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#Sql server connection string network library how to#
#Sql server connection string network library full#
#Sql server connection string network library password#

To use this object and connect to the database, we need to execute its Open() method, and after the database is finished we need to call the Close() method to close the connection. SqlConnection_1 connection = new SqlConnection_1(connectionString_1) Ĭonsole.WriteLine_1("Connection is open") Ĭonsole.WriteLine("Connection is closed.") Ī connection string is passed to the SqlConnection object in the constructor, which initializes the object. String connectionString_1 = Source=.\SQLEXPRESS Initial Catalog=usersdb_1 Integrated Security=True"

#Sql server connection string network library password#

String connectionString _1 = Source _1=.\SQLEXPRESS Initial Catalog=usersdb User Id _1 = sa Password = 1234567fd" " To connect to the database, we need to create and use the SqlConnection object Workstation ID: points to a workstation – the name of the local computer running SQL Serverįor example, if a connection requires a login and password, we can pass them to the connection string through the parameters user id and password:.Can take values of true, false, yes and no. Persist Security Info: indicates whether confidential information should be transferred back when connected.Can take a value that is multiple of 512. Packet Size: the size of the network packet in bytes.Default value is false, yes, no, and sspi. Trusted_Connection can be used as an alternative parameter name. Can take values of true, false, yes, no and sspi. Integrated Security: sets the authentication mode.Initial Catalog: stores database name. As an alternative parameter name, you can use Database.Encrypt: establishes SSL encryption when connected.This can be the name of the local server, such as “EUGENEPC/SQLEXPRESS”, or the network address. You can use Server, Address, Addr and NetworkAddress as an alternative parameter name. Data Source: the name of the SQL Servera instance that you want to communicate with.Default value is 15. Connection Timeout can be used as an alternative parameter name. Accepts one of the values from 0-32767 interval. Connect Timeout: The time period in seconds through which a connection is expected to be established.

#Sql server connection string network library full#

AttachDBFileName: stores the full path to the attached database.

Default value: “.Net SqlClient Data Provide”.

Application Name: The name of the application.

Using the ConfigurationManager.ConnectionStrings _1 object, we can get the connection string and use it in the application. String connectionString_1 = _1 įirst of all, to work with the application configuration, we need to add the library to the project. string_1 connectionString = Source=.\SQLEXPRESS Initial Catalog=usersdb_1 Integrated Security=True" Now we will get this connection string in the application: Since we will connect to the MS SQL Server database, we will use the providerName for SQL Server, the functionality of which is contained in the namespace. And the third attribute providerName sets the namespace of the data provider. The connectionString attribute actually stores the connection string, that is all the text that we defined above in the Main method. In this case the connection string is called “DefaultConnection”. We can use many connection strings in an application and accordingly we can also define many elements in a file.Įach connection string has a name defined by the name attribute. In this node connection strings are defined using the element. To define all connections in the program, a new node is added within the node.

In our case, since we have created a console application project, we should have an App.config file in the project, which currently has the following definition:

Although the application can also use other ways to define the configuration. In desktop application projects it is App.config file, while in web applications it is mostly Web.config file. A much more flexible path represents its definition in special configuration files of an application.

its definition in application code) is usually rarely used. Hard coding of the connection string (i.e.

Integrated Security: establishes authentication.

Initial Catalog: indicates the name of the database on the server.

If the database server name is different, then it should be used accordingly. Since a slash is used in the string, the character is placed at the beginning of the string.

Data Source: points to the server name.

In this case, to connect to the previously created usersdb _1 database, we define the connection string from three parameters: The connection string represents a set of parameters in the form of key=value pairs. The connection string represents a set of parameters

#Sql server connection string network library how to#

How to Create Connection String For SQL Server.

To connect to the database, we need to create and use the SqlConnection object.

The connection string represents a set of parameters.