can we update primary key value in sql server

Tài liệu Updating a Primary Key Value pdf

Tài liệu Updating a Primary Key Value pdf

... based on the original primary key and update the primary key value with the current value of the primary key in addition to updating the other row values with their current values. In the sample, ... different values of the DataRowVersion [ Team LiB ] Recipe 4.8 Updating a Primary Key Value Problem You changed a primary key value in a DataTable and updated the change back to the underlying ... but the value in the data source remained unchanged. You need to update a primary key value in the data source underlying the DataTable. Solution Use the SourceVersion property of SqlParameter...

Ngày tải lên: 26/01/2014, 10:20

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Tài liệu Getting an Identity Column Value from SQL Server pptx

Tài liệu Getting an Identity Column Value from SQL Server pptx

... the fourth argument in the constructor. The stored procedure also returns a result set containing a single row with a single value CategoryId—containing the new identity value generated by the ... if(firstReturnedRecordCheckBox.Checked) da.InsertCommand.UpdatedRowSource = [ Team LiB ] Recipe 4.2 Getting an Identity Column Value from SQL Server Problem When you add a row into a SQL Server table that has ... function was introduced in SQL Server 2000 to make it easier to work with identity values. While SCOPE_IDENTITY( ) and @@IDENTITY both return the last identity value generated in any column in the...

Ngày tải lên: 21/01/2014, 11:20

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Tài liệu Using a Single Stored Procedure to Update Multiple Changes to a SQL Server Database pdf

Tài liệu Using a Single Stored Procedure to Update Multiple Changes to a SQL Server Database pdf

... using System.Text; using System.IO; [ Team LiB ] Recipe 8.11 Using a Single Stored Procedure to Update Multiple Changes to a SQL Server Database Problem You need to update a SQL Server ... The sample code contains two event handlers: Form.Load Sets up the sample by creating a DataSet containing the contents of the table using System.Data; using System.Data.SqlClient; private ... stored procedure. SqlConnection conn = new SqlConnection( ConfigurationSettings.AppSettings[" ;Sql_ ConnectString"]); SqlCommand cmd = new SqlCommand( ); cmd.Connection = conn; ...

Ngày tải lên: 21/01/2014, 11:20

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Báo cáo y học: "Translational Medicine and Reliability of Single-Nucleotide Polymorphism Studies: Can We Believe in SNP Reports or Not"

Báo cáo y học: "Translational Medicine and Reliability of Single-Nucleotide Polymorphism Studies: Can We Believe in SNP Reports or Not"

... studies analysing a determined polymorphisms be- tween the studies examining it within 1-3 polymor- phisms versus studies examining the same polymor- phism among more than 3 polymorphism. Since the ... treat- ment. Int J Cancer 2003;103:810-814 92. Dickersin K., Min YI., and Meinert CL. Factors influencing publica- tion of research results. J. Am. Med. Assoc., 1992;267: 374–378 93. Callaham M, Wears ... Pharmacogenetic prediction of clinical outcome in advanced colorectal cancer patients receiving oxali- platin/5-fluorouracil as first-line chemotherapy. Br J Cancer. 2008;99:1050-5 85. Ashton...

Ngày tải lên: 25/10/2012, 10:51

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5 điều cần biết khi sử dụng máy in

5 điều cần biết khi sử dụng máy in

... gây lỗi khi in và gián tiếp làm hư các cơ cấu trong máy. Tốt nhất là không nên in quá 200-300 pixel mỗi inch của bức ảnh. Lưu ý: Sau khi in xong, tốt nhất là bạn đừng nên chạm vào bản in vì mực ... được. Để bảo vệ đầu phun mỗi khi in xong, bạn nên khởi động nó một cách thường xuyên. Bạn vào Start / Control Panel, mở Printers and Faxes, click chuột phải vào máy in của bạn, chọn Properties. ... Cleaning và Print Head Alignment trong Tab Utilities. Máy của bạn sẽ luôn luôn được sạch sẽ. Bạn nên thực hiện thủ thuật này đối với các máy đã lâu ngày không sử dụng hoặc thực hiện trước khi in...

Ngày tải lên: 08/10/2012, 15:10

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SQL Server 2000 Administration in 15 Minutes a Week: Administration Fundamentals

SQL Server 2000 Administration in 15 Minutes a Week: Administration Fundamentals

... can access a SQL Server instance Learn SQL Server 2000 in 15 Minutes a Week: Basic Installation Part 2 by Michael Aubert www.2000trainers.com Welcome to the second article in my series SQL Server ... Computer – Installs SQL Server onto a remote computer on the network Virtual Server – Used for installing SQL Server onto a Server Cluster In this article we will look at an installation of SQL Server ... directly to SQL Server 2000 - SQL Server 2000 can be installed as the default instance along side SQL Server 6.5 but only a single version can be active at a time. You can use “version switching” to...

Ngày tải lên: 17/10/2013, 09:15

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Specifying Locking Hints in a SQL Server Database

Specifying Locking Hints in a SQL Server Database

... Recipe 6.14 Specifying Locking Hints in a SQL Server Database Problem You need to pessimistically lock rows in an underlying SQL Server database. Solution Use SQL Server locking hints from ADO.NET. ... SELECT, INSERT, DELETE, and UPDATE statements to instruct SQL Server as to the type of lock to use. You can use locking hints when you need control over locks acquired on objects. The SQL Server ... structures used internally by the lock manager. • The SQL Server Profiler can be used to monitor and record locking information. • The Windows Performance Monitor has a SQL Server Locks Object...

Ngày tải lên: 17/10/2013, 20:15

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