DBO. tb_test (id int) -- Delay 1 second, and then perform subsequent operations (this is because the SQL server has a time precision of up to 3% seconds. If there is no delay, the Restoration Operation to the time point may fail) Waitfor delay '00: 00: 01' Go -- Assume that t

Because SQL2008 optimizes file and log management, the following commands can be run in SQL2000 and 2005, but SQL2008 does not support clearing logs by no_log.1. Clear logs The code is as follows:Copy code Dump transaction database name WITH NO_LOG 2. Truncate transaction logs: The code is as follows:Copy code Backup

Someone asked why SQL server data has changed, but why is the best modification date of database files and log files not changed. In fact, this is a normal behavior. The modification date of the SQL Server File is when the SQL server closes the file (shutdown or the database is detach, offline) or the

SQL in use every query will generate a log, but if you do not go to clean up, it may be full of hard, the author encountered such a situation, the direct site backstage are not going to go. Let's learn how to clean this log together. SQL2005 Empty Delete log: Copy code code as follows: Backup

Ms SQL database log Compression MethodMs SQL performance is very good, but the database has been used for a period of time, the database has become very large, the actual amount of data is not large. It is generally caused by database logs! The growth of database logs can reach several hundred MB.The cost of MSSQL virtual hosts on the Internet is also high. To av

Ms SQL database log Compression Method Ms SQL performance is very good, but the database has been used for a period of time, the database has become very large, the actual amount of data is not large. It is generally caused by database logs! The growth of database logs can reach several hundred MB. The cost of MSSQL virtual hosts on the Internet is also high.

--Create a test databaseCREATE DATABASE Db Go --Backing up the database BACKUP DATABASE Db to disk= ' C:\db.bak ' with FORMAT Go --Create a test table CREATE TABLE Db.dbo.TB_test (ID int) --Delay 1 seconds, and then do the following (this is because SQL Server's time precision is 3% seconds, without delay, may cause restore to point in time the operation failed) WAITFOR DELAY ' 00:00:01 ' Go --Suppose we now mistakenly delete the Db.dbo.TB_test th

Using SQL Server2005 to empty a database can be implemented with the following SQL Backup Log Dnname with no_log Go Dump TRANSACTION dnname with NO_LOG Go Use Dnname DBCC Shrinkfile (2) Go However, this stored procedure has been canceled in SQL Server2008, and in 200

1. OverviewLOG Shipping The database backup process provided for SQL Server. It can replicate the entire database to another server. In this case, the transaction log is also periodically sent to the backup server for data recovery purposes, which keeps the server in a hot backup state and is updated as the data changes. It also provides monitoring servers (monit

Truncating the transaction log is a logical operation, just marking a portion of the log as ' no longer needed ' so you can reuse this space, truncation is not a physical operation, does not reduce the size of the file on disk,To reduce the physical size, you must shrink.-----------Sometimes a backup can not truncate the log:This is because the user opens a