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SQL server first checks whether a view exists and then creates a view statement. SQL SERVER
If our statement is:
IF NOT EXISTS(SELECT 1 FROM sys.views WHERE name='Report_IndividualTicket')BEGINcreate
Tags: c blog http a int widthHow SQL Server truncates (Truncate) and shrinks (Shrink) transaction log classifications: SQL Server database backup restore 2010-01-25 14:321,708 people read comments (4) ReportWhen
server|window| Error | distributed | Resolving symptoms if you run a linked server query in SQL Server 2000 installed on Windows. NET server, the following error may be returned (even if MSDTC is running on the server):
Server:msg
Label:" This SQL job has been running every day well, I suddenly did not take effect? " Encounter this sudden problem, my heart is calm, things can not be inexplicable, because it is a SQL job problem, first need to view the job history sure enough a big x obvious don't want to continue to look at the wrong content: executed as user NT Authority\Network SERV
Like Oracle databases, SQL
The Server database also has transaction logs. Transaction logs are mainly used to record all transactions and the changes made to the database by each transaction. Transaction logs are one of the most i
All SQL Server activities generate locks. The smaller the lock unit, the more concurrent processing capability the higher the management lock overhead. It is difficult for SQL Server to find a balance between concurrency and performance. SQLServer has the following types of cons: 1. Shared locks are used for read-only
click the Add button, connect to the Backup database server, select the corresponding database; in initialize secondary Database window, select "No, the secondary database is initialized"; In the Copy Files window, enter the path to the backup log file (for example, F:\LogBackup) in the Back Up database server In the Restore
TRAN rolls back the entire transaction and sets the @ @trancount to 0.
There are two cases when executing the "rollback TRAN Tranname" statement:
If (Tranname previously established with "Save Tran tranname") @ @trancount value unchanged
Otherwise, @trancount decrease by 1
Note: The Save Tran Command does not make @ @trancount plus 1Analysis:Whenever a transaction
error message, contact your system administrator.
*/
The results show information about the oldest activity log, including the server process ID, the user ID, and the start time of the transaction. The key is the SPID and start time.
Once you have this information, you can use the dynamic management view (DMV) to v
way of not creating a log. Just as Oracle does not produce an archive.
Third, Server 2005: Empty the database log
When the log file is full and the SQL database cannot write to the file, there are two methods available:
Method One: Empty the
(X) lock to update. A deadlock occurs because two transactions are converted to exclusive (X) locks, and each transaction waits for another transaction to release the shared-mode lock.To avoid this potential deadlock problem, use the update (U) lock. Only one transaction at a time can obtain an update (U) lock on the resource. If the
exclusive (X) lock to update. A deadlock occurs because two transactions are converted to exclusive (X) locks, and each transaction waits for another transaction to release the shared-mode lock.To avoid this potential deadlock problem, use the update (U) lock. Only one transaction at a time can obtain an update (U) lock on the resource. If the
This section describes SQL statements, sqltransaction, and transactionscope.
All examples in this section run in SQL Server 2008 and vs 2008 environments. If SQL Server 2005 is not available, the same applies to SQL
Misunderstanding #20: After the log backup chain is damaged, a complete backup is required to restart the log chain.
Error
Transaction Log backup backs up all transaction logs since the last transaction
Myth #20: After breaking the log backup chain, a full backup is required to restart the log chain
Error
A transaction log backup backs up all transaction logs since the last transaction log
isolation is to avoid these 3 situations.Dirty read: Read data that has been modified but not committed by other transactionsNon-REPEATABLE READ: Two queries in the same transaction read different dataPhantom read: Two queries in the same transaction read a different number of recordsSome people may not understand the definition of phantom and non-repeatable reading, the biggest difference is essentially t
level to be completely isolated, a bit of concurrency ...). Therefore, SQL Server's default read commited is a good choice to strike a balance between isolation and concurrency. SQL Server passes the lock, just like a traffic light at a crossroads, to tell all concurrent connections that at the same time those resources can be read and those resources can be mod
This articleArticleIs the third article in the series. The addresses of the first two articles are as follows:
Transaction logs in SQL Server (I)-physical and logical architecture of transaction logs
Transaction Log in
Tags: setting from transaction isolation cannot query server fit Office Date databaseV. Lock and TRANSACTION isolation levelsTransaction ISOLATION level The simple thing is that when the transaction is activated, the control transaction causes the locking of the
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