For the first time, IBM's hardware team has released customer names and revenue figures from its ongoing "Migration Factory" campaign to snatch systems customers from competitors, particularly HP and            
                
                    
                        
                                                            
                                                                        
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                            2010-12-03 21:27:00
                            
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            Suppose that a website contains two tables, theCustomerstable and theOrderstable. Write a SQL query to find all customers who never order anything.Tab...            
                
                    
                        
                                                            
                                                                        
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                            2021-08-07 12:01:52
                            
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            题目链接:https://leetcode.com/problems/customers-who-never-orho never            
                
                    
                        
                                                            
                                                                        
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                            2023-07-26 16:47:36
                            
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            Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything.Table: Customers.+----+-------+| Id | Na            
                
                    
                        
                                                            
                                                                        
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                            2021-07-08 16:54:32
                            
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分析
写的好像有点问题
但是大致就是这个意思
代码很好理解
代码
#include<bits/stdc++.h>
using namespace std;
#define bt bitset<160>
const int inf = 0x3f3f3f3f;
int n,m,g[160][160];
bt ans[160],a[160],c[160];
struct no            
                
                    
                        
                                                            
                                                                        
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                            2019-11-08 15:02:00
                            
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            Catherine Louis and Shane Hastie are            
                
                    
                        
                                                            
                                                                        
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                            2011-01-06 12:49:00
                            
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            Replenishment: Article Master Data for External CustomersUseYou have to enter data in the article master to control the procedure and results of your replenishment planning. If you want to use Replenishment for external customers, two possible mainte            
                
                    
                        
                                                            
                                                                        
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                            2021-11-02 13:35:22
                            
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            Your Customers Do Not Mean What They Say Nate Jackson I’VE NEVER MET A CUSTOMER YET that wasn’t all too happy to tell me what they wanted—usually in g            
                
                    
                        
                                                            
                                                                        
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                            2017-08-11 18:32:00
                            
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            Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything            
                
                    
                        
                                                            
                                                                        
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                            2018-11-05 15:14:00
                            
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            Solaris now best deliver on the intended promise of free and open source software - with free licensing, a vibrant developer community, extensive ecosystem adoption and ISV's, along with multivendor h            
                
                    
                        
                                                            
                                                                        
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                            2006-11-17 13:24:49
                            
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            In the Application space, MySQL is very dominant with Web-based applications with them being the most popular.
 
 
 
 
MySQL’s customer base is centered in 5 key areas – Web            
                
                    
                        
                                                            
                                                                        
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                            2012-01-19 16:37:43
                            
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            Several mentality of SAP project customers in private enterprisesI worked on a private enterprise SAP implementation project a few years ago, which is referred to as project B here. The total budget o            
                
                    
                        
                                                            
                                                                        
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                            2021-12-03 15:42:33
                            
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            create or replace type paramlist as array(4) of varchar2(20); create or replace procedure firstproc(params in paramlist)             
                
                    
                        
                                                            
                                                                        
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                            2012-04-29 17:19:31
                            
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            LeetCode: 183. Customers Who Never Order题目描述Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anyth            
                
                    
                        
                                                            
                                                                        
                                                                                        原创
                                                                                    
                            2022-12-05 17:46:01
                            
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             oracle数据库的权限系统分为系统权限与对象权限。系统权限( database system privilege )可以让用户执行特定的命令集。例如,create table权限允许用户创建表,grant any privilege 权限允许用户授予任何系统权限。对象权限( database object privilege )可以让用户能够对各个对象进行某些操作。例如delete权限允许用户            
                
                    
                        
                                                            
                                                                        
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                            2013-04-22 10:08:47
                            
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             通常和表一起使用,用来生成唯一主键值,在插入数据时使用,但不属于任何表,独立于表存在    create sequence XXXstart with 1maxvalue 999999999999999minvalue 1nocyclenocachenoorder;...            
                
                    
                        
                                                            
                                                                        
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                            2023-05-15 22:53:57
                            
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            创建表空间及用户:create tablespace 表空间名 datafile 'd:/seal.dbf' size 10M autoextend on;create user username identified by password default tablespace 表空间名;grant connect,resource,dba to username; eg:1,创建表空            
                
                    
                        
                                                            
                                                                        
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                            2014-05-22 10:28:01
                            
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            目的:oracle中跨数据库查询      两台数据库服务器db_A(本地)和db_B(远程192.168.1.100),db_A下用户user_a 需要访问到db_B下user_b的数据解决:查询得知使用dblink(即database link  数据库链)实现过程:1、确定用户user_a有没有创建 dblink 的权限:             
                
                    
                        
                                                            
                                                                        
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                            2017-04-25 23:58:06
                            
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            CREATE TABLESPACE hidcDATAFILE 'D:\oracle\oradata\hidc.DBF' -- 数据文件存放的位置SIZE 5M-- 初始大小AUTOEXTEND ON;-- 自动增长(开)CREATE USER hidc-- 指定用户名IDENTIFIED BY hidc-- 指定登录密码DEFAULT TABLESPACE hidc-- 指定默认表空间,如果不指定将用SYSTEM表空间作为默认表空间(可选)TEMPORARY TABLESPACE TEMP;-- 指定临时表空间(可选)GRANT CONNECT TO hidc;GRANT RESOURCE T            
                
                    
                        
                                                            
                                                                        
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                            2010-12-19 16:20:00
                            
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            Oracle创建联合主键先创建个表: 1) create table test ( sno char(12), name char(4), CONSTRAINT PK_test PRIMARY KEY (sno,name) -- 联合主键 ); 2) 创建表之后追加联合主键: alter table ...            
                
                    
                        
                                                            
                                                                        
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                            2021-09-06 13:18:00
                            
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