python中查看.db文件中表格的名字及表格中的字段操作

# coding:utf-8
import sqlite3
conn = sqlite3.connect("C:\\Users\\Administrator\\Desktop\\密码账号.db")
cursor = conn.cursor()
sql = """select name from sqlite_master where type='table' order by name"""
cursor.execute(sql)
result = cursor.fetchall()
print result
print type(result)
conn.close()

D:\Python3\python27\python.exe D:/PyCharm/dytt_spider/mongo.py
[(u'students',)]
<type 'list'>
 
Process finished with exit code 0

# coding:utf-8
import sqlite3
conn = sqlite3.connect("C:\\Users\\Administrator\\Desktop\\密码账号.db")
cursor = conn.cursor()
sql = """pragma table_info(students)"""
cursor.execute(sql)
result = cursor.fetchall()
print result
print type(result)
conn.close()

D:\Python3\python27\python.exe D:/PyCharm/dytt_spider/mongo.py
[(0, u'name', u'text', 0, None, 0), (1, u'usename', u'text', 0, None, 0), (2, u'id', u'int', 0, None, 0)]
<type 'list'>
 
Process finished with exit code 0

#导入模块
import sqlite3
#创建链接
con = sqlite3.connect('C:\python_learn\DBA\SQLite3demo\sqlite3demo.db')
#创建游标对象
cur = con.cursor()
#编写sql语句
sql = "select * from t_person "
#执行语句
try:
  cur.execute(sql)
  #获取结果集
  person_all = cur.fetchall() #获取所有数据
  # person_all = cur.fetchone() #获取一条数据
  for person in person_all:
    print(person)
  print("查询数据成功")
except Exception as e:
  print(e)
  print("查询数据失败")
finally:
  cur.close()
  con.close()