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微软的SQL SERVER数据库的Image、text等字段都属于二进制的大对象。这些对象的存取和其他轻型对象略有不同。
微软.NET Framewor...
微软的SQL SERVER数据库的Image、text等字段都属于二进制的大对象。这些对象的存取和其他轻型对象略有不同。
微软.NET Framework的System.IO命名空间下给我们提供了一个FileStream文件流类。我们可以使用这个文件流对二进制大对象轻松进行读写。
我实现了一个简单的WinForm程序,这个程序通过点击“Open”按钮选择一个bmp或者jpg文件,并显示在图形控件PictureBox中。通过“Save”按钮存入数据库。点击“View”CheckBox可以切换到浏览状态,观看存入数据库的图片。
由于对二进制大对象使用的流操作,所以对于任何文件都具有通用性。读写文本文件也可以这么做。
-Microsoft s field and so on SQL SERVER database Image, text all
belongs to binary the big object. These objects deposits and
withdrawals and other light objects have the difference slightly.
MicrosoftNET Framework System.Under the IO naming space provided a FileStream document to us to flow
the kind. We may use this document to flow to the binary big object
with ease carry on read-write. I have realized a simple WinForm
procedure, this procedure through clicks on "Open" the button to
choose bmp or the jpg document, and the demonstration controls in
PictureBox in the graph. The button stores the database through
"Save". Clicks on "View" CheckBox to b
- 2022-07-19 07:21:16下载
- 积分:1
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VC++ database programming, for document management. Simple modifications can be...
VC++数据库编程,用于文件管理.简单修改后可用于小型数据库系统-VC++ database programming, for document management. Simple modifications can be used for small database systems
- 2022-07-08 01:15:24下载
- 积分:1
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在现有的数据库结构下,生成代码数据库结构
根据现有的数据库结构,生成数据库构造程序代码-under existing database structures, generate code database structure
- 2022-03-18 01:40:13下载
- 积分:1
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(转载)This application allows you to open Access databases, view their tables and
(转载)This application allows you to open Access databases, view their tables and fields and run queries in its own SQL window. It is a good demonstration of ADO and ADOX for beginners. The application works with both Access 97 and Access 2000 databases. 这个应用程序允许你打开Access数据库,预览它们的表和字段,并在它自己的SQL窗口中执行查询。对于初学者来说它是一个非常好的ADO和ADOX演示程序。这个应用程序能和Access 97以及Access 2000数据库一块运行。 来源: http://www.freevbcode.com/ShowCode.Asp?ID=2163- (Reprint) This application allows you to open Access databases,
view their tables and fields and run queries in its own SQL window. It
is a good demonstration of ADO and ADOX for beginners. The application
works with both Access 97 and Access 2,000 databases. this application
procedure allows you to open the Access database, looks at their table
and the field in advance, and carries out the inquiry in it SQL
window. As for the beginner it is extremely good ADO and the ADOX
demonstration program. This application procedure can 97 as well as
the Access 2,000 databases
- 2022-01-26 03:32:02下载
- 积分:1
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一个小小的实例,是能够存取图片的,其中图片的数据还不是很大...
一个小小的实例,是能够存取图片的,其中图片的数据还不是很大-a small example is the ability to access photos, pictures of data is not great
- 2023-04-16 19:25:03下载
- 积分:1
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PD is used to develop a database system, please refer to, PD study will help.
这是用PD开发的一个数据库系统,请大家参考一下,对于PD的学习有一定的帮助.-PD is used to develop a database system, please refer to, PD study will help.
- 2023-01-06 04:15:03下载
- 积分:1
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database manually connect, not to connect automatically, make changes in procedu...
数据库的手动连接,不用自动连接,会使程序修改时很方便.-database manually connect, not to connect automatically, make changes in procedures at the very convenient.
- 2022-08-15 06:48:44下载
- 积分:1
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单独好用的万能查询模块
单独好用的万能查询模块-separate the useful omnipotent Query Module
- 2022-02-21 10:26:13下载
- 积分:1
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一个使用MFC和SQL的例子(
一个使用MFC和SQL的例子(-use an MFC and SQL example (
- 2023-05-30 01:20:03下载
- 积分:1
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用VC开发学校后勤管理信息系统,供初学者学习...(有数据库)
用VC开发学校后勤管理信息系统,供初学者学习...(有数据库)-VC schools with the development of logistics management information systems, for beginners to learn ... (with database)
- 2023-05-18 03:50:04下载
- 积分:1