python对mysql数据库访问的MySQLdb

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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])

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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])

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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])