programmatic synonym

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

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

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

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

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

Comprehensive analysis of Spring's programmatic transaction management and declarative transaction managementBefore you start about this tutorialThis tutorial will delve into Spring's simple and powerful transaction management capabilities, including programmatic and declarative transactions. By learning this tutorial, you will be able to understand the nature of Spring transaction management and use it fle

This tutorial will delve into Spring's simple and powerful transaction management capabilities, including programmatic and declarative transactions. By learning this tutorial, you will be able to understand the nature of Spring transaction management and use it flexibly.PrerequisiteThis tutorial assumes that you have mastered the basics of Java and have some knowledge of Spring. You also need to have basic knowledge of transaction management, such as

This article is reproduced in my other blog "http://blog.csdn.net/liaohaojian/article/details/70139151"1. The previous article explained the propagation level and isolation level of spring transactions, as well as the simple configuration of distributed transactions .Click Back to view article2. Programmatic transactions: Encoding for Transaction management (code demo for JDBC Transaction management)Spring implements

Set synonyms to facilitate the use of select * fromemp; and so on for select * fromabc; create a common synonym if the user level is not enough to create a public synonym, you can Set synonyms to make it easy to use select * from emp; and so on for select * from abc; create a common synonym. If the user level is insufficient, create a public

Spring's transaction management is divided into: declarative transactions and programmatic transactions Spring on transaction management is usually divided into three parts: DataSource, TransactionManager and agent mechanism of the three parts, regardless of which configuration, the general change is only the agent mechanism this part. 1.spring Data Source Configuration* Method 1: Configure the data source directly in spring's configuration file (Appl

Set synonyms for ease of useSelect * 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 synoym

Analysis of OCP question _ 007: synonym synonyms are the alias of the base table. They are defined only in the data dictionary. They do not store synonyms. They provide location transparency for distributed databases. Accessing resources in different regions is just like accessing local resources. www.2cto.com (I) Syntax:Private synonyms without public are the synonyms created by common users. They are private, this is because only the user who create

Programmatic transaction ManagementBy injecting the transactiontemplate template provided by the spring framework into the business layer for transaction management, there is too much modification to the original code of the business layer. Not conducive to the late maintenance of the project.The following are specific code implementations of declarative transaction management:Environment Construction : http://www.cnblogs.com/kuoAT/p/7803193.htmlDAO l

Synonyms are the aliases of the base table. They are defined only in the data dictionary and are not stored. Synonyms provide location transparency for distributed databases, and there is no difference in accessing resources in different regions like accessing local resources. (I) syntax Syntax for creating Synonyms: Private synonyms without publicA private synonym is a synonym created by a common user

The following are organized from Oracle's official documentationA conceptA synonym is an alias for any table, view,materialized view, sequence, procedure, function, package, type, Java Classschem A object, User-defined object type, or another synonym. Because a synonymis simply an alias, it requires no storage other than its definition in Thedata dictionary.Synonyms in Oracle are aliases for any table, view

Vue. js programmatic route navigation and vue. js Route Navigation Programmatic Route Navigation Defines a method in the instance. This method is bound to the tag. Then set route jump Syntax: this. $ router. history. push ('route to jump address ') If the article is helpful to you, please click the recommendation on the right to pay attention to Kazakhstan, O (∩ _ ∩) O Thank you ~ >>>>

IndexAd click-through rate estimation is a very important component of the programmatic AD trading framework, and the CTR is estimated to have two levels of indicators:1. Sort the indicator. The sort indicator is the most basic indicator, it determines whether we have the ability to find the most suitable ads to show to the most appropriate users. This is the basis for monetization, and technically, we measure it with the AUC.2. Numerical indicators.