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What is SqlConnection and SqlCommand?

What is SqlConnection and SqlCommand?

SqlConnection and SqlCommand are classes of a connected architecture and found in the System. Data. SqlClient namespace. The SqlConnection class makes a connection with the database. Further, this connection (database connection) is used by the SqlCommand to work with that database.

When should you use the SqlConnection object?

If you want to access a database multiple times, you should establish a connection using the Connection object. You can also make a connection to a database by passing a connection string via a Command or Recordset object. However, this type of connection is only good for one specific, single query.

Where is Microsoft SQL Server management SMO?

For SQL Server 2016, this location is C:\Program Files (x86)\Microsoft SQL Server\130\SDK\Assemblies (for the 64bit version). The SQL Server Management Objects (SMO) are downloadable as part of the relevant SQL Server (20XX) Feature Pack (check the smallprint as I don’t believe these are redistributable?)

How do I use SqlConnection?

Using a SqlConnection

  1. Instantiate the SqlConnection.
  2. Open the connection.
  3. Pass the connection to other ADO.NET objects.
  4. Perform database operations with the other ADO.NET objects.
  5. Close the connection.

What is SqlCommand class in C#?

A SqlCommand object allows you to query and send commands to a database. It has methods that are specialized for different commands. The ExecuteReader method returns a SqlDataReader object for viewing the results of a select query. For insert, update, and delete SQL commands, you use the ExecuteNonQuery method.

What is the difference between SqlCommand and SqlDataAdapter?

SqlAdapter is used to fill a dataset. SqlCommand can be used for any purpose you have in mind related to Create/Read/Update/Delete operations, stored procedure execution and much more.

What is the valid code for creating a SqlConnection object?

Discussion Forum

Que. Valid Code for Creating a SqlConnection Object would be ____________
b. SqlConnect conn = NEW SqlConnection( “Data Source=(local);Initial Catalog=Northwind;Integrated Security=SSPI”);
c. SqlConnection conn = NEW SqlConnect( “Data Source=(local);Initial Catalog=Northwind;Integrated Security=SSPI”);

What is Microsoft Sqlserver management SMO?

SQL Server Management Objects (SMO) is a collection of objects that are designed for programming all aspects of managing Microsoft SQL Server. SQL Server Replication Management Objects (RMO) is a collection of objects that encapsulates SQL Server replication management.

What is the use of SqlConnection class?

A SqlConnection object represents a unique session to a SQL Server data source. With a client/server database system, it is equivalent to a network connection to the server. SqlConnection is used together with SqlDataAdapter and SqlCommand to increase performance when connecting to a Microsoft SQL Server database.

Why do we need SqlCommand in C#?

What are the serverconnection properties and exceptions?

If explicitly set, All properties in the ServerConnection object will be populated to reflect the passed in connection string. Exceptions: ConnectionCannotBeChangedException InvalidPropertyValueException The length of time (in seconds) to wait for a connection to the server before terminating the attempt and throwing an exception.

What is the purpose of the extra Boolean in serverconnection constructor?

Microsoft makes no warranties, express or implied, with respect to the information provided here. Creates a ServerConnection object taking in the token. The extra boolean is used to overload this constructor as another constructor with string is present. Constructs a new ServerConnection object from the given SqlConnection

What is the default setting of the serverconnection?

Default is “GO”. The batch separator is case-insensitive. Gets or sets a value indicating whether ServerConnection instances should cache query results If set to true, the connection will be made with the credentials of the specified user.

What is construct in SQL server connection?

Constructs a new ServerConnection object from the given SqlConnection The application intent of the connection Valid values are ReadWrite and ReadOnly The name of the application. ‘SQL Management’ if no application name has been provided. Exceptions: ConnectionCannotBeChangedException InvalidPropertyValueException