Question

如果我可以在C＃中打开与MS Access文件的连接，如何检索Access DB中存在的不同表的列表（如果可能，还有与表关联的任何元数据）？

Answer 1

找到了以下解决方案

// Microsoft Access provider factory
DbProviderFactory factory = DbProviderFactories.GetFactory("System.Data.OleDb");

DataTable userTables = null;
using (DbConnection connection = factory.CreateConnection()) {
  // c:\test\test.mdb
  connection.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\\test\\test.mdb";
  // We only want user tables, not system tables
  string[] restrictions = new string[4];
  restrictions[3] = "Table";

  connection.Open();

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

List<string> tableNames = new List<string>();
for (int i=0; i < userTables.Rows.Count; i++)
    tableNames.Add(userTables.Rows[i][2].ToString());

Answer 2

以下是一些链接：

这是一个VB.NET片段，用于获取访问表的所有列，我知道它并不是您正在寻找的内容，但在列出所有表格时类似的原则：

Dim oleConn As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & myDB & ";User Id=admin;Password=;")

oleConn.Open()
Dim schemaTable As DataTable
Dim i As Integer
schemaTable = oleConn.GetOleDbSchemaTable(OleDbSchemaGuid.Column s, _
New Object() {Nothing, Nothing, "tblTheTableToListColumns", Nothing})
For i = 0 To schemaTable.Columns.Count - 1
Debug.Print(schemaTable.Rows(i)!COLUMN_NAME.ToStri ng)
Next i
oleConn.Close()

检索MS Access文件中的表列表

2 个答案: