Oracle

SELECT * from user_views where view_name= ' v$session ';SELECT * from all_users where username like ' s% ';SELECT * from V$database;Select Username,profile from Dba_users;;SELECT * from Dba_profiles where profile= ' DEFAULT ';SELECT * from V$archive_

Learn to OrganizeOracle1, set linesize 100; Set length2, set pagesize 30; Set the number of displays per page3. Em A.sql Open Notepad4, @ A executes the code in file A, you can specify the path of the file @d:a.txt5, conn user name/password to

1. DAO pattern subcontracting: Set up sequentiallyEntity package, which is the property of the object that corresponds to the table structure in the Oracle database, that is, what is the objectDAO: Adding and deleting the interface, realizing the

Transfer from http://blog.itpub.net/12272958/viewspace-696834/Have always wanted to summarize Oracle memory tuning knowledge, recently just optimize a database memory parameters, find some data and Google a lot of. Now log it down and make a backup.

(i) in the process of using Oracle, we often encounter a number of Oracle errors, for beginners, these errors may be a little vague, and may not know how to handle the resulting errors, I use the more frequent error code one by one to make analysis,

http://blog.csdn.net/lucky_greenegg/article/details/47070565Transferred from: http://www.cnblogs.com/chay1227/archive/2013/03/17/2964020.htmlTransferred from: http://blog.csdn.net/allen879/article/details/40461227Transferred from:

ODBC imported and text imported in 1.plsql, you can select file import directly. Specific import operation details are not detailed. Large data volume import efficiency is not good;2.sql develop, select the target table, select "Import data" from

Chapter One Oracle Database Fundamentals1. About Oracle--database management system1.1: Database1.2: Global database name1.3: DB Instance1.4: Table Space1.5: Data file (extension:. dbf)1.6: Control file (extension:. ctl)1.7: Log file (extension:.

First of all, a few words, the company's computer with the VMWARE10 virtual machine I believe we are familiar with the VMware create shared Files feature can be directly installed tools to implement but Oracle VM Visualbox for the first time I don't

DescriptionThe Oracle import and export commands are mainly EXPDP and IMPDP, exp, and IMP, with the following differences: EXP and IMP are client tool programs that can be used either on the client or on the server side. EXPDP and IMPDP are

Oracle relational database system has been widely used for its excellent performance, and ensuring database security is an important part of database management work. On the basis of summarizing the security management of Oracle database, this paper

1.Training requirements 1) Master Plsql Programming 2) Master the stored procedures, Functions and Triggers 3) Learn some Oralcesql statement optimization scenarios-------------------------------------------------------------------------------------

(01) Select the most efficient table name sequence (written test)The parser for Oracle processes the table names in the FROM clause in a right-to-left order.The last table written in the FROM clause will be processed first,In cases where the FROM

Overall physical migration of Linux with platform databaseRequirement: A machine is no longer used, to migrate Oracle a machine to machine B.Previous articles on similar requirements: http://www.linuxidc.com/Linux/2015-05/117556.htmThe purpose of

Original: Introduction to the use of dual tables in Oracle[Introduction]dual is a virtual table that makes up the syntax rules for SELECT, and Oracle guarantees that there is always only one record in dual. We can use it to do a lot of things.Dual

650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M01/8C/16/wKiom1hhItLi-gZ4AABh8bZO-Vc870.png-wh_500x0-wm_3 -wmp_4-s_3809494292.png "title=" 1.png "alt=" Wkiom1hhitli-gz4aabh8bzo-vc870.png-wh_50 "/>Classification of functions===================

Recently, when working on a table, you need to sort by date, and the Date field has two formats.Format one: 07-aug-2015Format two: 10/28/16Date conversions and formatted SQL statements:SelectTo_date ('07-aug-2015','dd-mm-yyyy','nls_date_language =

Refer to the Backup blog post and uploaded files, conducted a hot and cold backup practice and documented for later review, the practice of the environment is WIN10, installed oracle11gOne, cold backup1, Cmd->sqlplus/nolog2, Conn sys/123456 as

I have written many posts related totriggersin Oracle Forms, I has given examples forForm level triggers, Data Block level triggers andItem level Triggers. And in this tutorial I am just Giving, the simple tutorial-to-Create a trigger in Oracle Form

How the Oracle command prompt appears as a user nameFor example: Sqlplus/as sysdba After the command prompt is sys>Fang Yi: Temporarily modify the sqlplus configuration variableSql> Show User--The output is the current user, take the SYS as an