python操作MySQL数据库(转)

import MySQLdb

try:

    conn=MySQLdb.connect(host='localhost',user='root',passwd='root',db='test',port=3306)

    cur=conn.cursor()

    cur.execute('select * from user')

    cur.close()

    conn.close()

except MySQLdb.Error,e:

     print "Mysql Error %d: %s" % (e.args[0], e.args[1])

import MySQLdb

try:

    conn=MySQLdb.connect(host='localhost',user='root',passwd='root',port=3306)

    cur=conn.cursor()

    cur.execute('create database if not exists python')

    conn.select_db('python')

    cur.execute('create table test(id int,info varchar(20))')

    value=[1,'hi rollen']

    cur.execute('insert into test values(%s,%s)',value)

    values=[]

    for i in range(20):

        values.append((i,'hi rollen'+str(i)))

    cur.executemany('insert into test values(%s,%s)',values)

    cur.execute('update test set info="I am rollen" where id=3')

    conn.commit()

    cur.close()

    conn.close()

except MySQLdb.Error,e:

     print "Mysql Error %d: %s" % (e.args[0], e.args[1])

import MySQLdb

try:

    conn=MySQLdb.connect(host='localhost',user='root',passwd='root',port=3306)

    cur=conn.cursor()

    conn.select_db('python')

    count=cur.execute('select * from test')

    print 'there has %s rows record' % count

    result=cur.fetchone()

    print result

    print 'ID: %s info %s' % result

    results=cur.fetchmany(5)

    for r in results:

        print r

    print '=='*10

    cur.scroll(0,mode='absolute')

    results=cur.fetchall()

    for r in results:

        print r[1]

    conn.commit()

    cur.close()

    conn.close()

except MySQLdb.Error,e:

     print "Mysql Error %d: %s" % (e.args[0], e.args[1])