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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 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
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 ar color OS using SP filesIntroductionThe transaction log in SQL Server is undoubtedly one of the most important parts of SQL Server. Because SQL
Label:Problems encountered in a project: The system log is too large, and later deleted with the DELETE statement (rather slow), the results of the database log becomes very large (almost 10G), so you have to delete the database log.Method:--partial logs in the backup system--select * into #keep from Ccssystemlog WHERE logtime > ' 2011-12-31 '--truncate TABLE Ccssystemlog--insert ccssystemlog SELECT * from
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,
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
try it out before I dared to start with the actual database. The specific operation process should be as follows: 1. Back up the database before you start. In the dark of night, the system is usually relatively idle, and it may be easy to handle, there is a database backup, in case of a problem found the next morning, at least can be restored to yesterday's work point, the risk is relatively small. 2. Open SQL Se
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
When the Server|sqlserver log file is full and the SQL database cannot write to the file, there are two methods available: One way: Empty the log. 1. Open Query Analyzer, enter command DUMP TRANSACTION database name with NO_LOG 2. Then open Enterprise Manager-right you want
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.
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
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
1. Use backup log database with no_log to clear logs Changing the fault recovery model in database properties to "simple" can greatly slow down log growth. If you adjust the Restoration Model to a simple one, it does not support time point restoration, but the log file will be small. If the data is important, we recom
to the login account, unable to obtain all the space capacity of the disk, so changed the administrator's account login, found that the SQL Server has a bad log capacity will be nearly 90G, finally found the disk full reason, The next step is how to solve it.At first, I listened to my colleagues ' suggestions directly moving this
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