adventureworks2008

Oracle through the linked server is introduced. This article introduces the solution to the performance problem of remote deletion of SQL Server data under the linked server.1. Problem Discovery The system has a function. You need to remotely Delete the table data of the SQLServer instance. The delete statement has the where condition and the condition contains a subquery. The frontend execution speed of this function is very slow. So prepare for optimization. The Demo code is as follows: DELE

. These values can be directly obtained from data sources such as sales or product costs, or calculated, such as multiplying a certain number by a certain amount to get expanded sales. In addition, you need to determine which attributes should be included in each dimension. An attribute is a single element in a dimension (corresponding to a column in a table), such as the year in the country/region or date dimension of the sales region dimension. You can use attributes to group or filter data ba

There are a few friends to suggest a combination of examples to illustrate, the previous article has said several types of locks, you can use the system dynamic view sys.dm_tran_locks see, the important fields are as follows: Resource_type the type of resource being locked (Database, FILE, Object,page,key,extent,rid,application,metadata,hobt,appocation_unit) Type of Request_mode lock (shared lock, update lock, exclusive lock, schema lock, etc.) Resource_description Resource Description Reque

Original: SQL Server remotely deletes data performance problem resolution via linked serversIn the previous article, the workaround for SQL Server access to Oracle performance issues through linked servers is described in this article, which addresses the performance issues of remotely deleting SQL Server data under linked servers1. Problem findingThere is a feature in the system that requires remote deletion of the SQL Server Instance's table data, and a where condition in the DELETE statement,

a AdventureWorks2008 database??Use Master GOALTER DATABASE AdventureWorks2008 ADD FILEGROUP MyFilestreamGroup2 CONTAINS FILESTREAMGOALTER DATABASE AdventureWorks2008 ADD FILE (NAME = N ' Filestreamdata ')RFILENAME = N, D:\SQLData\FileStreamData,) to FILEGROUP MyfilestreamgroupGOAfter you have added a new filegroup to the database, you can add or modify tables to

1. Insert basic syntax: Insert [into] [( Values ( 2. Insert multiple rows (new feature of SQL 2008) Insert into sales (Storecode, ordernumber, orderdate) Values ('Tst1', 'storder1', '2014/1/123 '), ('Tst1', 'storder2', '2014/1/123 '); 3. insert into ( Note: Use adventureworks2008 Declare @ mytable table ( Salesorderid int, Customerid char (5) ); Insert into @ mytable Select salesorderid, customerid From

Solved the problem of "filestream function disabled" When sqlserver restored data. Due to test requirements, I downloaded the Bak file of the adventureworks2008 instance database on the Internet. During restoration, the following error occurs: "filestream function disabled", as shown in: When the above problem occurs, we usually use the sqlserver Configuration Manager to set the sqlserver instance service and restart the sqlserver instance service, a

This article demonstrates how to build the most basic transactional replication.Environment Preparation: 2 virtual machines:The server names are Repa and Repb,repa are publishers, and REPB are subscribers. Are installed WindowsServer 2008r2 English version (the reason for working in a foreign company). and ensure that the two servers can exchange visits.SQL Server:In the above virtual machine, install SQL Server R2 x64 English Enterprise Edition separately.Demo Database:Microsoft Sample Database

server login with the appropriate permissions. In previous versions of SQL Server, you could choose to install the ADVENTUREWORKS2008 sample database that was briefly described in chapter 1th, but this functionality has been removed fromRemoved in the new version. AdventureWorks2008 sample database can be downloaded from Microsoft SQL Server Community Projects and Samples located on Www.codeplex.com/sqlser

Label:This article demonstrates how to build the most basic transactional replication.Environment Preparation: 2 virtual machines:The server names are Repa and Repb,repa are publishers, and REPB are subscribers. Are installed WindowsServer 2008r2 English version (the reason for working in a foreign company). and ensure that the two servers can exchange visits.SQL Server:In the above virtual machine, install SQL Server R2 x64 English Enterprise Edition separately.Demo Database:Microsoft Sample Da

Test the index definition in the table based ON SQLServer2008AdventureWorks2008, TablePerson. Person.: CREATENONCLUSTEREDINDEX [IX_Person_LastName_FirstName_MiddleName] ON. Test the index definition in the table based ON SQLServer2008AdventureWorks2008, TablePerson. Person.: CREATENONCLUSTEREDINDEX [IX_Person_LastName_FirstName_MiddleName] ON. Test the index definition in the table based on SQL Server 2008 AdventureWorks2008, TablePerson. Perso

))DECLARE dbcursorCursor forward_only for select SPID from master.dbo.sysprocesses where db_name (dbid) = Right (@param2, (Len (@param2)-3))Open DbcursorFetch dbcursor into @spidWhile @ @FETCH_STATUS =0BeginSet @spid2 = (select spid from master.dbo.sysprocesses where spid= @spid and spid>50)If @spid = @spid2 beginprint ' Killing ' +convert (varchar), @spid2)Set @killcmd = ' Kill ' +convert (varchar), @spid2)EXEC (@killcmd)EndElseBeginPrint ' cannot kill the SPID ' +convert (varchar, @spid2) + '

Label:Method 1. Working with system tables--Querying indexes and index columns in a table use AdventureWorks2008 GO SELECT indexname = a.name, TableName = c. Name, Indexcolumns = d. Name, A. indid from sysindexes a joins Sysindexkeys B on a. id = B. ID and A. indid = B.indid JOIN s Ysobjects C on B. ID = c. ID JOIN syscolumns d on b. ID = d. ID and b. colid = d. colid WHERE A. Indid N OT in (0, 255) --and c.xtype= ' U ' a

This article extends the transaction isolation level with examples in blockingPerformed in the order of Session 1-> session 2, Session 1 (SPID=53) Open transaction Update data not yet committed--Session 1 Open Transaction Update data not yet committed UseAdventureWorks2008;GOBEGIN TRANSACTION; --Modified 1 --leave time minus 8 UPDATEHumanResources.EmployeeSETVacationHours=VacationHours- 8 WHEREBusinessEntityID= 4;View CodeSession 2 (SPID=54) reads the modified row in session 1-- Ses

\ nmanagername {2} {3} " , RD [ 2 ], RD [ 3 ], RD [ 5 ], RD [ 6 ]);}Rd. Close (); } The first step is to use the configuration file. The configurationmanager. connectionstrings attribute can be used by the following nodes in the config file: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Connectionstrings > Add Name = "Adwentities" Connectionstring = "Data Source = localhost; initial catalog =

section of the index entry to navigate to the corresponding row in the table. This is required whenever SQL Server needs any information in the data row, rather than the corresponding index entry, such as the size of the softball cap for Tracy Meyer. So, for a better analogy, a white page entry contains a set of GPS coordinates instead of a phone number. Then use GPS coordinates to navigate to the domicile represented by the white page entry. Create and benefit from nonclustered indexes We en

@Command varchar (4000), @PhotoID INT, @ImageFileName varchar (declarecurphotoimagecursor) for--cursorforeachimageintableselectproductphotoid, largephotofilenamefromproduction.productphotowhere LargePhotoFileName!= ' No_image_available_large.gif ' opencurphotoimagefetch nextfromcurphotoimageinto @PhotoID, @ImageFileNameWHILE (@ @FETCH_STATUS =0) --cursorloopbegin --keepthebcpcommandononeline-singleline!!! -brokenupforpresentationSET @Command = ' bcp ' select largephotofromadventureworks2008.

Tags: des style blog http color os using IO strongOctober 13, 2010 12:46 Source: Ministry of Matsumasa's blog Department Matsumasa Editor: Huminya　　A: Below with AdventureWorks2008 for the sample database to do a brief description , filter out the general database of shared locks, as an example must see the lock, so with (HOLDLOCK) to maintain the lock.1. Shared locks (S) share lock UseAdventureWorks2008BEGIN TRANSelect * fromSales.SalesOrderHeader w

Database connection1. Add a connection within the file App. Config1 XML version= "1.0" encoding= "Utf-8"?>2 Configuration>3 connectionStrings>4 Database Authentication -5 Addname= "Database1connectionstring"6 connectionString= "Data source=dbservername1;initial catalog=adventureworks2008; User Id=sa; Password=abc123 "7 ProviderName= "System.Data.SqlClient" />8 Windows Integrated Authentication -9 Addname= "Database2connectionstring"T

documents:http://msdn.microsoft.com/zh-cn/library/aa178403 (v=sql.80). aspx Http://www.dbsophic.com/SQL-Server-Articles/physical-join-operators-merge-operator.htmlIn a SQL Server database, the query optimizer typically uses three connections when it handles table joins: Nested loops Join ( Nested Loop Join) Merge Connections ( Merge Join) Hash connection (hash join) Fully understand the three kinds of table connection working principle, we can optimize the SQL