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php大力力 [052节] php数据库页面修改功能…
[OCP|052]OCP最新题库解析(052)--小麦苗解答版 OCP最新题库解析历史连接(052):http://mp.weixin.qq.com/s/bUgn4-uciSndji_pUbLZfA ⊙ [OCP最新题库解析(052)--题3]Which two are true about external tables?⊙ [OCP最新题库解析(052)--题2]...is true about FAST_START_MTTR_TARGET⊙ [OCP最新题库解析(052)--题1]Whic…
没看到Beginner,然后就做啊做,发现A,B太简单了...然后想想做完算了..没想到C卡了一下,然后还是做出来了.D的话瞎想了一下,然后感觉也没问题.假装all kill.2333 AtCoder Beginner Contest 052 A题意: 输出大的面积? 思路: max(A*B,C*D); AtCoder Beginner Contest 052 B题意: 枚举过程,然后...太水了.. AtCoder Beginner Contest 052 C题意: 输出N!的因子个数mod1…
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Follow up for N-Queens problem. Now, instead outputting board configurations, return the total number of distinct solutions. 解题思路:和上题一样<JAVA语言程序设计>中exerice6-22已经给出了计算count的代码,直接拿来用即可,JAVA实现如下: static public int totalNQueens(int n) { if(n==1) return…
Oracle Database 11g:Administration I 考试时间:90分钟 考试题目:70题 考试语言:英语 考试分数:66% 考试内容: 了解Oracle数据库体系结构 解释的内存结构描述了这个过程的结构存储结构概述 准备数据库环境 确定用于管理Oracle数据库的工具规划Oracle数据库安装通过使用Oracle Universal Installer(OUI)安装Oracle软件 创建Oracle数据库 创建一个数据库,使用数据库配置助手(DBCA) 管理Oracle实例…
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A - Two Rectangles Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement There are two rectangles. The lengths of the vertical sides of the first rectangle are A, and the lengths of the horizontal sides of the first rectangle…
NandFlash读数据方式 1.页读,读出页中主数据区的所有数据,提供页地址(行地址) 2.随机读,读出页中指定的存储单元的数据,提供页地址(行地址)和页内偏移(行地址) 代码编写 1.根据NandFlash中的读时序图写出工作流程,可以通过在芯片手册中搜索operation找到相关描述 2.主要关心的是IO脚上时序的变化 3.初始化闪存分为初始化闪存控制器和闪存芯片 4.对位操作 4.1.清零 x &= ~(y<<z)   对x的z位开始的y清零 4.2.置1 x |= y<…
参考https://www.cnblogs.com/CloudMan6/p/7305989.html   今天开始学习 overlay 网络跨主机通信的原理   root@host01:~# ufw allow 4789/udp root@host01:~# ufw status numbered Status: active      To                         Action      From      --                         ----…
一:create 1.开始使用命令 2.创建 bin/kafka-topics.sh --create --topic beifeng --zookeeper linux-hadoop01.ibeifeng.com:2181/kafka --replication-factor 3 --partitions 4 成功效果: 3.参数说明 create:表示创建动作 topic:指定创建的名称 zookeeper:指定连接kafka集群的zk的配置url partitions:给定当前topic的…
一:大纲介绍 1.导入方式 load data local inpath 'local_file_path' into table tbname partition (date='',hour=''); 2.获取数据源 20161114/2016111402.log /2016111403.log /2016111404.log .......... 3.hive准备 导入分区表 二:准备 1.日志目录准备 日志目录:/etc/opt/datas/log_hive 日志的文件夹:20161114…
overlay 如何实现跨主机通信? 在 host2 中运行容器 bbox2: docker run -itd --name bbox2 --network ov_net1 busybox bbox2 IP 为 10.0.0.4,可以直接 ping bbox1: 可见 overlay 网络中的容器可以直接通信,同时 docker 也实现了 DNS 服务. overlay 网络的具体实现: docker 会为每个 overlay 网络创建一个独立的 network namespace,其中会有一个…
4: You have two tables with referential integrity enforced between them. You need to insert data to the child table first because it is going to be a long transaction and data for the parent table will be available in a later stage, which can be inse…
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>使用vue-cli初始化单页面应用</title> <script src="vue.js"></script> </head> <body> <!-- directive: bind…
8.Which two are true about the Fast Recovery Area (FRA)? A) It should be larger than the database. B) Space management In the FRA Is Influenced by the database backup retention policy. C) A database must be in ARCHIVELOG mode to use the FRA. D) It mu…
7.Which is true about external tables? A) The ORACLE_DATAPUMP access driver can be used to write data to external tables. B) Segments are allocated for external tables. C) They do not support partitioning. D) They may have Indexes. E) DML operations…
6.You are installing Oracle Grid Infrastructure by using the Oracle Universal Installer (OUI). You select the "Install and Configure Grid Infrastructure for a Standalone Server" option. Which task is performed by OUI as part of this installation…
5.Which two affect the time taken for instance recovery? A) size of redo logs B) size of UNDO tablespace C) FAST_START_MTTR_TARGET value D) size of archivelogs E) size of existing RMAN backupsets F) UNDO_RETENTION value Answer:AC…
4.For which requirement should you configure shared servers? A) accommodating an increasing number of users who run short-duration, infrequent queries in an OLTP environment with limited memory B) accommodating an increasing number of users who run a…
3.Which structure can span multiple data files?❑ A) a permanent tablespace❑ B) a bigfile tablespace❑ C) a temporary tablespace❑ D) a segment❑ E) an extent • Answer:ACD…
2.Which two are true about Optimizer Statistics? ❑ A) They do not persist across Instance restarts. ❑ B) They are automatically updated when DDL statements execute. ❑ C) They are gathered by the Manageability Monitor (MMON) background process. ❑ D) T…
1..Which two are true about the Archive (ARCn) processes?❑ A) They automatically delete obsolete archive logs to makespace for new archive logs.❑ B) They are used during Instance recovery.❑ C) They archive redo directly from the redo log buffer.❑ D)…
38.Which three are true about the Automatic Database Diagnostic Monitor (ADDM)? A) Its findings are accessible only by using Oracle Enterprise Manager. B) It improves database performance by automatically implementing Oracle's best practices. C) It c…
37.USER1 grants SELECT, INSERT, and UPDATE privileges on USER1. EMP to USER2. SYS executes this command: SQL> REVOKE UPDATE ON user1.emp FROM user1; What will be the outcome? A) It will succeed and only USER2 will be unable to perform SELECT,INSERT,…
36.Which two are true about roles? A) A role can be granted a combination of system and object privileges and other roles. B) The CONNECT role Is granted automatically to a user when It Is created. C) Roles are owned by SYSTEM. D) The RESOURCE role I…
35.Your database is using Automatic Memory Management. Which two SGA components must be managed manually? A) default buffer cache B) redo log buffer C) large pool D) shared pool E) keep buffer pool Answer:BE…
34.Which two can be backed up by using RMAN when a database Is open in ARCHIVELOG mode, so that media recovery can be performed If required? A) control files B) password file C) pfile D) online redo logs E) flashback logs F) data files Answer:AF…
33.Where Is backup metadata stored for use by Recovery Manager (RMAN)? A) In the control file B) In the SYSAUX tablespace C) in the SPFILE D) in the SYSTEM tablespace E) In the diagnostic destination flies Answer:A…