Python操作数据库SQLite

fmms 12年前

使用ptyhon实现了一下,实现不多描述了,代码中的注释已经非常详细了。直接贴上来。
1. 实现:

#!/usr/bin/env python  # -*- coding: utf-8 -*-    #导入日志及SQLite3模块  import logging  import logging.config  import sqlite3    #日志配置文件名  LOG_FILENAME = 'logging.conf'    #日志语句提示信息  LOG_CONTENT_NAME = 'sqlite_log'    #SQLite数据库名称  DB_SQLITE_PATH = ".\\db\\sqlite_pytest.db"    def log_init(log_config_filename, logname):      '''      Function:日志模块初始化函数      Input:log_config_filename:日志配置文件名             lognmae:每条日志前的提示语句      Output: logger      author: socrates      date:2012-02-11      '''      logging.config.fileConfig(log_config_filename)      logger = logging.getLogger(logname)      return logger    def operate_sqlite3_tbl_product():      '''      Function:操作SQLITE3数据库函数      Input:NONE      Output: NONE      author: socrates      date:2012-02-11      '''        sqlite_logger.debug("operate_sqlite3_tbl_product enter...")             #连接数据库        try:          sqlite_conn = sqlite3.connect(DB_SQLITE_PATH)      except sqlite3.Error, e:           print 'conntect sqlite database failed.'           sqlite_logger.error("conntect sqlite database failed, ret = %s" % e.args[0])               return                 sqlite_logger.info("conntect sqlite database(%s) succ." % DB_SQLITE_PATH)              #获取游标       sqlite_cursor = sqlite_conn.cursor()            #删除表      sql_desc2 = "DROP TABLE IF EXISTS tbl_product3;"      try:          sqlite_cursor.execute(sql_desc2)      except sqlite3.Error, e:           print 'drop table failed'           sqlite_logger.error("drop table failed, ret = %s" % e.args[0])           sqlite_cursor.close()           sqlite_conn.close()                 return      sqlite_conn.commit()                sqlite_logger.info("drop table(tbl_product3) succ.")             #建表      sql_desc = '''CREATE TABLE tbl_product3(      i_index INTEGER PRIMARY KEY,      sv_productname VARCHAR(32)      );'''      try:          sqlite_cursor.execute(sql_desc)      except sqlite3.Error, e:           print 'drop table failed.'           sqlite_logger.error("drop table failed, ret = %s" % e.args[0])           sqlite_cursor.close()           sqlite_conn.close()               return          sqlite_conn.commit()            sqlite_logger.info("create table(tbl_product3) succ.")             #插入记录      sql_desc = "INSERT INTO tbl_product3(sv_productname) values('apple')"      try:          sqlite_cursor.execute(sql_desc)      except sqlite3.Error, e:          print 'insert record failed.'          sqlite_logger.error("insert record failed, ret = %s" % e.args[0])            sqlite_cursor.close()          sqlite_conn.close()              return          sqlite_conn.commit()            sqlite_logger.info("insert record into table(tbl_product3) succ.")             #查询记录      sql_desc = "SELECT * FROM tbl_product3;"          sqlite_cursor.execute(sql_desc)      for row in sqlite_cursor:          print row          sqlite_logger.info("%s", row)             #关闭游标和数据库句柄          sqlite_cursor.close()      sqlite_conn.close()            sqlite_logger.debug("operate_sqlite3_tbl_product leaving...")     if __name__ == '__main__':             #初始化日志系统      sqlite_logger = log_init(LOG_FILENAME, LOG_CONTENT_NAME)               #操作数据库      operate_sqlite3_tbl_product()      
2. 运行后的日志信息:
[2012-02-12 12:13:52,131  sqlite_log]DEBUG:  operate_sqlite3_tbl_product enter... (test_log.py:39)  [2012-02-12 12:13:52,147  sqlite_log]INFO:  conntect sqlite database(.\db\sqlite_pytest.db) succ. (test_log.py:49)  [2012-02-12 12:13:52,147  sqlite_log]INFO:  drop table(tbl_product3) succ. (test_log.py:66)  [2012-02-12 12:13:52,240  sqlite_log]INFO:  create table(tbl_product3) succ. (test_log.py:83)  [2012-02-12 12:13:52,365  sqlite_log]INFO:  insert record into table(tbl_product3) succ. (test_log.py:97)  [2012-02-12 12:13:52,365  sqlite_log]INFO:  (1, u'apple') (test_log.py:104)  [2012-02-12 12:13:52,365  sqlite_log]DEBUG:  operate_sqlite3_tbl_product leaving... (test_log.py:110)
3.通过命令行查看:
Microsoft Windows XP [版本 5.1.2600]  (C) 版权所有 1985-2001 Microsoft Corp.    C:\Documents and Settings\socrates.WINXP-DUANYX>cd /d E:\Study\学习\工作程序\py_  test\src\db    E:\Study\学习\工作程序\py_test\src\db>sqlite3.exe sqlite_pytest.db  SQLite version 3.7.9 2011-11-01 00:52:41  Enter ".help" for instructions  Enter SQL statements terminated with a ";"  sqlite> .tables  tbl_product3  sqlite> select * from tbl_product3;  1|apple  sqlite> .quit    E:\Study\学习\工作程序\py_test\src\db>
来自:http://blog.csdn.net/dyx1024/article/details/7252274