Python MySQLdb模塊
mysql是一個優秀的開源數據庫,它現在的應用非常的廣泛,因此很有必要簡單的介紹一下用python操作mysql數據庫的方法。python操作數 據庫需要安裝一個第三方的模塊,在http://mysql-python.sourceforge.net/有下載和文檔。
#-- encoding: gb2312 -- import os, sys, string import MySQLdb連接數據庫
try: conn = MySQLdb.connect(host='localhost',user='root',passwd='xxxx',db='test1') except Exception, e: print e sys.exit()
獲取cursor對象來進行操作
cursor = conn.cursor()
創建表
sql = "create table if not exists test1(name varchar(128) primary key, age int(4))" cursor.execute(sql)
插入數據
sql = "insert into test1(name, age) values ('%s', %d)" % ("zhaowei", 23) try: cursor.execute(sql) except Exception, e: print e
sql = "insert into test1(name, age) values ('%s', %d)" % ("張三", 21) try: cursor.execute(sql) except Exception, e: print e
插入多條
sql = "insert into test1(name, age) values (%s, %s)" val = (("李四", 24), ("王五", 25), ("洪六", 26)) try: cursor.executemany(sql, val) except Exception, e: print e
查詢出數據
sql = "select * from test1" cursor.execute(sql) alldata = cursor.fetchall()
如果有數據返回,就循環輸出, alldata是有個二維的列表
if alldata: for rec in alldata: print rec[0], rec[1]
cursor.close()
conn.close()</pre>