c# - 如何使用 OleDb、C# 执行 SHOW 语句？

Question

尝试使用以下 C# 代码来获取数据库中的所有表名， 但我收到一条错误消息:

"System.Data.OleDb.OleDbException (0x80040E14): Invalid SQL statement; expected 'DELETE', 'INSERT', 'PROCEDURE', 'SELECT', or 'UPDATE'..."

OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + tbx_Source.Text + ";");
OleDbCommand cmd = new OleDbCommand("SHOW TABLES;", conn);
OleDbDataReader reader;

try
{
    conn.Open();
    reader = cmd.ExecuteReader();
    if (reader.HasRows)
    {
        while (reader.Read())
        {
            cbx_Tables.Items.Add(reader.GetValue(0).ToString());
        }
    }
}
catch (Exception ex)
{
    MessageBox.Show(ex.ToString());
}

如何使用 OleDb 执行此类命令？

谢谢:)

Answer 1

由于您想显示数据库(即mdb)中的所有表，您可以尝试

           DbProviderFactory factory = DbProviderFactories.GetFactory("System.Data.OleDb");

           DataTable userTables = null;
           using (DbConnection connection = factory.CreateConnection())
           {

               connection.ConnectionString = "Provider=Microsoft.Ace.OLEDB.12.0;Data  
               Source=C:\test\testfile.accdb;Jet OLEDB:Database Password=yourrPassword;";

                string[] restrictions = new string[4];
                restrictions[3] = "Table";

                connection.Open();

                // Get list of user tables
                userTables = connection.GetSchema("Tables", restrictions);


                foreach (DataRow item in userTables.Rows) // You can use simple 
                                                          //looping to retreive the table Name
                {



                }
            }

为我工作