Using Python to read and write to Access

In the process of learning Python , we will encounter the problem of reading and writing Access . At this time, we can use the COM component access function of the win32.client module to operate Access files through ADODB .

1. Import the module

import win32com.client

2. Establish a database connection

conn = win32com.client.Dispatch(r"ADODB.Connection") DSN ='PROVIDER = Microsoft.Jet.OLEDB.4.0;DATA SOURCE = test.mdb' conn.Open(DSN)

3. Open a recordset

rs = win32com.client.Dispatch(r'ADODB.Recordset') rs_name ='MEETING_PAPER_INFO' rs.Open('['+ rs_name +']', conn,1,3)

4. Operation on the record set

rs.AddNew () #Add a new record rs . Fields . Item ( 0 ). Value = "data" #The first record of the new record is "data" rs.Update ( ) #Update _ _

5. Use SQL statements to add, delete, and modify data

#add _ sql ="Insert Into [rs_name] (id, innerserial, mid) Values ('002133800088980002', 2, '21338')"#sql 语句 conn.Execute ( sql ) #Execute sql statement _ _ _ #delete _ sql ="Delete * FROM "+ rs_name +" where innerserial = 2" conn.Execute(sql) #change _ sql ="Update "+ rs_name +" Set mid = 2016 where innerserial = 3" conn.Execute(sql)

6. Traverse the record

rs . MoveFirst () #The cursor moves to the first record count =0 whileTrue:  if rs.EOF:  break  else:  for i in range(rs.Fields.Count):   #field name: field content   print(rs.Fields[i].Name, "：", rs.Fields[i].Value)  count += 1  rs.MoveNext()

7、关闭数据库

conn.close()