ocp protocol

Easy introduction to UML (4)-OCP is a progressive Cook, uml-ocpIn the previous chapter, we discussed the SRP principle of one of the five features of object-oriented design (OOD. In this section, we will look at another important principle: OCP principle (Open-Close principle ).Software entity shocould be open for extension, but closed for modificationReview in the previous section: 1. Easy introduction to

Introduction to OCP (OCP -- open-closed principle ): Software entities (classes, modules, functions, etc.) shocould be open for extension, but closed for modification. The software entity should be open to the extension and closed to the modification, that is, the software entity should be extended without modification (which may be achieved through the proxy mode in. net. Open for extension: when new requi

Course ObjectivesShare how to gain access to Oracle's OCP certification and exam process pits: Let's learn how to pass the Oracle OCP exam and how to obtain a OCP certificate. Applicable peopleIt related personnel, college students Course Introduction Share how to gain access to Oracle's OCP certification and exa

OCP and ocpOpen and closed Principle Turn: http://baike.baidu.com/view/2493421.htmTurn: http://dev.csdn.net/article/38/38826.shtmOCP (Open Closed Principle) is the core of all object-oriented principles. The goal of software design itself is to encapsulate changes and reduce coupling. The principle of openness and closure is the most direct embodiment of this goal. Other Design Principles often serve to achieve this goal.The core idea of the closed de

Chapter 1 ocp exam guide and ocp exam Guide Database storage structure: Physical database storage structure: Three types of files are required: ControlFile: multiplexing the controfile multiplexing Control File, pointing to other important files, storing serial numbers and timestamps Online redo log: redo log files are archived in the online redo log file box. there are a

2. Telnet protocolThe Telnet protocol is a member of the TCP/IP protocol family and is the standard protocol and main way of Internet remote Login service. It provides users with the ability to perform remote host work on the local computer. Use a Telnet program (such as Putty) on the end user's computer to connect to the server. End users can enter commands in t

OCP will end the competition for the container industry, a disruptive industry's standard format. Editor's note: the English version of this article is from VentureBeat, which is compiled by the Tiandi Zhuhai sub-rudder. The competition for container standards never stops when Docker-headed containers are sweeping around the world and the original application development and release methods are revolutionized. The competition for standards, the war

I finally completed all the OCP DBA courses. Tired! In general, Oracle certification is worth the test. I have a ccnp and MCSE certificate, but after passing the DBA examination, I feel that I have not only deepened my understanding of modern databases, but also enriched the knowledge structure of computer science. In my opinion, Oracle databases even have some operating system functions. There are quite a few things to remember about Oracle exams.

The five principles of OO refer to SRP, OCP, LSP, DIP, ISP.SRP--(single Responsibility Principle sole responsibility principle)ocp--Opening and closing principle (Closed for modification; Open for Extension)The recently collated documents are provided to you, here on the LSP focus on the introduction, hope for everyone to help, in the learning and use of OO design, we should understand: the advent of OO ena

Perhaps you know oca, OCP, ocm relationship is a more difficult than a test, a higher than a gold, but you know the specific test subjects, test methods, employment situation difference. If you don't know it, this article will make you glance at the plain. Difference One: Gold content OCA: The first step for database professionals to embark on Oracle database authentication Represents a basic knowledge of Oracle database management.

PHP 5 Principles for object-oriented OOP: Open closure principle--OCP I. Introduction of OCP (ocp--open-closed Principle): PHP Open Source comSoftware entities (classes,modules,functions,etc.) should is open for extension, but closed for modification.Software entities should be open to extensions and closed to modifications, i.e. software entities should not be m

I finally completed all the OCP DBA courses. Tired! In general, Oracle certification is worth the test. I have a ccnp and MCSE certificate, but after passing the DBA examination, I feel that I have not only deepened my understanding of modern databases, but also enriched the knowledge structure of computer science. In my opinion, Oracle databases even have some operating system functions. There are quite a few things to remember about Oracle exams. T

OCP principles in the field of Object-Oriented Design Keywords: Object-oriented Design1. Introduction to OCP (OCP -- open-closed principle ):Software entities (classes, modules, functions, etc.) shocould be open for extension, but closed for modification. The software entity should be open to the extension and closed to the modification, that is, the software ent

scope-memory;Alter system set LOCAL_LISTENER=NEW scope=memory;alter system register;20. At the operating system prompt, use the LSNRCTL service newlist to confirm that a new service has been registered with the new listener.21. Confirm that the new network environment is in effect by logging in using the following code:Sqlplus system/oracle@newExercise 4-2 setting up a shared server environmentThis exercise is a continuation of step 21 in exercise [4-1], where the user needs to configure a shar

= Db_name)))(3) External name resolutionLDAP Directory server1.7 Monitoring ManagerListener configuration file: $ORACLE _home/network/admin/listener.oraDefault listener host 1521 port.LISTENER =(Description_list =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP) (HOST = hostname) (PORT = 1521))(ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521))))The listener can use the NETCA program configuration.Listener Control Pr

Corresponding certificateOracle Certified Expert-OCP (Oracle certified Professional)Certification Prerequisites For OCP certification, OCA, OCP certification training and exams are required through the Oracle Licensing Training Test Center. OCA is a primer for Oracle certification system, proving that you have mastered the basic knowledge of the database, you can

Finally put OCP DBA's course all finished, tired Ah! Overall Oracle certification is worth the test. I have CCNP, MCSE certificate, but through the DBA examination, feel not only deepened the understanding of modern databases, but also enrich the knowledge structure of computer science. I think, in some ways, Oracle databases even have some operating system capabilities. Oracle's exams, there are quite a few things to remember, the exam requirements

You may know that OCA, OCP, ocm relationship is a more difficult than a test, a higher than a gold content, but you know the specific test subjects, test methods, the employment situation difference? If you don't know, this easy-to-read article will give you a glance.Difference One: Gold contentOCA: The first step for database professionals to embark on Oracle database certificationRepresents the basic knowledge of Oracle database management.OCP: The

The open-close principle (OCP) is called the cornerstone of OOD and is one of the most important principles of Ood. This principle was proposed by Master Bertrand Meyer in 1988 (Khan, at that time I am afraid few people in China know Oo, or even what the computer is): software entities shocould be open for extension, but closed for modification. How simple ?! This principle means that the software should be developed for expansion, and the modificatio

OCP certification test guide (1): basic concepts of Oracle OCP Certification Exam Guide (2): Installing Oracle Database 10 GB OCP certification test Guide (3): Create an Oracle database OCP certification test Guide (7): managing database users OCP certification test