linq or ado net

, OdbcDataAdapter, or OracleDataAdapter object), which calls the OLE DB The API provided by the provider or the underlying data source. The main difference between ADO and ado.net is that in Ado.net, the data adapter allows you to control how changes made to the dataset are transferred to the database by performing performance optimizations, executing data validation checks, or adding any additional processing. Note Data adapters, data connections, da

Overview ADO and ADO. NET are two data access methods. ADO. NET uses the offline method. when accessing data, ADO. NET uses XML to make a copy of the data. The database connection of

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 rem

DataSet object and the data source. DataAdapter uses the Command object to execute SQL commands in the data source to load data to DataSet and make changes to the data in DataSet consistent with the data source. 4. ADO. NET Extension Providing consistent data access is a key advantage of using ADO. NET. However, for d

ADO. NET Entity Framework is Microsoft with ADO. the object relationship correspondence (O/R Mapping) solution developed Based on. NET, known as objectspace, is now included in Visual Studio 2008 Service Pack 1 and.. NET Framework 3.5 Service Pack 1. Directory

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

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-b

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 dat

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 rea

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 w

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

Framework, nhib.pdf, subsonic, or ADO. Net class to build your data handler class. In this tutorial, I use LINQ to SQL to query and update databases. LINQ to SQL provides you with a very simple way to interact with the Microsoft SQL Server database. However, it is very important to understand the ASP.

Transferred from MicrosoftCommunity Host and expert introduction HOST: guest_fanfan Microsoft expert: Zheng Ziying (guest_eric [MS]), Huang xuebin (guest_steven _ms) Host guest_fanfan says: Welcome to the Microsoft online technology chat. Host guest_fanfan says: Today's chat topic is ADO. net and data management in. net frameworkhost guest_fanfan says: the c

Some time ago there were many Article This article introduces and analyzes LINQ to SQL. It can be said that it is a simple implementation of ORM, which is a problem that Microsoft has unbalanced impedance between data and objects. C #3.0 introduces some new features, such as extension method, Lambda expression, and anonymous type. In fact, these new features are used to serve LINQ. Program In the past, I

DataSet, DataReader, and ADO. netdatareader In ado. NET ADO. NET provides two objects for retrieving relational data and storing it in the memory: DataSet and DataReader. DataSet provides a full set of relational data in the memory, including the relationships between tables

Records the issue where Session information is not updated when the ADO. NET connection pool is used to connect to Oracle, ado. netoracle In a recent project, due to the large amount of data queried on the interface and the large number of associated tables, some data needs to be saved temporarily for later queries, so I thought of using temporary oracle tables t