python3 连接sqlite实例,直接上代码吧
python3 连接sqlite实例,直接上代码吧
import sqlite3 db = r"D:pyWork est.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()
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