Teradata MCP Server

Instructions

Implementation Reference

• src/teradata_mcp_server/tools/base/base_tools.py:101-134 (handler)

  The handler function that implements the base_tableList tool. It executes a SQL query to list tables (T, V, O, Q kinds) optionally filtered by database_name, formats results with metadata including the tool_name.

  def handle_base_tableList(conn: TeradataConnection, database_name: str | None = None, *args, **kwargs):
      """
      Lists all tables in a database.
  
      Arguments:
        database_name - Database name
  
      Returns:
        ResponseType: formatted response with query results + metadata
      """
      logger.debug(f"Tool: handle_base_tableList: Args: database_name: {database_name}")
  
      sql = "select TableName from dbc.TablesV tv where tv.TableKind in ('T','V', 'O', 'Q')"
      params = []
  
      if database_name:
          sql += " and UPPER(tv.DatabaseName) = UPPER(?)"
          params.append(database_name)
  
      with conn.cursor() as cur:
          rows = cur.execute(sql, params)
          data = rows_to_json(cur.description, rows.fetchall())
          metadata = {
              "tool_name": "base_tableList",
              "sql": sql.replace("?", f"'{database_name}'"),
              "columns": [
                  {"name": col[0], "type": col[1].__name__ if hasattr(col[1], '__name__') else str(col[1])}
                  for col in cur.description
              ] if cur.description else [],
              "row_count": len(data)
          }
          logger.debug(f"Tool: handle_base_tableList: metadata: {metadata}")
          return create_response(data, metadata)