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Recently always see a netizen asked about ado.net and ADO about the difference and good or bad, think oneself in just contact. NET really have this doubt, now will my little understanding and experience to write, I hope to help you a bit! In fact, most of it comes from msdn!!. ADO for applications written in native code, ADO provides a COM based application-level

I. History of data access MethodsGeneric data access model: odbc– (Open Database Connectivity) is an underlying access technology that establishes a set of specifications and provides a set of standard APIs (application programming interfaces) for database access. OLE db– as more and more data is stored in a non-relational format, a new architecture is needed to provide a seamless connection between this application and the data source, and the OLE DB based on COM (Component Object Model) comes

I. Introduction to ADOADO (ActiveX Data Object) is a new interface for Microsoft database application development. It is a high-level database access technology built on top of ole db. Do not worry about this, even if you are, COM can also easily deal with ADO without understanding it, because it is very easy to use, and even easier to use than the ODBC APIs, DAO, and RDO you used in the past. This article describes in detail how to use

By default, ADO is the Apartment thread model. If you are using this in IIS and ADO is only being used at page scope then it should be fine. If you are using it at the session or application level then you will need to mark it as both. So how can we change it to Both? It may be to change the thread model in the registry. In C:/Program Files/Common Files/System/

I. Introduction to ADO If you don't know Ole db,com, ADO (ActiveX Data Object) is a new interface for the development of Microsoft database applications, a high-level database access technology built on OLE DB, and it's easy to deal with ADO, Because it's very easy to use, even more than the ODBC API, DAO, and RDO that you used to be in touch with, and flexibili

Asynchronous operations (ADO. Net) Some database operations (such as command execution) may take a long time to complete. In this case, a single-threaded application must block other operations and wait until the command is completed before continuing to execute their own operations. In comparison, if you can allocate long-running operations to a background thread, you can allow the foreground thread to remain active throughout the operation. For exam

Parameter buttons when using SSIS OLE DB data sources such as:But when using the ADO source to connect to MySQL, without this parameter button, how to pass parameters to the SQL command of the data stream?Steps1. On the Control Flow tab, on the Data Flow task that contains the ADO source, right-click Properties, set Expressions.2. The property expression Editor is set up as follows:Properties: Select

I went to the interview yesterday and encountered a problem about the difference between ADO. NET and ADO. I have never paid attention to the differences between the two. I can only say that ado.net is better than ADO in terms of performance. So here we will record the differences between the two for memo:1. Both data are stored in the memory, but ado.net is st

ADO. NET -- DataAdapter object, ado. netdataadapter DataAdapter object Source and function: In the ADO. NET object I introduced earlier, such as the Connection object, Command object, and DataReader object, all of these objects belong to the Data Provider and are connected-based. If we need to connect to the database every time we retrieve tables or rows in the d

ADO. NET Entity Framework I have been paying attention to this architecture for a while, but I have not seen the official release of the architecture because of my busy schedule, and I have not taken the time to learn more about it, Vs2008 SP1 After the release, ADO. NET Entity Framework And Net3.5sp1 Integrated, I think possible ADO. NET Entity Framework

Ado| Comparison guide: In ADO Our most commonly used objects on the recordset, and in the Ado.net added an object dataset. This article briefly compares the similarities and differences of Dateset and Recordset, which is very helpful to ado.net beginners. -------------------------------------------------------------------------------- Translation finishing:. NET technology Network (www.51dotnet.com) Gao Fei

ADO. NET acquires data (DataSet) and the schema instance of the table, ado. netdataset The general method for obtaining DataSet through ADO. NET is as follows: using System.Configuration;using System.Data;using System.Data.SqlClient;public class SQLHelper{ private static readonly string ConnectionString = ConfigurationManager.ConnectionStrings["Default"].Connecti

Explanation of Connection in ADO. NET, ado. netconnectionConnection string 1.Method 1 "Data Source = server name; Initial Catalog = database; User ID = username; Password = Password; Charset = UTF8 ;" 2.Statement 2 "Server = Server name; Database = Database; uid = user name; Password = Password; Charser = UTF8" PS: Integrated Security = True;What if I forget to write the connection string? (Although quite s

The core component of ADO. NET is composed of the data provider module and the dataset module. Data ProviderProgramDatabase to achieve data connection, operations, and fast read-only access to data. Dataset allows data access and Operations independent from data sources. It is similar to the closed static data set of ADO. The structure of ADO. NET is as follows

ado| Objects | tutorials Site original content, reproduced please indicate the source Web page teaching network . The ADO Connection object is used to create a connection that opens a data source through which we can access or manipulate the database. The properties and methods of the specific connection objects will be introduced in other articles. ADO recordset

ADO. NET review-write your own SqlHelper class, ado. netsqlhelper Today, I reviewed the basics of ADO. NET and sorted out the points I think: Compile the SqlHelper class to facilitate the execution of database statements. In this case, you can directly call the method encapsulated in the SqlHelper class. At present, most companies require you to write a SqlHelper

In which scenarios does ADO. NET Entity Framework work ?, Ado. netentity After zhihu answered the question, he turned back. Enity Framework is already the main ORM in. NET. From the beginning of a Mapping concept, ORM has been sublimated to a certain extent, especially EF and other improvements to the object-oriented capabilities of the ORM framework. To put it bluntly, the orm enables the database to be b