本文实例讲述了python使用Berkeley DB数据库的方法,分享给大家供大家参考。
具体实现方法如下:
try: from bsddb import db except ImportError: from bsddb3 import db print db.DB_VERSION_STRING #检测是否有bsddb包 def irecords(curs): record = curs.first() while record: yield record record = curs.next() adb = db.DB() adb.open('db_filename',dbtype = db.DB_HASH, flags = db.DB_CREATE) for i,w in enumerate('some word for example'.split()): adb.put(w,str(i)) for key, data in irecords(adb.cursor()): print key,data adb.close() print '*'*60 # the_same_db = db.DB() the_same_db.open("db_filename") the_same_db.put('skidoo','23')#加入数据库 the_same_db.put('for','change the data')#改变数据库的数据 for key, data in irecords(the_same_db.cursor()): print key,data the_same_db.close()
运行结果如下:
Berkeley DB 4.7.25: (May 15, 2008) example 3 some 0 word 1 for 2 ************************************************************ example 3 some 0 word 1 for change the data skidoo 23
这里再总结一下操作步骤:
1.先初始化数据库
adb = db.DB()
2.打开数据库
adb.open('db_filename',dbtype = db.DB_HASH, flags = db.DB_CREATE)
3.插入或修改数据库中的数据
adb.put('skidoo','23')#加入数据库 adb.put('for','change the data')#改变数据库的数据
4.关闭数据库
adb.close()
希望本文所述对大家的Python程序设计有所帮助。

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