There are many interfaces in the current project, the data source may be different database or different users of the table, to access the table caused a certain amount of trouble. This time you can use synonyms to simplify.
The syntax for synonyms is: CREATE [OR REPLACE] [public] synonym [schema.] Synonym name for [schema.] Object [@dblink];
You also need assignment-related permissions when you create syno
Oracle Database SYNONYM (SYNONYM) Usage
This tutorial uses examples to illustrate how to create and delete Synonyms (SYNONYM) in Oracle Data ).
Concept
Synonyms refer to database objects (tables, views, sequences, stored procedures, and other database objects) referenced by another name. For example:
Creating a synonym
Tags: OCA must rom off system rtx syn change fromSynonyms: A synonym is an alias to another data object, the synonym is dependent on its target object, and the synonym becomes invalid if the target object is changed or deleted. Synonyms are not a substitute for the privileges of database objects, that is, the object with the schema is queried, executed, deleted,
It used to be that the synonym (synonym) in SQL Server was useless, so it never looked up its syntax format. Today, there is a problem, with synonym to solve the better. The problem is that I use multiple databases in my system, and because some of the data in each database needs to be synchronized, I add triggers to the tables in one of those databases to synchr
You can use multiple methods to back up synonyms. For example, you can use a script to generate a creation script for synonyms or use dbms_metadata.get_ddl to extract definition scripts for synonyms. However, when using the traditional exp or DataPump expdp for schema-level data migration, public synonyms cannot be exported. However, we can still use the Export and Import method. The difference is that we use the full = y method to export the synonym
1. Why use Synonyms:
Synonyms, as the name implies, mean that two words share the same meaning and can be replaced with each other. What are their functions:
A's most obvious goal is to simplify SQL. If the name of a database object is too long, you can create a shorter synonym, which is equivalent to the abbreviation.
B. another purpose is to hide the information of some objects. for example, to search for a table in another schema, you must add the
Oracle _ sequence, index, synonym, oracle SynonymZookeeper
1. Sequence1. sequence: database objects that can be used by multiple users to generate unique valuesUnique value automatically providedShared objectIt is mainly used to provide the primary key value.Loading Sequence values into memory improves access efficiency
2. create sequence statementCreate sequence sequence[Increment by n] -- the value of each increase[Start with n] -- START from[{MAXVA
Transferred from: Http://www.infoq.com/cn/articles/11devopsAbout the authorGene Kim is an award-winning player in multiple roles: CTO, researcher, and writer. He was the founder of Tripwire and was the CTO for 13 years. He has written two books, including "The Visible Ops Handbook", and is currently writing the Phoenix Project:a novel about IT, DevOps, and helping Your business Win "and" DevOps Cookbook ".
In this paper, according to the efficient operation and maintenance series Group of Friends to organize the contribution. The "Efficient operation and maintenance" public number as the official only public number of this series group, original and exclusive debut.Welcome to the "efficient operation and maintenance" of the public number, free to participate in the "Operation and Maintenance forum" Monthly offline communication activities, and the first surely dry full of all kinds of original art
This article is based on my "devops is a stage, not a specific state" speech at devopsdays in Sweden. If you are interested, you can watch my speech online, but you do not need to watch it before reading this article. Related
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Why DevOps
What is DevOps
The benefits of DevOps
How can DevOps be implemented?
Clarification on DevOps
Resources
Why DevOps
There is a growing awareness th
DevOps, a combination of development (development) and Operations (Operations), represents a culture, movement, or practice designed to facilitate the collaboration and communication between software developers (Dev) and IT operations Technicians (OPS) that deliver and change infrastructure. Its purpose is to build a culture and environment that makes building, testing, releasing software faster, more frequent and more reliable.Now that 2016 years of
Some time ago a colleague took over a task called DevOps, and today overheard another thing that became a chatops.Let's take a look at the two sides of the sacred.First, DevOpsDevOps (a combination of English development and operations) is a group of processes, methodologies, and systems that promote communication, collaboration, and integration between development (application/software engineering), technology operations, and QA departments. It comes
of software release, operation and maintenance, ThoughtWorks recommends building devops[3] capabilities in software organizations, thereby enhancing it integration across the organization and improving the quality and efficiency of the "last mile" of software delivery. Lay the groundwork for business agility.DevOps is a group of processes, technologies, and tools that promote communication, collaboration, and integration between development, technolo
Set synonyms for ease of use Select * from EMP; and so on are used for select * from ABC; Create a common synonymIf the user's level is not enough to establish a public synonym, You can authorize it under system: Grant create any synonym to Scott;Grant create public synonym to Scott; Cancel authorization: Revoke create any synoym from Scott;Revoke create public s
This article is from HPE and Msup co-hosted the technology Open Day HPE testing technology director Xiao Sharing, compiled by the one-Bai case.First, the meaning of DevOps analysisThis is the trend graph for devops. The concept of DevOps was probably introduced in 2009, and in 2010 Some companies started experimenting, followed by a continuous increase in
Learn about Linux, please refer to the book "Linux should Learn"The development of cloud computing over the past decade has provided new opportunities for the shared economy in the IT sector, and the rise of the mobile internet over the past five years has presented new challenges to it architecture in many ways. New challenges, new opportunities, and new vitality. For a time, new vocabulary such as Docker, MicroServices, DevOps, and lean research and
Original article: garnichaud
The latest trend in software development is the devops culture, that is, developers and operators work together to ensure that the software runs at the lowest failure rate.
Many organizations find that they are faced with the challenge of rapid release as cloud Web applications develop to respond to problems or requests from the user community in a timely manner. Responding to user requirements in a timely manner is the g
This is a creation in
Article, where the information may have evolved or changed.
"Editor's word" This share is introduced from DevOps, Docker Introduction, the benefits of DevOps based on Docker, and four aspects of Docker DevOps pipelining instance sharing.
Introduction to DevOpsDevOps (short for deveplopment and operations), translated into development operat
Docker's pace: DevOps and OS-basedGuideThe development of cloud computing over the past decade has provided new opportunities for the sharing economy in the IT field. The rise of mobile Internet over the past five years has posed new challenges to IT architecture in many aspects. New challenges, new opportunities, and new vigor. For a short time, new words such as Docker, microservices, DevOps, and lean R
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