Question

如何将数据添加到SQL Server Express数据库？

我写了以下代码

 SqlConnection conn = new SqlConnection();
 conn.ConnectionString = @"Data Source=.\SQLExpress;" 
    +"User Instance=true;" +  "Integrated Security=true;" 
    +  "AttachDbFilename=|DataDirectory|GCdatabase.mdf;";
 conn.Open();
 //...
 conn.Close();

这是对的吗？

如果是，那么如何将数据添加到表中？

Answer 1

        string connstring = @"Data Source=.\SQLExpress;" +
                             "User Instance=true;" +
                             "Integrated Security=true;" +
                             "AttachDbFilename=|DataDirectory|GCdatabase.mdf;";
        string insertSql = "INSERT INTO Table " +
                          "(Column1, Column2) VALUES " +
                          "(@Column2, @Column2); SELECT @@identity;";

        using (SqlConnection connection =
               new SqlConnection(connstring))
        {
            SqlCommand command = connection.CreateCommand();
            command.CommandText = insertSql;

            command.Parameters.Add(new SqlParameter("@Column1", Column1));
            command.Parameters.Add(new SqlParameter("@Column2", Column2));

            connection.Open();

            command.ExecuteNonQuery();
        }

Answer 2

有几种方法可以做到这一点。其中一个是使用带有SqlCommand SQL语句的insert对象：

SqlConnection conn = new SqlConnection();
conn.ConnectionString(/* your connection string goes here */);
conn.Open();
SqlCommand cmd = new SqlCommand("insert into table values (1, 2, 3)", conn);
cmd.ExecuteNonQuery();
conn.Close();

如何将数据插入SQL Server Express数据库

2 个答案: