sql server dba books

Label:Original: SQL Server execution Plan cacheTags: SQL server/mssql server/database/dba/memory Pool/Buffers OverviewUnderstanding the execution plan is important for database performance analysis, which involves statement profil

the features in the supported versions of SQL Server Books Online. Reason: This problem occurs because the SQL Server does not have all IIS 7.0 components installed on the computer. The following table lists the affected components. > Close the table

, use the rsdatabasename installation parameter to specify a new name for the Report Server data. 3.11 set the database compatibility level when upgrading from MSDE 2000 This issue applies only when you upgrade an MSDE 2000 instance to SQL Server express with advanced services. When you upgrade an MSDE 2000 instance to

(OLTP) SQL Server databases ", however, the techniques described in this article can also be used on other database platforms. At the same time, the skills I introduced are mainly intended for programmers. Although DBA is also a major force in optimizing databases, the optimization methods used by DBA are not covered

you try to grant this login permission to access this database, you may fail, indicating that the user already exists: Microsoft SQL-DMO (ODBC sqlstate:42000) Error 15023:user or role '%s ' already exists in the current database. about how to map logins to databases User to resolve orphaned SQL Server logins and integrated logins, see the following Microsoft Kno

finished, can not be normal backup I'm not sure, because disk space is not enoughBut as a DBA, it's at least a reason to trace.There are three questions that need to be traced:(1) Since when the database has been damaged???(2) The same error occurred in other libraries (unrecoverable I/O error: 2 (the system cannot find the file specified)???(3) This library is not moved from other servers, if it is moved over before the damage, or moved over after t

, such as sorting data. Each time SQL Server is started, a clean copy of The tempdb database is created based on the preset size of the model. Then it will automatically grow as needed. If you need a large tempdb database space, you can use the alter database command to set a larger default value. Search for the tempdb database in online books for more informatio

log wait are key indicators for investigating I/O path performance. Microsoft Knowledge Base822101: The waittype and lastwaittype fields in the sysprocesses tableThis section describes the waiting types and detailed the I/O waiting types related to diagnostic latency or blocked I/O conditions.Back to Top Summary Although blocking and latency I/O problems are rare in SQL Server deployment, they are historic

database between SQL servers For instructions on resolving orphaned users one by one using sp_change_users_login stored procedures, which can only resolve isolated users from standard SQL logins, see the following article in the Microsoft Knowledge Base: 274188 PRB: "Troubleshooting Orphaned Users Topic in the books Online is incomplete if the transfer of logins

in this article .) If a DBA determines that the memory is under pressure due to the high memory usage on the database server, this person is not comprehensive enough. As mentioned above, it is natural for databases to "like" The memory. Almost all DB servers have high memory usage (unless the maximum memory is set and the maximum memory is much lower than the server