Tags: ora authentication method Basic names Limited rect new spin privateFirst, synonym synonymConnect sys/123 as SYSDBA;SELECT * from EMP;ORA-00942: Table or view does not existCreate synonym emp for scott.emp;SELECT * from EMP; 1. DefinitionA synonym is an alias for a pattern object.Can be a table or view, sequence, PL/SQL program unit, user-defined object type
seen as an alias for an object, just like an alias for a command in the Liunx operating system. But the Linux command alias only provides the benefit of easy memory.1. In Oracle, synonyms can be used to:1) Simplify the SQL statements entered in Oracle, and by creating synonyms for objects, we can simplify complex SQL statements for easy memory and manipulation2) Hide the name and owner of the object, create synonyms for the object, such as the EMP table in Scott Mode (SCOTT,EMP), we create a
in the more complex Lucene search business scenario, it is not enough to download a word breaker directly on the web as a project. So how to assess a Chinese word breaker's good and bad: Generally speaking, there are two points, thesaurus and search efficiency, which is the algorithm. Lucene in the inverted table, different participle units have different Positionincrementattribute, if two words have the same positional attributes, For example: I define the United States and China these two wo
Oracle synonym + dblink Application
Oracle synonym + dblink Application
Business Requirements: original database (10.2.0.4.0), new database (11.2.0.3)Due to program requirements, you need to map a user in the new database to the user in the old database:
1. Users who back up the original databaseNohup exp scott/scott OWNER = scott BUFFER = 10240000 STATISTICS = none RESUMABLE = y FILE = scott_all_exp.dmp LO
OracleSynonymsOracle synonym for (synonyms) similar to view features, but more powerful. Most database objects in an Oracle database, such as tables, views, materialized views, sequences, functions, stored procedures, packages, synonyms, and so on, can be synonyms. There are 2 main purposes: to simplify object access and improve the security of object access .Here's a quick demo:Sql> Conn Scott/tigerConnected.Sql> CREATE TABLE test1 (ID number);Table
Today we implement a simple word breaker, just do the demo using the following functions:1, the participle according to the space, the horizontal bar, the point number to divide;2, the implementation of HI and hello synonym query function;3, to achieve hi and hello synonym highlighting;Myanalyzer Implementation code:public class Myanalyzer extends Analyzer {private int analyzertype;public myanalyzer (int ty
Hit the synonym of the word forest, should be the product of the last century, the word is relatively old, but at least can also use synonyms of the role of the word forest, with the Word2vec to obtain similar function comparison, the two play a comparative effect, see the specific application bar1.First download the TXT,CSDN with synonyms on the link: http://download.csdn.net/download/answerme11/73077712.The contents of the TXT are as follows: each l
Turn: WF Workflow technology insider-call Workflow workflows (develop persistent workflows) through Web Services, wfworkflow
Turn: http://www.cnblogs.com/carysun/archive/2009/01/11/receiveactivity.html
If you have been responsible for developing an enterprise ERP system or an OA system, workflow is no stranger to you. A Workf
Oracle synonym loop chain problem solution
[SQL] 1. First check whether there is a loop synonym: select * from dba_synonyms where table_owner = 'test' and synonym_name
When the company's production database is established, the user name used in the program is ABB, and all the tables belong to ABB. In this way, the permissions of ABB users are almost unlimited, he can drop any table. Another time a few days ago, the developer mistakenly dropped a table.
According to the original plan, the database was changed last week (because the HDD logic was damaged) and upgraded to 10 Gb by the way. therefore, during the upgrade, all objects under the abb user are moved t
----------------------------------------------------------Lucene participle _ Chinese participle introduction----------------------------------------------------------Paoding: Discovering word breaker. No updates have been madeMMSEG: Using Sogou's Thesaurus1. Import package (with two packages: 1. With DIC, 2. Without dic)If you use non-DIC, you have to specify the thesaurus location2. Create Mmseganalyzer (indicates where the thesaurus is located)-------------------------------------------------
Synonym: literally, it means an alias, which is similar to an attempt. Is a ing relationship.
(1. Create a synonym statement:
Create public synonym table_name for user. table_name;
The first table_name and the second table_name can be different.
In addition, to create a synonym for a table on a remote Database, you
The problem is that the synonym is invalid because it is queried by the table's synonym, and this table cannot be found, so the synonym is invalid.Analyze the reason, when we create synonyms, the system will not detect the existence of the original table. However, this error occurs when you manipulate the table with this synonym.Problem possibility:1. Whether the
Most customers have their own database servers to manage some of their key data. So what if we need to use this data in our project and the customer is not allowed to insert that data into our project database server? One solution is to create a synonym for some tables or views on the Project database server based on the customer's critical data server. Let me introduce the process I made in the project based on how the remote server view creates syno
The required information: Create a dblink from the MM Library to the GG Library
The username and password of the MM library are mmn and mmk.
The user name and password of the GG library are ggn and ggk.
Prerequisites: The MM database has the permission to establish dblink, And the hosts on both sides can be pinged.
Step 1:
First, query the global_name of the two databases.
Select * from global_name;
For example, the MM database is MMDB, And the GG database is GGDB.
Setp2:
Create dblink
-- Create
After two days, I checked n more materials and finally made them. I put them in the background and sent them again.ArticleDirectly copy and paste the words in the article and replace them with my invincible 17000 synonym library. Here we use the ACCESS database, which is basically invisible to Baidu and Google, true pseudo-originality!
Collect data tomorrow and replace it automatically after collection!
Public String dealword (string CNT) // pseudo
view_name from User_views;View the SELECT statement that created the viewSql>set view_name,text_length from User_views;Sql>set Long 2000; Description: The size of the set long can be set according to the Text_length value of the viewSql>select text from User_views where View_name=upper (' view_name ');6. SynonymsView the name of a synonymSql>select * from user_synonyms;SELECT * from all_sysnonyms;7. Constraint conditionsView constraints on a tableSql>select constraint_name, Constraint_type,sear
Oracle Database provides the synonym management function. Synonyms are aliases of database solution objects. They are often used to simplify object access and improve object access security.
Oracle Database provides the synonym management function. Synonyms are aliases of database solution objects. They are often used to simplify object access and improve object access security.
Oracle Database provide
Synonym and index in Oracle, oraclesynonym
Notes:
Oracle-Synonyms-- Use the user name (mode name). Table Name-- Authorization: grant create synonym to test1 (authorized by the system user ))-- PrivateCreate or replace synonym sy_test1 for gcs95.test1;-- TotalCreate public synonym public_sy_test1 for gcs95.test1;/* Priv
Google provides synonym search results to try natural language understanding Technology
Google's official blog today claims that it has used natural language understanding technology to identify synonyms in search. For example, Google search considers "pictures" and "Photos" to be the same in a certain context, taking the Query [pictures developed with coffee] as an example, we can see that the "Photos" in the search results has been bold. This is a
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