oracle adf training

The training content developed for the optimization, backup, and restoration technologies related to Oracle databases will involve the following content. Oracle Optimization 1. Oracle optimizer based on cost and rules and how to select Oracle optimizer 2. Statistical da

Production Application win Platform Oracle+websphere project implementation _websphere Video Training tutorialBasic part:Oracle Basic Concepts and architectureWebSphere related concepts, profiles, data sources, connection pools, consoles.Actual Combat part:Virtual machine configuration, Windows Host environment installation, Oracle database installation,

administration users: Grant Connect,resource, dba authority.3.3 Entity permissions: Grant orders for Entity permissionsThe syntax is as follows: GRANT Entity permission name | All to user | roles | Public, where all represents all entity permissions for the entity.such as: Sql>grant SELECT on books_quthors to USER1; Authorization information to query entity permissions for a table: Sql>select * from User_tab_prives Reclaim entity permissions, using revoke, with the following sy

today in the Knife Training Forum inexplicable was a call Guo Teacher (Forum ID joeyguo) Low-quality people scold have chat for evidence, everyone later don't believe this person, do not report this silly Boethius Oracle training such low-quality people when teachers really will fraught,first, declare that I called him because he called me first.If a teacher does

2018-07-12 14:44:27Iv. Index1. Create an indexCreate manually:Create index index name on table name (column name, [column name, ...] ）CREATE TABLE Employee (Pno Number (7),PName VARCHAR2 (20));CREATE index Inx_scott_pno on employee (pno);INSERT into employee select Empno,ename from EMP;SELECT *From employeewhere pno=7788;---inserting data recursivelyINSERT INTO employee SELECT * from employee;Update employee Set pno = rownum;Function Index:CREATE index Inx_scott_pname on employee (upper (ename))

the associated data will make 10 requests to the database (in fact, these 10 requests are very fast first is the database connection pool The second is the above SQL execution mechanism is directly run will not perform hard parsing because these 10 SQL is consistent)8. Avoid using SELECT * * will cause Oracle to parse which columns in this table are not directly taken. * will result in data transfer the best need what to take whatSummary: The above o

Rest a day, finally can catch breath, usually teacher teach very good but progress also pretty fast, a wandering almost can't keep up with, so Sunday rest basically also can only use to sleep 23333 ....This week, I told you something new, a Web-console command, and I learned how to read the form,Reference graph:Here are some ways to share the practice (Secret welfare Oh ~ ~) It takes time to digest .....Participate in the fifth day of training for the

Tags: exam mysq third day inf rom jpg alt src imgThis time I'm going to write it down! November 4, the first exam, the content of the exam is about the MySQL query command, the test of a morning, took the question to a face, not kidding, I thought the problem will be very simple! The result is I think too much .... Give some examples: Identify all people with the same native origin as "Qin Yi" (Qin Yi: MMP) SELECT * from Stu where jg= (select JG from Stu where name= "Qin Yi"); Find out the dep

commit" is modified to "one line". 14, P112 "Maxvle" modified to "Maxvale". 15, P125 in the last paragraph after the execution of "commit;". 16, P127 in the last paragraph of the plsql, the "999" before the space is removed. 17, P129 will "if the client takes a shared server connection, the directory where the trace files are stored is changed to" private "by" sharing "in the parameter User_dump_dest decision. 18, P150 in the top code, the "Time_num" before the space is removed. 19, P152 the se

)=UPPER('name'); + - $ Declare $V_namevarchar2( -); -V_sal Number(7,2); - begin the SelectEname,sal intoV_name,v_sal fromEmpwhereEmpno=No; -Dbms_output.put_line (v_name||','||v_sal);Wuyi Exception the whenNo_data_found Then -Dbms_output.put_line ('Sorry, the user you entered does not exist'); Wu End; - About ---%type: Use data type of a column in a database as the data type of a variable $syntax; table name. Column Name%type - - Declare -V_name Emp.ename%type; AV_sal Emp.sal%type; +