sql server execution plans second edition pdf

... 3-540-27703-X 2nd Edition Springer Berlin Heidelberg New YorkISBN-13 978-3-540-27703-3 2nd Edition Springer Berlin Heidelberg New York2nd edition 2006 ISBN 3-540-01297-4 1st Edition Springer Berlin ... acid-free paper 2/YL – 5 4 3 2 1 0 Trang 5Robert Huber Manfred Eigen Kurt WüthrichTrang 6This second edition presents new chapters on (a) the utilization of mutants as resolution nanosensors of ... singlechain The next level, the secondary structure, refers to certain common repeatingstructures of the backbone of the polypeptide chain There are three main types ofsecondary structure: helix,

Ngày tải lên: 27/06/2014, 10:20

... Connections SAP DB SQL Server 2008 Database Tier Trang 3 eCommerce – with SQL Clustering Windows 2003 Advanced Server Windows 2003 Advanced Server SQL Server 2008 (Virtual SQL Server) SCSI Local ... Mirroring Topology with Snapshots SQL Server 2008 SQL Server 2008 Mirror Server Principal Server Role: PARTNER Role: PARTNER SQL Server 2008 Principal Server Active Passive Point-in-Time ... Examples of SQL Server Implementations Client Tier client Web Services client Application Tier Application Server 1 Application Server 2 Application Server n Database Tier SAP DB SQL Server

Ngày tải lên: 05/07/2014, 02:20

... statements are not complet-ing successfully TSQL_Duration Traces the total execution time for each completed SQL statement or RPC TSQL_Grouped Traces the start of SQL statements and RPCs, grouped by Application, ... displayed next to the column in the column list The filtering options in SQL Server 2008 are similar to those available in SQL Server 2005 Which options are available depends on the type of column ... ClientProcessId TSQL_Locks Traces the completion of SQL statements along with the key lock information that can be used to troubleshoot lock timeouts, deadlocks, and lock escalation issues TSQL_Replay

Ngày tải lên: 05/07/2014, 02:20

... SQL Server 2008 functionality through this provider SQLOLEDB, is specialized for accessing SQL Server data and is distributed with MDAC COM applications may continue to use it to access SQL Server ... not installed on the server, SQL Server uses its built-in self-signed certificate (A server administrator may also create and save a self-signed certifi-cate by using SQL Server 2008 via the new ... or they can switch to SQLNCLI for the latest functionality as MSDASQL, is distributed with MDAC ADO applications can continue to use it to access SQL Server 2008, but SQL Server does not support

Ngày tải lên: 05/07/2014, 02:20

... DB SQL Server 2008 Primary Failover xyz DB SQL Server 2008 Hot Spare (Fail-over) xyz DB SQL Server 2008 USA (Headquarters) Enabling/Partitioning xyz DB SQL Server 2008 Europe Server xyz DB SQL ... Trang 5SQL Server 2008 Primary OLTP Reporting/ODS OLTP DB SQL Server 2008 Reporting Server Rpt DB SQL Server 2008 North America Region Regionalization (multiple owners) xyz DB SQL Server 2008 ... Distribution server—The distribution server (or distributor) can either be on the same server as the publication server or on a different server (in which case it is a remote distribution server) This server

Ngày tải lên: 05/07/2014, 02:20

... with the ROWGUIDCOL prop- erty, SQL Server automatically uses that column for the row identifier. If not, SQL Server adds a column called rowguid to the table. SQL Server also places an index on ... general, SQL Server 2008 data replication is exceptionally easy to set up via SQL Server Management Studio wizards. However, if you use the wizards, you need to be sure to generate SQL scripts ... how you set it up. SQL Server supports multiple triggers of the same type on a table, so merge triggers do not interfere with user-defined triggers on the table. Finally, SQL Server adds new system

Ngày tải lên: 05/07/2014, 02:20

... columns Refer to Chapter 47, “Using XML in SQL Server 2008,” and the SQL Server Books Online documentation for further details Creating Indexes with SSMS SQL Server 2008 has many options for creating ... advantages Creating Indexes with T-SQL Transact-SQL (T-SQL) is the most fundamental means for creating an index This method was available in all previous versions of SQL Server It is a very powerful ... columns are the best candidates SQL Profiler is discussed in more detail in Chapter 6, “SQL Server Profiler.” In addition, Chapter 34 discusses the use of the SQL Server Profiler and Database Engine

Ngày tải lên: 05/07/2014, 02:20

... integrity has remained the same in SQL Server 2008 Several features that were added in SQL Server 2005, such as cascading integrity constraints, are still supported in SQL Server 2008 The lack of change ... managing indexes with T-SQL, but the ALTER INDEX statement provides the bulk of what you need Many of the other T-SQL options that you may have used for managing indexes in SQL Server 2000 and earlier, ... is not disabled, SQL Server requires enough temporary disk space in the database to store both the old and new versions of the index However, if the index is disabled first, SQL Server can reuse

Ngày tải lên: 05/07/2014, 02:20

... versions of SQL Server that did not support the reuse of execution plans for T-SQL statements or batches Applications connecting to SQL Server 2000 and higher should use the sp_executesql system ... quite simple SQL Server parses the commands sent to it in a batch by searching for keywords Stored procedure names aren’t keywords If SQL Server finds a procedure name among the SQL statements, ... statements, chances are that SQL Server will return an error message because it tries to treat it as part of the preceding command Sometimes the execution is successful, but SQL Server doesn’t execute

Ngày tải lên: 05/07/2014, 02:20

... Using SQL Server Management Studio One of the great tools available in the SQL Server 2000 Query Analyzer, the built-in SQL Debugger, was left out of SQL Server Management Studio (SSMS) in SQL Server ... usage master 1 C:\MSSQL2008\MSSQL10.SQL2008UNLEASHED\MSSQL\DATA\master.mdf PRIMARY 4096 KB Unlimited 10% data only mastlog 2 C:\MSSQL2008\MSSQL10.SQL2008UNLEASHED\MSSQL\DATA\mastlog.ldf NULL ... usernames, and so on. SQL Server Profiler stored procedures Used by SQL Server Profiler to monitor performance and activity. SQL Server Agent stored procedures Used by SQL Server Agent to manage

Ngày tải lên: 05/07/2014, 02:20

... Trang 1Query Plan Caching SQL Server 2008 has a pool of memory used to store both execution plans and data The amount of memory allocated to execution plans or data changes dynamically, ... the matching execution plan, thereby saving the overhead of having to recompile an execution plan for each ad hoc SQL state-ment issued If no matching execution plan is found, SQL Server is forced ... sp_executesql, SQL Server reuses the exist-ing query plan (if it is still in the plan cache) and simply substitutes the different para-meter values Trang 2Although SQL Server can also match query plans

Ngày tải lên: 05/07/2014, 02:20

... thread for its execution Prior to query execution time, SQL Server determines whether the current system state and config-uration allow for parallel query execution If parallel query execution is ... both compile-time and runcompile-time execution plans SQL Server 2008 also automates and improves the thread partitioning strategy for parallel query execution plans on partitioned objects In addition ... processor in SQL Server 2008 includes parallel query processing—an execution strategy that can improve the performance of complex queries on computers with more than one processor SQL Server inserts

Ngày tải lên: 05/07/2014, 02:20

... batch or statement text from SQL Server Profiler (See Chapter 6 for more information on using SQL Server Profiler to capture SQL queries.) Also, as with the XML query plans passed to the USE PLAN ... instructs SQL Server to use an existing query plan for a query as specified by the designated xml_plan The USE PLAN query hint can be used for queries whose plans result in slow execution times ... SQL Server 2008, if a SQL statement is executed without parameters, the Query Optimizer parameterizes the statement internally to increase the possibility of matching it against an existing execution

Ngày tải lên: 05/07/2014, 02:20

... SHOWPLAN_XML is set to ON, SQL Server does not execute the query but returns execution information for each T-SQL batch as an XML document The execution plan information for each T-SQL batch is contained ... is available in the same directory as the SQL Server installation, which by default is C:\Program Files\Microsoft SQL Server\100\Tools\Binn\schemas\sqlserver\2004\07\ showplan\showplanxml.xsd ... returning the query plans for the currently running T-SQL batches, SQL Server 2008 also provides the sys.dm_exec_query_stats and sys.dm_exec_cached_plans DMVs The sys.dm_exec_cached_plans DMV can be

Ngày tải lên: 05/07/2014, 02:20

... Server Viewing Locking Activity with SQL Server Profiler Another tool to help you monitor locking activity in SQL Server 2008 is SQL Server Profiler SQL Server Profiler provides a number of lock ... you are monitoring a SQL Server 2008 named instance rather than a default instance of SQL Server 2008, the SQL Server performance counters are listed under the name of the SQL Server instance rather ... Performance Monitor for monitoring SQL Server performance, see Chapter 39, “Monitoring SQL Server Performance.” SQL Server Lock Types Locking is handled automatically in SQL Server The Lock Manager chooses

Ngày tải lên: 05/07/2014, 02:20

... following tasks on the SQL Server instance where you want to host the MDW: 1 Ensure that SQL Server Agent is running (for information on starting SQL Server Agent, see Chapter 16, “SQL Server Scheduling ... Figure 39.3 Trang 2TIP If you’ve already created a repository database for the SQL Server Utility (see the “SQL Server Utility” section later in this chapter), you must use this same database ... Logical Writes %, Disk I/O Usage, Memory Usage, and Network Usage, plus SQL Server Wait statis-tics by wait type and SQL Server activity Figure 39.9 displays an example of the Disk Usage Summary

Ngày tải lên: 05/07/2014, 02:20

... pages, and stolen pages SQLSERVER:Memory Manager: Total Server Memory(KB) The total amount of dynamic memory the server is currently consuming SQLSERVER:Memory Manager: SQL Cache Memory(KB) The ... process (SQL Server, in this case) SQLSERVER:Buffer Manager: Buffer cache hit ratio The percentage of pages that were found in the buffer pool without having to incur a read from disk SQLSERVER:Buffer ... either Process: Working Set: SQLServeror MSSQL: Memory Manager: Total Server Memory (KB)counters These counters indicate the current size of the memory used by the SQL Server process If these numbers

Ngày tải lên: 05/07/2014, 02:20

... LATITUDED830-W7 Microsoft SQL Server ReportWG1 60 2010-05-02 19:06:21.100 LATITUDED830-W7 Microsoft SQL Server OLTPWG1 54 2010-05-02 21:03:03.020 LATITUDED830-W7 Microsoft SQL Server You can also ... Performance Monitor via a couple of new performance counters: SQLServer: Resource Pool Stats SQLServer: Workload Stats An instance of the SQLServer: Resource Pool Statscounter is available for each ... executing within SQL Server The group_idcolumn relates the information to Resource Governor workload groups sys.dm_exec_cached_plans—Returns a row for each query plan cached by SQL Server in the

Ngày tải lên: 05/07/2014, 02:20

... normalization rules to be able to cram more fields into a table Spatial Data Types SQL Server’s support of SQLCLR allows for very rich user-defined types to be utilized For example, a developer ... data to be stored and queried in the database, instead of just strings and numbers SQL Server 2008 makes use of SQLCLR to support two new NET CLR data types for storing spatial data: GEOMETRYandGEOGRAPHY ... tables that have lots of columns Sparse Columns: Good or Bad? There is some disagreement in the SQL Server community whether or not sparse columns are appropriate A number of professionals are of

Ngày tải lên: 05/07/2014, 02:20

... without specifying BINARY BASE64, although SQL Server requires that the primary key of the table containing the binary data be selected. This is so that SQL Server can generate a path to the binary ... powerful, oft-maligned, somewhat daunting mode of SQL Server XML production. It allows for the shaping of row data in any desirable XML structure, but the SQL required to produce it can easily end up ... the second SELECT statement (where NULL is supplied for ScrapReason!1!!cdata) because Name is selected in this column in the first SELECT. The primary key ptg 1880 CHAPTER 47 Using XML in SQL Server

Ngày tải lên: 05/07/2014, 02:20