iot synonyms

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 from scott;Cancel synonym:Drop public synonym abc;Synonym for canceling authorization:Gra

Tags: style blog color sp for div on log bs1: To SYSDBA login system, first create a userSql> Conn/assysdbaconnected.sql> Create user yshy identified by yshy; User created. SQL> grant connect to Yshy; Grant succeeded. SQL> grant resource to yshy; Grant succeeded. SQL> grant create synonym to Yshy; Grant succeeded. SQL2: Switch to yshy user and create synonyms for scott.empSql> Conn yshy/yshyconnected.sql for scott.emp; Synonym created.3: query synonym

Database linkThe primary role of Dblink is data access between two databasesCreate DATABASE link My_test connect to testdbname identified by TestpassUsing ' (DESCRIPTION =(ADDRESS = (PROTOCOL = TCP) (HOST = dev) (PORT = 1521))(Connect_data =(SERVER = dedicated)(service_name = Ora8)))‘;My_test:dblink's name.Testdbname: The user name of the database to connect toTestpass: The password of the database to connect toUsing the following information: locally established TNS connected to the remote data

Iot framework ServerSuperIO tutorial-19. device drivers and OPC Client Support persistence of mysql, oracle, sqlite, and sqlserver. V3.6.4 released, sqlite persistent 19. The device driver and OPC Client Support persistence of mysql, oracle, sqlite, and sqlserver. 19.1 Overview ServerSuperIO supports writing data collected by device drivers and OPC clients to mysql, oracle, SQL Server, and sqlite databases by TAG set. It also supports writing data to

. getPositionIncrement ();If (termIncr> 0 ){TermPos + = termIncr;}For (I = (charBuf. length-1); I> = 0; I --){If (charBuf [I]> 0 ){Len = I + 1;Break;}}// Term = new String (charBuf, offsetAttr. startOffset (), offsetAttr. endOffset ());Term = new String (charBuf, 0, offsetAttr. endOffset ()-offsetAttr. startOffset ());System. out. print ("[" + term + ":" + termPos + "/" + termIncr + ":" +TypeAttr. type () + ";" + offsetAttr. startOffset () + "-" + offsetAttr. endOffset () + "]");}} Catch (IOExce

Oracle Database Synonyms I. Definition A synonym is an alias for a database solution object. The database solution objects here refer to tables, views, sequences, stored procedures, packages, and so on. 2. Benefits of synonyms 1. No memory space occupied, saving a lot of database space 2. simplified access to database objects 3. Improved Database Object Access Security 4. the extended scope of use of datab

Oracle Database Synonyms (SYNONYM), oraclesynonym 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 can exclude the restriction of an

Both views and synonyms are the object names in the database. They do not correspond to actual data storage and all depend on the existence of other objects.View: A view can be viewed as a virtual table or storage query. Unless it is an index view, the data in the view will not be stored in the database as non-duplicate objects. Generally, a view is built based on one or more data tables that are queried by a data query statement. A view can be used i

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I. BACKGROUND There are two sid:asid,bsid, two user auser1,auser2 under Asid, and a user Buser1 under Bsid. Among them Auser2 and Buser1 established the Dblink. You now want to access the three tables Table1,table2,table3 information and function function1 on Auser1 by logging on to Buser1. Second, the steps ① login Auser1 to Auser2 authorization (plus delete if you need to delete) Grant Insert,select,update on Table1 to Auser2; Grant Insert,select,update on table2 to Auser2; Grant Insert,

In the Word2013 document, users can use the Thesaurus feature to find synonyms and antonyms for known English words, which are described in the following steps: Step 1th, open the Word2013 document window and switch to the Review tab. Select the English word and click the Thesaurus button in the proofing area, as shown in Figure 2013080722. Figure 2013080722 Click the Thesaurus button In the 2nd step, words that are similar in meaning to the sele

I. Related content1. Understand the concepts and types of indexes.2. Master the command to create the index.3. Understand the concepts and advantages of the view.4. Understand the features that updatable views should have.5. Master commands for creating general views and updatable views.6. Understand the concepts and roles of sequences and synonyms.7. Mastering the creation and application of sequences.8. Understand the creation and application of syn