1、基本操作
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# -*- coding: utf-8 -*-
#!/usr/bin/env
python
import sqlite3
def mykey(x):
return x[3]
conn=sqlite3.connect("D:\\demo\\my_db.db")
sql = "CREATE TABLE IF NOT EXISTS mytb ( a char , b int , c real, d DATE)"
# a char , b int , c real 表示该表有三个字段，
# a 是字符串类型， b 是整数类型, c 是实数类型。
conn.execute( sql )
cs = conn.cursor()
#cs.execute("DELETE FROM mytb WHERE A='张三' ")
cs.execute("DELETE FROM mytb ")
#删除所有记录
'''''
cs.execute( "INSERT INTO mytb ( a,b,c,d ) values('Zhang San',25, 120, '2014-03-04')" )
cs.execute( "INSERT INTO mytb ( a,b,c,d ) values( 'Wang Wu',24, 110, '2014-05-01')" )
cs.execute( "INSERT INTO mytb ( a,b,c,d ) values( 'Li Si',23, 130, '2014-04-06')" )
'''
#批量注入，batchdata是一个列表，列表里每一个元素都是一个元组
batchdata=[('Zhang San',25, 120, '2014-03-04'),
( 'Wang Wu',24, 110, '2014-05-01'),
( 'Li Si',23, 130, '2014-04-06')]
cs.executemany('INSERT INTO mytb values (?,?,?,?)',batchdata)
conn.commit() #将加入的记录保存到磁盘，非常重要！
cs.execute("SELECT name, sql FROM sqlite_master WHERE type='table'")
recs = cs.fetchall( )
print ( recs )
cs.execute( "SELECT * FROM mytb ")#打开数据表
recs = cs.fetchall()#取出所有记录
print ( "there is ", len(recs)," notes." )
print recs
recs.sort(key = mykey)
print recs
cs.close()
conn.close()
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以上代码参考Python中使用SQLite数据库简明教程，有少量改动
最新内容请见作者的GitHub页：http://qaseven.github.io/
