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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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VB学生管理系统,通常使用的数据库操作功能.
VB学生管理系统,通常使用的数据库操作功能.-VB student management system, commonly used functions of database operations.
- 2022-03-05 23:05:30下载
- 积分:1
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PowerDesigner 简明入门教程,非常实用,用国的都说好!!真的
PowerDesigner 简明入门教程,非常实用,用国的都说好!!真的-Introduction lecture of PowerDesigner. It s very practical and useful.
- 2022-08-17 03:41:52下载
- 积分:1
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ADO 最全的资料 有详细的说明和代码。
ADO 最全的资料 有详细的说明和代码。-ADO most complete information on a detailed description and code.
- 2023-08-14 13:15:03下载
- 积分:1
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使用MS Jet做的一个解释运行SQL语句/文件的程序
使用MS Jet做的一个解释运行SQL语句/文件的程序-The app of interpreting SQL text or file based on MS JET
- 2022-05-31 05:57:47下载
- 积分:1
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wtl写的,代码小
wtl写的,代码小-Windows Template Library written in the code small
- 2023-02-20 21:55:03下载
- 积分:1
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JBUILDER连接数据库的一个事例,是使用了一个配置文件写的,初学者看比较好一些...
JBUILDER连接数据库的一个事例,是使用了一个配置文件写的,初学者看比较好一些-JBUILDER connecting to the database an example is the use of a configuration file written in the beginners do a bit better
- 2022-01-31 17:20:11下载
- 积分:1
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MFC C++ Acess 一个完善的ODBC数据库程序,可以动态加载Aceess数据库...
MFC C++ Acess 一个完善的ODBC数据库程序,可以动态加载Aceess数据库-MFC C++ Acess a perfect ODBC database program can be dynamically loaded database Aceess
- 2022-05-29 18:52:23下载
- 积分:1
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感应电机的运行
INDUCTION MOTOR RUN
(Currents and speed as state variables)
The motor is running at a specified load. After reaching steady state in an initialization first run, the initial conditions are established for a second run in which the load is pulsating. The dynamic equations are expressed in canonical first-order matrix form adopting currents and speed as state variables, and are solved using ODE45.
The user has the choice of selecting one of three common (dq) reference frames: STATOR, ROTOR or SYNCHRONOUS.
The torque, speed,and current responses are plotted. -INDUCTION MOTOR RUN
(Currents and speed as state variables)
The motor is running at a specified load. After reaching steady state in an initialization first run, the initial conditions are established for a second run in which the load is pulsating. The dynamic equations are expressed in canonical first-order matrix form adopting currents and speed
- 2022-07-13 20:22:44下载
- 积分:1
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将在SQL2000下建立schooldata数据库,导入数据文件。实现功能:操作:在选择查询条件:选择一个,tree控件里显示相关信息 可以在tree控件里单击...
将在SQL2000下建立schooldata数据库,导入数据文件。实现功能:操作:在选择查询条件:选择一个,tree控件里显示相关信息 可以在tree控件里单击来显示每个ITEM,每个ITEM相关信息显示在LIST控件内。双击LIST控件显示具体信息。也可以在窗口里单击右键或操作菜单具体操作。-will establish schooldata SQL2000 database, import data files. Achieving function : : On the choice of inquiries conditions : one tree to demonstrate control information related to the tree Lane click controls to show how ITEM, each ITEM related information display controls within the LIST. Double-click the Control LIST show specific information. Also in the window or right-click Lane menu of specific operations.
- 2022-09-17 00:15:02下载
- 积分:1