Hướng dẫn học Microsoft SQL Server 2008 part 18 ppt

... have a text file called servers.txt that contains a list of servers, one server name per line. The file might resemble something like this: SQLTBWS SQLTBXP SQLTBW7 SQLPROD1 SQLPROD2 By using the ... format-table -Autosize } $servers = get-content ‘servers.txt’ foreach ( $server in $servers) { $results = gwmi -query "select StatusCode from Win32_PingStatus where Address = ‘ $server "...

Ngày tải lên: 04/07/2014, 09:20

... 1 Understanding SQL Server requires understanding T -SQL. The native language of the SQL Server engine is Transact -SQL. Every command sent to SQL Server must be a valid T -SQL command. Batches of stored T -SQL ... 3 The World of SQL Server IN THIS CHAPTER Why choose SQL Server? Understanding the core of SQL Server: the Relational Database Engine Approaching SQL Se...

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... example, instead of relating an assembly process between any part, the assembly relationship must now relate with multiple types of parts. 49 www.getcoolebook.com Nielsen c03.tex V4 - 07/21/2009 ... play before life became so busy. (You can listen to some of my MP3s on my ‘‘about’’ page on www.sqlserverbible.com.) There are some musicians who can hear a song and then play it; I’m not one of...

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... modeling and querying recur- sive relationships within SQL Server 2008. 61 www.getcoolebook.com Nielsen c03.tex V4 - 07/21/2009 12:07pm Page 56 Part I Laying the Foundation modeled as one base camp ... open-source experiment to transform SQL Server into an object-oriented database. Nordic builds on the supertype/subtype pattern and uses T -SQL code generation to create a T -SQL...

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... V4 - 07/23/2009 1:58pm Page 91 Installing SQL Server 2008 4 Summary SQL Server 2008 is easy to install with proper planning, With the 2008 release, Microsoft has intro- duced additional tools ... stories about SQL Server 2008 upgrades. With SQL Server installed, the next chapter moves on to connecting clients to SQL Server. 91 www.getcoolebook.com Nielsen c04.tex...

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... 12:42pm Page 240 Part II Manipulating Data With Select Having said that, SQL Server supports backward compatibility, so if the database compatibility level is set to 80 (SQL Server 2000), then ... outer joins are deprecated in SQL Server 2008, so any ANSI 89 outer joins will generate an error. 234 www.getcoolebook.com Nielsen c10.tex V4 - 07/21/2009 12:42pm Page 236 Part II Ma...

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... query looks at the entire row (or, more specifically, all the columns that participate in the union’s SELECT statements). SQL Server uses the ANSI Standard keyword EXCEPT to execute a difference union: SELECT ... 10 Summary Merging 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...

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... sets Normally, SQL Server groups by every unique combination of values in every column listed in the GROUP BY clause. 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’...

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... quarter for 2008: SELECT DATEPART(qq, SalesDate) AS [Quarter], Count(*) as Count, Sum(Amount) as [Sum], Avg(Amount) as [Avg] FROM RawData WHERE Year(SalesDate) = 2009 GROUP BY ALL DATEPART(qq, SalesDate); Result: Quarter ... sections describe ways to create the same result. Pivot method Microsoft introduced the PIVOT method for coding crosstab queries with SQL Server 2005. The pivot m...

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... OVER() clause with a ROW_NUMBER() function and a partition. The partition will begin renumbering with every new partition. Set the OVER() clause to PARTITION BY every column to be checked for duplicate ... to be canceled. The SQL command submitted to SQL Server is discarded by the INSTEAD OF trigger; the code within the INSTEAD OF trigger is executed instead of the submitted SQL comma...

Ngày tải lên: 04/07/2014, 09:20