transactions in T-sql:1 starting transaction: BEGIN TRANSACTION2 COMMIT TRANSACTION: COMMIT Transaction3 Rolling back transactions: ROLLBACK TRANSACTIONTransaction classification:1 Explicit transactions: explicitly specify the beginning of a transaction with BEGIN transaction
Tags: style blog http io ar color OS using SPThis article is the second in a series of articles in case you haven't read the first article. The previous article address is as follows:On transaction log in SQL Server (i)----the physical and logical architecture of transaction
This articleArticleThis is the second article in the series, in case you have not read the first article. The address of the previous article is as follows:
Transaction logs in SQL Server (I)-physical and logical architecture of transaction logs
Introduction
Each SQL
Tags: style blog http ar color OS using SP filesIntroductionThe transaction log in SQL Server is undoubtedly one of the most important parts of SQL Server. Because SQL
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
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
server| Data | database
The steps that you must perform when the transaction log expands to an unacceptable limit. The extension of the transaction log will cause the Microsoft SQL Server
up the changes after the differential backupno_truncate [email protected]:45am: -- BACKUP LOG temp to DISK = ' D:\MSSQL10. Mssqlserver\mssql\bak\temp_log2.bak ' with INIT, no_truncate ;GO--2. Restore:A. Deleting the original database (back up the original mdf,ldf file First )--drop Database TempB. Restore full backup , norecovery mode, last recovery selection recovery --restore Database temp from disk = ' D:\MSSQL10. Mssqlserver\mssql\bak\temp
disaster recovery solutions: AlwaysOn availability Groups, database mirroring, and log shipping.
2impact on Database startupWhen the database restarts or restores to the last time, the database will enter the recovery state, normally, this state lasts a few 10 seconds, but in special cases, it will take a very long time, even a few hours, if this step fails, the database enters into the suspended suspect state, Not available for normal use.so,
, another client can run sp_replcmds, and becomes the new log reader.A warning message number 18759 is added to both the Microsoft SQL Server error log and the Microsoft Windows application L og if sp_replcmds is unable to replicate a text command because the text pointer were not retrieved in the same TR Ansaction.5,
Label:This article was reproduced from the blog of Birch Tsaihttp://www.cnblogs.com/lyhabc/archive/2013/07/16/3194220.html explain SQL Server transaction log recordsAs you know, under the full recovery model, SQL Server records th
Tags: blog http os using AR for file SP dataAfter AlwaysOn is configured, because there is no use of the full recovery model, the simple or bulk-logged mode is not available, so the log is growing and cannot be emptied using the change recovery modeManual operation shrinking or truncating the log is also invalidAfter reading some articles, it was found that someone usedPrimary instance out of availability g
When a system fails, it can be used to recover data to resolve database failures as long as there is a data log. As a SQL Server database administrator, it is important to understand the role of data log files and how to use them to troubleshoot common failures in some databases. Since the
CatalogueWhat is a transaction logComposition of the transaction logTransaction log Size Maintenance methodsTruncateShrinkIndex fragmentationSummarizeWhat is a transaction logTransaction Log is a record of a series of actions performed on a database management system and use
Transaction logs are very important but often ignored in the database structure. Since it is not as active as the schema in the database, few people are concerned about transaction logs. Transaction logs are records of database changes. They can record any operations on the database and save the record results in an independent file.
The transaction log, or Transaction logs, is a very important but often overlooked part of the database structure. Because it is not as active as the schema in the database, few people are concerned about the transaction log.
The transa
Source: http://www.study-code.com/database/sql-server/76961.htm
We know that the SQL Server transaction log is mainly used to record all the changes made to the database by all transactions. If the system fails, it will become th
Original: SQL Server full, differential, and transaction log backup and restore (script and GUI implementation) [original]A Scripts for full backups, differential backups, and transaction log backups--Full backup DatabaseBACKUP DA
Label:The SQL Server transaction log file is an important part of the database file, and the transaction log is used primarily to store the database's modification records. In order to achieve higher write efficiency and performan
settings:Right-click on "SQL Server Database"----Click general--Select surface Area Configurator--then change the Cmdshell property to True, as After you have done the above steps, start the Directory Trust command through Management Studio: exec ' net use \\172.16.3.79\logbackup [email protected] #1/user:172.16.3.79\enadmin ';\\172.16.3.79\logbackup--is a shared directory172.16.3.79\enadmin--the secon
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