net database

Using System;Using System. Configuration;Using System. Data;Using System. Data. SqlClient; Namespace DBHelper. utility{Public class SQLHelper{Public SQLHelper (){} Public static SqlConnection GetConn (){SqlConnection conn = new SqlConnection

'1. Connect to the database Dim dbname as string Dbname = server. mappath ("authors. mdb ") Myconnection = new oledbconnection ("provider = Microsoft. Jet. oledb.4.0; Data Source =" & dbname) Myconnection. open () La1.text = "connection opened! "  

First, let's take a look at what is MSMQ )? Message Queue is the basis for communication in Windows 2000 (NT also has MSMQ, WIN95/98/me/xp does not include Message Queue Service but supports running of clients, it is also a tool used to create

1. Briefly describe the access permissions of private, protected, public, and internal modifiers.A. Private: Private Members can be accessed within the class.Protected: protects members, which can be accessed within the class and in the inheritance

(Note: This article is helpful if you want to use the Oracle 9i Database in vs.net) Original Author nameOTN Original Article SourceOracle OTNIntroductionIntroduction to ODP. net BodyOracle data provider for. net release 9.2.0.2.102 installation and

We all know that ADO. Net comes with a link pool and is enabled by default. If not set, the maximum number of connections allowed is 100. So how can we see the number of active connections in the connection pool? After talking about the

When initializing the sqltransaction class, you need to use the begintranscation () method of the sqlconnection class:Sqltransaction mytran; mytran = myconn. begintransaction (); This method returns a variable of the sqltransaction type. After the

One mdb database is another file on the hard disk. Therefore, like other files, it will also encounter the same file access license problem. This problem means to read (and write, as you will see later in this book) database files, applications

Statement: ThisArticleFrom OTN (http://www.oracle.com/technology/global/cn/sample_code/tech/windows/odpnet/howto/arraybind/index.html)Target After reading this document, you should be able: Use ODP. Net to call database Stored Procedures

Previously, in ASP, we showed that large volumes of data were frequently read through record sets cyclically and inserted into tables. Code To display, the loop is . If it is a page, you still need to make it by yourself. If the sorting is more

ADO. NET is also an integral part of the. NET Framework. The function of ADO. NET is to process data access. With ADO. net, you can operate the database.What is ADO. Net? ADO. NET is an integral part of the. NET Framework. ADO. NET is composed of

. NET export to Office documents (word, excel) I understand the two methods. one is to store the exported file under a folder on the server, and use response to output the file to the address bar of the browser to open it directly. Also, you can use

ADO. NET Connect to SQL ServerThe SQL Server. NET Framework Data Provider supports connection string formats similar to OLE DB (ADO) connection string formats.Copy codeThe Code is as follows: using (SqlConnection connection = new SqlConnection

 Read data from the databaseIn ASP. NET, you can use datareader and dataset to read data from the database. The differences between the two methods are as follows: To use a dataset object to read data, perform the following five steps:(1) Create a

ASP. NET allows you to connect to a database flexibly. A simple method is to use data source controls that encapsulate data access to controls that can be configured using connection and query information. Alternatively, you can use the ADO. Net

1. Database connectionStore the connected database information in the following files to facilitate unified management.Web. config // do not understand this yet. I think it is very useful to study it well. NET should use. NET. ASPX worker has

1. the following file is named *. CS. Using system;Using system. Data;Using system. Data. sqlclient; Namespace ggshare{/// /// Summary of dbconn./// Public class dbconn{Public dbconn (){//// Todo: add the constructor logic here//}Public static

An MDB database is another file on your hard disk, so, like any other file, it will encounter the same file Access License issue. This question means to read (and write, as you will see later in this book) the database file in which the application

Keyword Description: The keywords Data Source or server or address or addr or network address identify a meaning, that is, the addresses or names of the instances of SQL Server to which you want to connect. localhost or "." Identifies the local

Asp.net| Programming | access | data | Database An MDB database is another file on your hard disk, so, like any other file, it will encounter the same file Access License issue. This question means to read (and write, as you will see later in this