How to open sqlserver database

There are three ways to open a SQL Server database: Use the Object Explorer of SQL Server Management Studio (SSMS) Right-click the database and select "Open" Use the T-SQL command USE [database name] Run this command using The SqlConnection class of the .NET Framework opens the connection by establishing a connection string and using the Open() method

How to open a SQL Server database

There are many ways to open a SQL Server database. The following are three common ways:

1. Through SQL Server Management Studio (SSMS)

• Open SSMS and connect to the SQL Server instance.
• In Object Explorer, right-click the database you want to open and select Open.

2. Through T-SQL command

• Use T-SQL statement USE [database name], where [Database Name] is the name of the database to be opened.
• Run this command in the query window after connecting to the SQL Server instance.

3. Through .NET Framework

• Use the System.Data.SqlClient.SqlConnection class, which The following information is required:

  • Connection string (including server name, database name, and credentials)
  • Open the connection using the SqlConnection.Open() method

Example:

<code class="csharp">using System.Data.SqlClient;

namespace OpenDatabase
{
    class Program
    {
        static void Main(string[] args)
        {
            // 连接字符串
            string connectionString = "Server=localhost;Database=MyDatabase;User Id=sa;Password=password;";

            // 创建连接对象
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                // 打开连接
                connection.Open();
            }
        }
    }
}</code>

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