sql server clear transaction log

Tags: io os on admin SQL window C Windows method1, IP address is not configured correctly:Open the SQL Server Configuration Manager under Microsoft SQL Server 2005 Config tool, select the MSSQLSERVER protocol, and then double-click TCP/IP in the right window to check the con

shows that one row no longer exists in the second read or subsequent read because the row has been deleted by other transactions. Similarly, due to the insert operation of other transactions, the second or subsequent read of the transaction shows that a row does not exist in the original read.The above four problems will cause data inconsistency. We setThe level at which the transaction is prepared to acce

('sysdiagrams ', 'dtproperties ')5. Obtain the table name, field name, field type, and type length of the specified table [tb_phone ].SELECT SysObjects. name AS Tablename,Syscolumns. name AS Columnsname,Policypes. name AS DateType,Syscolumns. length AS DateLengthFROM Sysproperties RIGHT OUTER JOINSysobjects INNER JOINSyscolumns ON Sysobjects. id = Syscolumns. id INNER JOINPolicypes ON Syscolumns. xtype = policypes. xtype ONSysproperties. id = Syscolumns. id ANDSysproperties. smallid = Syscolumn

13.2.3 Deployment Log Shipping Initial ConfigurationSome initial configuration is required before the log shipping is deployed. You need to configure shared folders for replication of transaction log backups and backups, set up an agent run account and the primary DB instance to run the account, and configure the accou

words, the purpose of the backup is to guard against possible hardware failures, natural disasters, or data being illegally tampered with. Backups can be divided into full backups, differential backups, and transaction log backups. A full backup backs up the entire database, containing the database files, the address of the files, and the log sequence number rec

default log file storage location Which of the following folders stores the database files and log files when you create a new database: The default value is \ MSSQL \ Data in the installation directory of your SQL server.Of course, you can point to any other permitted path when you create a database.Method 1: (Create a database using the Enterprise Manager)Ent

Label:Why do we need transaction logs to delete or not add log files? The answer is no, if there is no transaction log, your database will not work at all!The transaction log supports the following operations:Transaction rollbackI

I once met a user who has a very large MSDB database and asked me to help find out why. Use sp_spaceused to find the data size of all tables. The problem is that SQL Server I once met a user who has a very large MSDB database and asked me to help find out why. Use sp_spaceused to find the data size of all tables. The problem is that SQL

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

include: Begin Tran commit Tran rollback Tran command Distributed transactionsTransactions that span multiple servers are called distributed transactions. SQL Server can be operated by DTC Microsoft Distributed Transaction Coordinator.To support distributed transactions. You can use the begin Distributed Transaction

to fill up the space. Clear Log Available DUMP TRANSACTION command, or Open database option trunc Log on chkpt, the database automatically clears log at intervals. Managing database log is one aspect that users must consider when

information information: After attaching the database, a new log file log is generated and the size of the new log file is 504K. You can also do this by using a command: Use master; exec sp_detach_db @dbname = ' TestDB '; exec sp_attach_single_file_db @dbname = ' TestDB ', @physname = ' D:program filesmicrosoft SQL