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HomeBackend DevelopmentPython TutorialPython3实现连接SQLite数据库的方法

本文实例讲述了Python3实现连接SQLite数据库的方法,对于Python的学习有不错的参考借鉴价值。分享给大家供大家参考之用。具体方法如下:

实例代码如下:

import sqlite3

db = r"D:\pyWork\test.db"  #pyWork目录下test.db数据库文件
drp_tb_sql = "drop table if exists staff"
crt_tb_sql = """
create table if not exists staff(
  id integer primary key autoincrement unique not null,
  name varchar(100),
  city varchar(100)
);
"""

#连接数据库
con = sqlite3.connect(db)
cur = con.cursor()

#创建表staff
cur.execute(drp_tb_sql)
cur.execute(crt_tb_sql)

#插入记录
insert_sql = "insert into staff (name,city) values (?,?)"  #?为占位符
cur.execute(insert_sql,('Tom','New York'))
cur.execute(insert_sql,('Frank','Los Angeles'))
cur.execute(insert_sql,('Kate','Chicago'))
cur.execute(insert_sql,('Thomas','Houston'))
cur.execute(insert_sql,('Sam','Philadelphia'))

con.commit()

#查询记录
select_sql = "select * from staff"
cur.execute(select_sql)

#返回一个list,list中的对象类型为tuple(元组)
date_set = cur.fetchall()
for row in date_set:
  print(row)

cur.close()
con.close()

希望本文实例对大家的Python学习有所帮助。

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