input: def select_approved_rows():
      """
      Execute an SQL query to select all rows from a table where the 'status' is 'approved'.
      
      >>> select_approved_rows()
      [(1, 'approved', 'Example1'), (2, 'approved', 'Example2')]
      """
output:     
      import sqlite3
      conn = sqlite3.connect('example.db')
      cursor = conn.cursor()
      cursor.execute("SELECT * FROM table_name WHERE status = 'approved'")
      result = cursor.fetchall()
      conn.close()
      return result
  