classmate synonym

This is the employment situation of the Chengdu Intelligence Podcast Java Employment Class, please see the Chengdu Wisdom Podcast website for more details . : Http://cd.itcast.cn?140812ls name entry-level company Entry Salary (￥) Fang Classmate Ann * * Software Chengdu Co., Ltd. (Java) 6000.00 Classmate Lin Chuan * * United System Integratio

, display their information, not in the selected state. (You first click, will be in the selected state, but that is only button click Effect, you click the blank, the status of the selected disappeared) (2) Color monotonous, not very beautiful. (3) Layout needs to be adjusted, the information box is to render the information we need, should be as large as possible, the best display of the time can not need to hide the box. (4) For code, the JavaScript code from the zero-start bootstrap (2) i

the database, do not select EM installation, and then manually install EM after the database is rebuilt.Because it takes a long time to wait for the first method, the third method is selected. As a result, some problems are encountered during EM creation. In fact, there are still a lot of details about a simple job. You have spent a lot of time on it. First, you can use emca-config dbcontrol db-repos create to create EM in a 10 Gb environment. EM in 10g is relatively simple. If the creation fai

createRebuilding an EM DatabaseEmca-repos recreateDelete An EM DatabaseEmca-repos dropConfigure Database Control for the databaseEmca-config dbcontrol DBDelete Database Control Configuration of a DatabaseEmca-deconfig dbcontrol DBReconfigure the Database Control port. The default port is 1158.Emca-reconfig portsEmca-reconfig ports-dbcontrol_http_port 1160Emca-reconfig ports-agent_port 3940Set the oracle_sid environment variable and start the EM console service.Emctl start dbconsoleSet the oracl

user_tab_privs; // The table that grants permissions (granted permissions) 4. DBA users can operate any base table of all users (no authorization required, including deletion ):DBA User:SQL> Create Table stud02.product (ID number (10 ),Name varchar2 (20 ));SQL> drop table stud02.emp; SQL> Create Table stud02.employeeAsSelect * from Scott. EMP;5. Transfer object permissions (with grant option ):User01: SQL> grant select, update on product to user02 with grant option; // get the permission and pa

still a lot of details about a simple job. You have spent a lot of time on it. First, you can use emca-config dbcontrol db-repos create to create EM in a 10 Gb environment. EM in 10g is relatively simple. If the creation fails due to various reasons, it is very likely that the sysman user has not deleted the re-creation, and there are still some role and public synonym. Relatively speaking, these problems are well-regulated. Basically, the configurat

In Oracle's administrator's manual, you can establish synonyms for tables, views, materialized views, procedures, functions, packages, objects, and sequences. Although Oracle does not explicitly specify, it is also possible to create synonyms for synonyms. Sometimes it is meaningful to establish synonyms that point to synonyms. Since one of the functions of the synonym itself is to achieve transparency in both physical and physical locations, the use

(e.empno) count,avg (e.sal) AVG From EMP e,dept D WHERE E.deptno (+) =d.deptno GROUP by D.deptno,d.dname,d.loc; The information is now statistical, and it is impossible to update it at all. In a project, the number of views can be more than the number of tables because there are many query statements. Second, synonyms Synonyms are a group of words that are similar in meaning, and are used before the operation of synonyms, for example, there is now a query statement like this: SELECT sysdate fro

:.; Export PATH dbalist= "www.linuxidc.com,www.linuxidc.net"; export dbalist Sqlplus-s '/As Sysdba ' $ more Invalid_object.alert public all_wm_locked_tables synonym INVALID public all_wm_versioned_ tables SYNONYM INVALID public dba_wm_versioned_tables synonym INVALID public sdo_cart_text synonym INVALID public sd

I. What is the event mechanismExplanation: Something happened, and then something reacted to the matter.Example: Suppose that a classmate married, and then B to the money reaction, then, B is how to Know (listen) A event occurred, there are two ways.Scan: b keeps asking if a is going to get married.Binding: A should be married in time to inform B.II. implementation of the event in Yii frameworkYII uses the Observer pattern to implement the event mecha

. open cursors on the table are not affected .). 6. Create role Only the database creator has the permission to create a role and must set the data attribute Derby. database. sqlauthorization to true. Derby tries to avoid conflicts between database user names and role names. When a user name is the same as the role name, the user cannot connect to the database. The role name cannot start with sys or sys and cannot be the word public or public. VII. Create Schema Only the database creator has the

We all know that synonyms can be used in Oracle. The main function of synonyms is to hide the identity of the base table and reduce the complexity of SQL statements, because the user does not need to know which table is represented by the synonym, and thus does not need to specify the name of the table owner, what is a public synonym and what is a private synonym

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,

Index. -triggers Import table triggers. -allviews Import all views. The-views list imports a comma-separated list of views. -allprocs import all stored procedures. The-procs list imports comma-delimited lists of stored procedures. -allfuncs Import all functions. The-funcs list imports a comma-delimited list of functions. -allpackages Import all packages. The-packages list imports a comma-delimited list of packages. -allsequences import all the sequences. The-sequences list imports a comma-delim

re-modifying the SQL statement by using synonyms, thereby reducing system maintenance effort. 2. Create synonym A. Common synonym: Create public synonym synonym name for database object name; b. private synonym: Create synonym na

Function: two users, one of which has no data structure. User A can access all data of user B through user A. Only User A has the permission to read data and cannot see user B's data structure. User A can only query data. 1. Create read-only user: -- Create the userCreate userIdentified ""Default tablespace LMISTemporary tablespace LMISProfile DEFAULT; 2. grant corresponding permissions to Aas (executed under user B with DBA permission)Grant create session to;Grant create

transaction processing; otherwise, the transaction cannot be recovered. Example: drop index ix_user; 15. Create synonym for table-name Create a synonym name. Synonym: Synonymous name Table-Name: Table Name The creator of the database can use the synonymous name. Users without the synonymous name permission cannot use the synonymous name. The synonymou

synonym = alias of tableGrammar:CREATE [public] synonym synonym name for database object;Example One, -- user created with administrator or with the Create SYNONYM permission -- create synonyms for Scott CONN sys/ Change_ On_install as SYSDBA; create Synonym myemp fo

the cache.NoCache: The serial number is not pre-allocated for faster access, and if the cache and Nocache,orcale are ignored when the sequence is created, 20 serial numbers will be cached by default. To access the value of a sequence through a pseudo-column of a sequence Nextval returns the next value of the sequence Currval Returns the current value of the sequence 04.sys_guid function 1 --Create a sequence 2 Createsequence Seq_first3 --querying the next sequence 4 SelectSeq_first.nextval from

lot of people with a high degree of education, obviously have a clever brain, but the opposite to Beijing line jump track.What determines the people so different and the contrast, why some people will mix well, some people are not very good?Two or three mix of the best classmate experience, let me reflect on the cause of the gap between peopleThis year's Spring Festival home, was fortunate to participate in junior high school reunion. The party will