hướng dẫn học microsoft sql server 2008

... a specific version of a database engine — SQL Server 2008, for example, generating the DDL for the actual tables, keys, and attributes. Typically, the SQL DDL layer generalizes some entities, ... implementation independent: It could end up on Oracle, SQL Server, or even Access. Some designers refer to this as the ‘‘logical model.’’ ■ SQL DDL Layer: This phase concentrates on performance ... without working through the SQL DLL Layer design phase is a certain path to a poorly performing database. I’ve seen far too many database purists who didn’t care to learn SQL Server implement conceptual

Ngày tải lên: 04/07/2014, 09:20

... Davidson (aka Dr SQL) and I co-present a session at conferences on database design I recommend his book Pro SQL Server 2008 Relational Database Design and Implementation (Apress, 2008). Summary ... the generic pattern or property bag/property table pattern, illustrated in Figure 3-15 In the SQL Server 2000 Bible, I called it the ‘‘dynamic/relational pattern.’’ continued Trang 3FIGURE 3-15 ... extract the data and return a normalized data set This has the advantage of being usable in normal SQL queries, but performance and inserts/updates remain difficult Either solution defeats the dynamic

Ngày tải lên: 04/07/2014, 09:20

... installing SQL Server 2008 over an installation of SQL Server 2000 or 2005, but I strongly recommend that you use a side-by-side upgrade process This method begins with a fresh installation of SQL Server ... I’ve heard nothing but good stories about SQL Server 2008 upgrades With SQL Server installed, the next chapter moves on to connecting clients to SQL Server ... which SQL Server will be installed AdminAccount The admin user account of the target server where SQL Server will be installed AdminPassword The password for the admin user account of the target server

Ngày tải lên: 04/07/2014, 09:20

... Control SQL Server Agent jobs ■ Job Activity Monitor: View job activity ■ Alerts: Configure SQL Server Agent alerts ■ Operators: Set up SQL Server Agent operators ■ Proxies: Manage SQL Server ... forget that with SQL Server 2008, you can now open a new query connected to multiple servers using the Registered Server’s server group context menu In some extreme cases, if SQL Server cannot seem ... Error Logs: View SQL Server Error Logs Trang 2Because Management Studio and SQL Server are communicating as client and server, thetwo processes are not always in sync Changes on the server are often

Ngày tải lên: 04/07/2014, 09:20

... SMO to automate SQL Server administration Using PowerShell to extract SQL Server data New SQL Server 2008 PowerShell features PowerShell is the new scripting environment for the Microsoft Windows ... Settings\{user}\Application Data\Microsoft\ Microsoft SQL Server\100\Tools\Shell\Templates\ There’s more to saving templates than meets the eye A common copy is stored here: %ProgramFiles%\Microsoft SQLServer\100\Tools\Binn\ ... from Microsoft at www.microsoft.com/powershell/ It’s also automatically installed when SQL Server 2008 is installed, unless it’s already present PowerShell is included with the Windows Server 2008

Ngày tải lên: 04/07/2014, 09:20

... have a text file calledservers.txtthat contains a list of servers, one server name per line The file might resemble something like this: SQLTBWS SQLTBXP SQLTBW7 SQLPROD1 SQLPROD2 By using theGet-Contentcmdlet, ... Integration Services 10.0 Running MSOLAP$INST01 SQL Server Analysis Services (INST01) Running MSSQL$INST01 SQL Server (INST01) Running MSSQL$INST02 SQL Server (INST02) In this example, PowerShell ... Running lanmanserver Server Running lanmanworkstation Workstation Running LmHosts TCP/IP NetBIOS Helper Running MSDTC Distributed Transaction Coordinator Running MsDtsServer100 SQL Server Integration

Ngày tải lên: 04/07/2014, 09:20

... [System.Reflection.Assembly]::LoadWithPartialName(’Microsoft.SqlServer.SMO’) | out-null # Instantiate a new SMO Server object and connect to server SQLTBWS\INST01 $s = new-object (’Microsoft.SqlServer.Management.Smo.Server’) ‘SQLTBWS\INST01’ ... a server (using Windows Authentication) by issu- ing the following command: $sqlsvr = new-object (’Microsoft.SqlServer.Management .Smo.Server’) ‘MyServer’ The $sqlsvr variable now contains a Server ... programmatic way to manage Microsoft SQL. SMO can be used to manage SQL Server 2000, 2005, and 2008. It was introduced with SQL Server 2005, but supports the management of SQL Server 2000 instances

Ngày tải lên: 04/07/2014, 09:20

... datatype objects $dtint = [Microsoft.SqlServer.Management.Smo.Datatype]::Int $dtvchar100 = [Microsoft.SqlServer.Management.Smo.Datatype]::NVarChar(100) $dtdatetm = [Microsoft.SqlServer.Management.Smo.Datatype]::DateTime ... [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SMO") | out-null $s = new-object (’Microsoft.SqlServer.Management.Smo.Server’) ‘MyServer\MyInstance’ $db = $s.Databases[’AdventureWorks’] $scrp = new-object (’Microsoft.SqlServer.Management.Smo.Scripter’) ... features created for SQL Server 2008 SQLPS.exe SQL Server 2008 incorporates PowerShell into its management toolset As part of Microsoft’s Common Engineering Criteria, all server tools now incorporate

Ngày tải lên: 04/07/2014, 09:20

... drive and then SQL Server can be navigated like the file system There are four main directories under SQLSERVER: — SQL, SQLPolicy, SQLRegistration, and DataCol-lection: ■ The SQL folder provides ... of SQL Server 2008 You can browse the SQLSERVER file system just like a disk file system Issuing the commandcd SQL (orSet-Location SQL) and running theGet-ChildItemcmdlet returns the local server ... through the SQL Server objects The URN for theHumanResources.Employeetable in AdventureWorks2008on SQLTBWS\INST01 is as follows: Server[@Name=’SQLTBWS\INST01’]\Database[@Name=’AdventureWorks2008’]\

Ngày tải lên: 04/07/2014, 09:20

... and SQL Server includes several useful functions for that SQL Server stores both the data and the time in a single data type It also has types for date only, time only, and zone-aware times T-SQL ... time boundaries New to SQL Server 2008: ■ SysDateTime(): Returns the current server date and time to the nearest hundred nanoseconds ■ SysUTCDateTime(): Returns the current server date converted ... With SQL Server 2008 you can develop three types of user-defined functions, as explained in Chapter 25, ‘‘Building User-Defined Functions.’’ Trang 9User information functionsIn a client/server

Ngày tải lên: 04/07/2014, 09:20

... Date Functions There are two supported types: DateTime and DateTime2 DateTime2 is new to SQL Server 2008 and represents time to a much finer granularity: within 100 nanoseconds. ■ DatePart(date ... Campbell 31 Alexia Melanie Campbell 30 Adam This section discusses functions that are new to SQL Server 2008 You will take a look at the functions and then see the results of some queries ToDateTimeOffset(expression,time_zone): ... date part being extracted: select DATEDIFF(year,’september 4 2008’,’november 10 2009’) Result 1 select DATEDIFF(month,’september 4 2008’,’november 10 2009’) 2 The following query calculates the

Ngày tải lên: 04/07/2014, 09:20

... versions ■ ServerName: The full server and instance name For example, the following code returns SQL Server engine edition and version information for my current instance of SQL Server: SELECT SERVERPROPERTY ... heart of SQL, so change here occurs slowly The only item to watch for with joins and unions is the ANSI 89 style outer joins If you’re upgrading from SQL Server 2000 directly to SQL Server 2008, ... SQL Server: SELECT SERVERPROPERTY (’ServerName’) AS ServerName, SERVERPROPERTY (’Edition’) AS Edition, SERVERPROPERTY (’ProductVersion’) AS ‘ProductVersion’, SERVERPROPERTY (’ProductLevel’) AS

Ngày tải lên: 04/07/2014, 09:20

... Earlier versions of SQL Server extended the ANSI SQL 89 legacy join syntax with outer condition While this syntax worked through SQL Server 2000, it has been deprecated since SQL Server Trang 9Having ... deprecated since SQL Server Trang 9Having said that, SQL Server supports backward compatibility, so if the database compatibility level isset to 80 (SQL Server 2000), then the ANSI 82 style outer joins ... sources (tables, views, CTEs, subqueries, etc.); a SQL ServerSELECTstatement may refer to up to 256 data sources That’s a lot of joins Because SQL is a declarative language, the order of the data

Ngày tải lên: 04/07/2014, 09:20

... 6Merging data is the heart of SQL, and it shows in the depth of relational algebra as well as the power and flexibility of SQL From natural joins to exotic joins, SQL is excellent at selecting ... data from multiple data tables The challenge for the SQL Server database developer is to master the theory of relational algebra and the many T-SQL techniques to effectively manipulate the data ... again anytime soon) As long as the total number of tables referenced by a query is 256 or fewer, SQL Server handles the load Intersection union An intersection union finds the rows common to both

Ngày tải lên: 04/07/2014, 09:20

... subqueries ■ With SQL Server 2008, Microsoft adds row constructors that can be used in the subquery to provide hard-coded values to the query ■ Also new with SQL server 2008 is composable SQL — a new ... Subqueries?Subqueries are fundamental to SQL and there’s been a steady evolution of their capabilities Significant recent improvements include the following: ■ SQL Server 2005 saw the introduction of ... new way to connect together different parts of the SQL query, it opens new doors for experimentation and building new queries It’s good to see Microsoft continue to evolve and progress in critical

Ngày tải lên: 04/07/2014, 09:20

... icrosoft continues to evolve T-SQL’s ability to aggregate data. SQL Server 2005 included the capability to roll your own aggregate functions using the .NET CLR. SQL Server 2008 expands this feature ... query. FIGURE 11-3 Composable SQL is an evolution of the inserted and deleted tables. Output Select From Output Inserted Deleted Insert Select From SQL 2008 SQL 2005 SQL 2000 DML Insert, Update, ... Data.’’ In SQL Server 2008, composable SQL can place the DML statements and its OUTPUT clause in a sub- query and then select from that subquery. The primary benefit of composable SQL, as opposed

Ngày tải lên: 04/07/2014, 09:20

... Normally, SQL Server groups by every unique combination of values in every column listed in the GROUP BYclause Grouping sets is a variation of that theme that’s new for SQL Server 2008 With grouping ... single expres-sion A more severe limitation is that Microsoft lists it as deprecated, meaning it will be removed from a future version of SQL Server Nulltheless, here’s an example ... Management Studio.’’ Beginning statistics Statistics is a large and complex field of study, and while SQL Server does not pretend to replace a full statistical analysis software package, it does calculate

Ngày tải lên: 04/07/2014, 09:20

... Sebastian, SQL Server MVP, is a SQL Server Consultant specializing in XML based on Ahmedabad, India, and has been using SQL Server since version 6.5. Jacob compressed his vast knowledge of SQL Server ... Australian SQL Server community, and president of the Queensland SQL Server User Group. Peter is a highly regarded speaker at SQL Server events throughout Australia and is a sought-after SQL Server ... be contacted at allan@sqlha.com or via his website at www.sqlha.com. Brian Kelley is a SQL Server author, blogger, columnist, and Microsoft MVP focusing primarily on SQL Server security. He is...

Ngày tải lên: 04/07/2014, 09:20

... with SQL Server 142 SQL Server Management Objects 142 ADO.NET 147 Scripting SQL Server Tasks 150 Administrative tasks 150 Data-based tasks 159 SQL Server PowerShell Extensions 161 SQLPS.exe ... and Tools 17 SQL Server Management Studio 18 SQL Server Configuration Manager 18 SQL Profiler/Trace 19 Performance Monitor 19 Command-line utilities 19 Books Online 20 SQL Server Editions ... Installing SQL Server 2008 73 Selecting Server Hardware 73 CPU planning 73 Copious memory 74 Disk-drive subsystems 74 Network performance 76 Preparing the Server 78 Dedicated server 78 Operating...

Ngày tải lên: 04/07/2014, 09:20

... 1126 Planning SQL Server 2008 failover clustering 1127 SQL Server 2008 prerequisites 1130 Creating a single-node SQL Server 2008 failover cluster 1131 Adding a node to an existing SQL Server 2008 failover ... 1119 How SQL Server 2008 failover clustering works 1122 SQL Server 2008 failover clustering topologies 1123 Enhancements in SQL Server 2008 Failover Clustering 1124 SQL Server 2008 Failover Clustering ... 691 Accessing a Local SQL Server Database 693 Linking to External Data Sources 694 Linking to SQL Server with Management Studio 694 Linking to SQL Server with T -SQL 697 Linking with non SQL Server data...

Ngày tải lên: 04/07/2014, 09:20