database programming using c 2008 visual basic 2008 and sql server pdf

.NET Enterprise Design with Visual Basic .NET and SQL Server 2000 docx

... 6 HUYLFHVI O RZEHWZHHQPDFKLQHVEXWRQO\ZKHQ'&20LVXVHG7KDWPHDQVIRUH[DPSOH WKDW\RXPXVWXVH'&20LQVWHDGRI1(75HPRWLQJLI\RXZDQWWRXVHD&20WUDQVDFWLRQ WKDWVSDQVWZRPDFKLQHV N ... XVHULVFRQFHUQHG:KHQLWFRPHVWRWKHGDWDEDVHLWVDQHQWLUHO\GLIIHUHQW VWRU\7KHGDWDEDVHLVLQKHUHQWO\VWDWHIXOVRWKHXVHUPXVWKLWWKHFRUUHFW GDWDEDVHVHUYHUHDFKWLPHWRILQGWKHVWDWHKHRUVKHQHHGV,IDOOGDWDEDVH VHUYHUVORRNDOLNHVRWKDWHDFKRIWKHPKDVWKHVDPHVWDWHWKHUHZLOOEHDQRWKHU SUREOHPQDPHO\ZLWKWKH 83'$7( VWKDWPXVWEHSURSDJDWHG ,QVWHDGWKHGDWDEDVHFDQEHSDUWLWLRQHGRYHUVHYHUDOVHUYHUVVRWKDWWKHSDUWRI WKHGDWDEDVHWKDWWDNHVFDUHRIRUGHUVFDQRFFXS\RQHVHUYHUWKHVKLSPHQWVFDQ RFFXS\DQRWKHUVHUYHUDQGVRRQ7KHQ\RXKDYHDPDMRUGHVLJQLQIOXHQFH$ PRUHUHFHQWSRVVLELOLW\IRXQGLQ64/6HUYHULV'LVWULEXWHG3DUWLWLRQHG9LHZV '39VWKDWOHW\RXVSOLWDWDEOHVXFKDV RUGHUPDVWHU RYHUVHYHUDOPDFKLQHV7KH SDUWLWLRQLQJLVWUDQVSDUHQWWRWKHOD\HUFORVHVWWRWKHGDWDEDVH,WFDQDOVREHEXLOW E\KDQGEXWWKHQWKHOD\HUFORVHVWWRWKHGDWDEDVHPXVWNQRZKRZWKH SDUWLWLRQLQJKDVEHHQFRPSOHWHG(LWKHUZD\LWVH[WUHPHO\LPSRUWDQWWRILQGD GLVWULEXWLRQNH\WKDWVSOLWVWKHGDWDRUUDWKHUWKHORDGHYHQO\<RXFDQVHHWKDW WKH FXVWRPHU WDEOHKDVEHHQVSOLWRYHUWKUHHGDWDEDVHVHUYHUV²(DVW&HQWUDODQG :HVW²LQ)LJXUH )LJXUH3DUWLWLRQLQJH[DPSOH,QWKLVH[DPSOHWKHGDWDEDVHVHUYHUKDVEHHQ SDUWLWLRQHG 5HSOLFDWLRQ ,QVHYHUDOSDUWLWLRQLQJVFHQDULRVWKHUHZLOOEHDQHHGIRUGXSOLFDWLRQRIORRNXS WDEOHVDQGGXSOLFDWLRQRIWKHURZVLQWKRVHWDEOHVEHFDXVHWKHUHZLOOEH UHIHUHQWLDOLQWHJULW\UHODWLRQVKLSVWKDWQHHGWREHFKHFNHG:KHQWKRVHORRNXS WDEOHVDUHWREHXSGDWHGDWZRSKDVHFRPPLWWUDQVDFWLRQLVQHHGHGLI³UHDOWLPH FRQVLVWHQF\´LVDUHTXLUHPHQW5HSOLFDWLRQFDQJLYHD³UHDOHQRXJKWLPH FRQVLVWHQF\´VROXWLRQWRWKHSUREOHP 2QHSUREOHPZLWK'39VLVWKDWDOOTXHULHVFDQWDOZD\VEHDQVZHUHGE\RQH PDFKLQH,QVWHDGVHYHUDOPDFKLQHVKDYHWRFRRSHUDWHWRSURGXFHWKHUHVXOW ZKLFKGHFUHDVHVSHUIRUPDQFH$PRUHKLJKSHUIRUPDQFHVROXWLRQZRXOGEHWR FORQHWKHGDWDEDVHVLQVWHDGVRWKDWDOOGDWDZLOOEHIRXQGDWHYHU\VHUYHU7KH UHDGLQJZLOOEHYHU\IDVWDQGWKHVROXWLRQZLOOEHYHU\VFDODEOH²WKDWLVXQWLO\RX WDNH 83'$7( VLQFRQVLGHUDWLRQ,I\RXQHHGUHDOWLPHFRQVLVWHQF\EHWZHHQWKH GDWDEDVHV\RXQHHGWRXVHWZRSKDVHFRPPLWWUDQVDFWLRQVGLVWULEXWHG WUDQVDFWLRQVZKLFKDUHQRWRQO\YHU\FRVWO\EXWDOVRYXOQHUDEOH,IRQHVHUYHULV GRZQDWWKHWLPHRIWKHWUDQVDFWLRQWKHWUDQVDFWLRQFDQWEHIXOILOOHG)LJXUH VKRZVDVFKHPDWLFGHVFULSWLRQRIUHSOLFDWLRQ<RXFDQVHHWKDWWKHZRUNVWDWLRQLV RQO\WDONLQJWRRQHRIWKHGDWDEDVHVHUYHUVEXWWKHFKDQJHVZLOOEHUHSOLFDWHGWR WKHVHFRQGGDWDEDVHVHUYHU )LJXUH5HSOLFDWLRQ ... RIWKLVVHFWLRQ 3URFHVV5HF\FOLQJ $VLPSOHZD\RIHVFDSLQJWKHSUREOHPVZLWKPHPRU\OHDNDJHLVWRUHVWDUWWKHVHUYHUSURFHVVQRZ DQGWKHQ:LWKSURFHVVUHF\FOLQJ\RXFDQGHFODUDWLYHO\WHOOKRZDQGZKHQWKLVVKRXOGKDSSHQ²IRU H[DPSOHDIWHUDFHUWDLQDPRXQWRIUHTXHVWVRUHYHU\QLJKW 1RWH ,RQFHZURWHD:HEDSSOLFDWLRQWKDWKDGDPHPRU\OHDN7KHFXVWRPHUWKRXJKWLWZDVD FKHDSVROXWLRQIRUWKHPWRMXVWUHERRWWKHPDFKLQHHYHU\ZHHNHQGEHFDXVHWKH\KDG SHRSOHZRUNLQJWKHQDQ\ZD\,SUHIHUUHGWRWU\WRVROYHWKHSUREOHPLQVWHDGRIXVLQJD %DQG$LGEXWWKH\GLGQWVHHWKLVDVDSUREOHPDWDOO2IFRXUVHSURFHVVUHF\FOLQJZRXOG KDYHEHHQPRUHFRQYHQLHQWIRUWKHP &RQILJXUDEOH,VRODWLRQ/HYHO ,Q&20WKHWUDQVDFWLRQLVRODWLRQOHYHOZDVDOZD\V6(5,$/,=$%/(...

Ngày tải lên: 22/03/2014, 14:20

210 1,1K 0

Tài liệu Using an IP Address to Connect to SQL Server pdf

... 1-5. File: ConnectSqlServerIpAddressForm.cs // Namespaces, variables, and constants using System; using System.Data.SqlClient; // . . . private void connectButton_Click(object sender, ... native protocol of Novell Netware networks. TCP/IP Sockets [ Team LiB ] Recipe 1.6 Using an IP Address to Connect to SQL Server Problem You want to connect to a SQL Server using its IP ... + conn.State; } Discussion SQL Server network libraries are dynamic-link libraries (DLLs) that perform network operations required for client computers and SQL Server computers to communicate....

Ngày tải lên: 21/01/2014, 11:20

3 401 0

Programming Visual Basic 2008 doc

... object-oriented programming (OOP) tech- niques, ActiveX control development, and web-based logic coding. Microsoft had even integrated the core Visual Basic engine—christened Visual Basic for Applications, ... slight inaccura- cies during calculations. Table 2-1. Core .NET and Visual Basic data types (continued) VB name .NET name Description www.it-ebooks.info 62 | Chapter 2: Introducing Visual Basic In ... computer coding in a broad sense. This includes all Visual Basic source code, HTML content, XML content, commands, options, source code from other languages, and content generated by Visual Studio...

Ngày tải lên: 29/03/2014, 07:20

782 1,6K 1

Programming Visual Basic 2008 phần 1 ppsx

... bought a 24 | Chapter 1: Introducing .NET To use the sample Chapter 1 project, select the Programming Visual Basic 2008 entry within the Visual Basic project type, and then select Chapter 1 Sample ... application. Visual Basic also includes structures, the weaker yet quicker younger brother of classes. Struc- tures implement value types, and also include both data and code. Classes and structures ... computer coding in a broad sense. This includes all Visual Basic source code, HTML content, XML content, commands, options, source code from other languages, and content generated by Visual Studio...