本文實例為大家分享如何利用Python對資料庫的增刪改查進行簡單的封裝,供大家參考,具體內容如下
1.insert
#
import mysql.connector import os import codecs #设置数据库用户名和密码 user='root';#用户名 pwd='root';#密码 host='localhost';#ip地址 db='mysql';#所要操作数据库名字 charset='UTF-8' cnx = mysql.connector.connect(user=user,password=pwd, host=host, database=db) #设置游标 cursor = cnx.cursor(dictionary=True) #插入数据 #print(insert('gelixi_help_type',{'type_name':'\'sddfdsfs\'','type_sort':'283'})) def insert(table_name,insert_dict): param=''; value=''; if(isinstance(insert_dict,dict)): for key in insert_dict.keys(): param=param+key+"," value=value+insert_dict[key]+',' param=param[:-1] value=value[:-1] sql="insert into %s (%s) values(%s)"%(table_name,param,value) cursor.execute(sql) id=cursor.lastrowid cnx.commit() return id
2.delete
def delete(table_name,where=''): if(where!=''): str='where' for key_value in where.keys(): value=where[key_value] str=str+' '+key_value+'='+value+' '+'and' where=str[:-3] sql="delete from %s %s"%(table_name,where) cursor.execute(sql) cnx.commit()
3.select
#取得数据库信息 # print(select({'table':'gelixi_help_type','where':{'help_show': '1'}},'type_name,type_id')) def select(param,fields='*'): table=param['table'] if('where' in param): thewhere=param['where'] if(isinstance (thewhere,dict)): keys=thewhere.keys() str='where'; for key_value in keys: value=thewhere[key_value] str=str+' '+key_value+'='+value+' '+'and' where=str[:-3] else: where='' sql="select %s from %s %s"%(fields,table,where) cursor.execute(sql) result=cursor.fetchall() return result4.showtable,showcolumns
#显示建表语句 #table string 表名 #return string 建表语句 def showCreateTable(table): sql='show create table %s'%(table) cursor.execute(sql) result=cursor.fetchall()[0] return result['Create Table'] #print(showCreateTable('gelixi_admin')) #显示表结构语句 def showColumns(table): sql='show columns from %s '%(table) print(sql) cursor.execute(sql) result=cursor.fetchall() dict1={} for info in result: dict1[info['Field']]=info return dict1###以上就是Python Sql資料庫增訂作業的相關操作,希望對大家的學習有幫助。 ######更多Python的Sql資料庫增刪改查操作簡單封裝方法相關文章請關注PHP中文網! ###