What is the use of materialised view in ORACLE

Hi All,
What is the use of Materialised view in ORACLE.Can anyone please help me out by giving a real time example in banking application (How MV is used in banking applications).
Thanks & Regards,
SB2013

SB2013 wrote:
What is the use of Materialised view in ORACLE.Can anyone please help me out by giving a real time example in banking application (How MV is used in banking applications).http://docs.oracle.com/cd/E11882_01/server.112/e25789/schemaob.htm#CNCPT411
Just add for example in a banking application at the end of each paragraph
E.g.
>
In data warehouses, you can use materialized views to compute and store data generated from aggregate functions such as sums and averages, for example in a banking application

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What is the use for CREATING VIEW WITH CHECK OPTION?

Dear Legends,
I have a doubt
What is the use for creating view?
A: First Data Integrity, Selecting Particular Columns..
What is the use for creating a view with check option?
A: As per oracle manual I read that its a referential integrity check through views.
A: Enforcing constraints at DB level.
A: using CHECK OPTION we can do INSERTS UPDATES for a view for those columns who have no constraints... is it right??
A: If we do a INSERT OR UPDATE for columns who have constraints it will show error... is it right???
Please clear my doubt's Legends
Lots of Thanks....
Regards,
Karthik

Hi, Karthick,
karthiksingh_dba wrote:
... What is the use for creating view?
A: First Data Integrity, Selecting Particular Columns..Most views are created and used for convenience. A view is a saved query. If the same operations are often done, then it can be very convenient to code those operations once, in a view, and refer to the view rather than explicitly doing those operations.
Sometimes, views are created and used for security reasons. For example, you many want to allow some users to see only certain rows or certain columns of a table.
Views are necessary for INSTEAD OF triggers.
What is the use for creating a view with check option?
A: As per oracle manual I read that its a referential integrity check through views.The reason is integrity, not necessarily referential integrity. The CHECK option applies only when DML is done through the view. It prohibits certain changes. For example, if a user can't see certain rows through a view, the CHECK option keeps the user from creating such rows.
A: Enforcing constraints at DB level.I'm not sure what you mean. Please give an example.
A: using CHECK OPTION we can do INSERTS UPDATES for a view for those columns who have no constraints... is it right??No. Using CHECK OPTION, you can do some inserts and updates, but not others. The columns involved may or may not have constraints in either case.
A: If we do a INSERT OR UPDATE for columns who have constraints it will show error... is it right???If you try to violate a constraint, you'll get an error. That happens in views with or without the CHECK OPTION, and also in tables.

What is the use of Streams Pool in oracle Architechture?

Dear All,
I am new to oracle, Could you please explain me what is the use of streams pool in oracle Architechture?
My Understanding :- ( As far as i know it is an optional memory buffer, used in distributed environment like multiple servers hosting a database, like RAC or GRID ) Please correct me if i am wrong.
Is the Streams pool a new feature in 10g or is it since earlier versions?
What is the importance of its in performance tunning?
Thank you,
yousuf

The Oracle documentation is available at tahiti.oracle.com
http://download.oracle.com/docs/cd/B14117_01/server.101/b10755/initparams209.htm
Edited by: Robert Geier on Jan 29, 2010 3:46 PM

What is the use of SYSAUX Tablespace in Oracle 10G

Dear Experts,
Please Tell me What is the use of SYSAUX Tablespace in Oracle 10G Because
during Web Load Testing It is going to increase countinuosly.Although i am not using this with any tables.
How Can I find out the what is gong on in this.
Can I Remove this tablesspace and other non using Schemas like FLOWS_020100,MDSYS,OUTLN,DIP and TSMSYS etc.

What is SYSAUX?
The SYSAUX tablespace provides storage of non-sys-related tables and indexes that traditionally were placed in the SYSTEM tablespace. For example, the tables and indexes that were previously owned by the system user can now be specified for a SYSAUX tablespace. Unfortunately, Oracle still places the SCOTT schema and the other demonstration schemas in the SYSTEM tablespace. Go figure.
The SYSAUX tablespace is specified with the CREATE DATABASE command. This is demonstrated in the example database creation script in Figure 1.1.
CREATE DATABASE test
MAXINSTANCES 1
MAXLOGHISTORY 1
MAXLOGFILES 5
MAXLOGMEMBERS 3
MAXDATAFILES 100
DATAFILE '/usr/oracle/OraHome1/oradata/aultdb1/test/system01.dbf' SIZE 300M REUSE AUTOEXTEND ON NEXT 10240K MAXSIZE UNLIMITED
EXTENT MANAGEMENT LOCAL
SYSAUX DATAFILE '/usr/oracle/OraHome1/oradata/aultdb1/test/sysaux01.dbf' SIZE 120M REUSE AUTOEXTEND ON NEXT 10240K MAXSIZE UNLIMITED
DEFAULT TEMPORARY TABLESPACE TEMP TEMPFILE '/usr/oracle/OraHome1/oradata/aultdb1/test/temp01.dbf' SIZE 20M REUSE AUTOEXTEND ON NEXT 640K MAXSIZE UNLIMITED EXTENT MANAGEMENT LOCAL
UNDO TABLESPACE "UNDOTBS1" DATAFILE '/usr/oracle/OraHome1/oradata/aultdb1/test/undotbs01.dbf' SIZE 200M REUSE AUTOEXTEND ON NEXT 5120K MAXSIZE UNLIMITED
CHARACTER SET WE8ISO8859P1
NATIONAL CHARACTER SET AL16UTF16
LOGFILE GROUP 1 ('/usr/oracle/OraHome1/oradata/aultdb1/test/redo01.log') SIZE 10240K,
GROUP 2 ('/usr/oracle/OraHome1/oradata/aultdb1/test/redo02.log') SIZE 10240K,
GROUP 3 ('/usr/oracle/OraHome1/oradata/aultdb1/test/redo03.log') SIZE 10240K
USER SYS IDENTIFIED BY "password" USER SYSTEM IDENTIFIED BY "password";
Oracle10g sysaux
With the new SYSAUX tablespace, Oracle comes closer to providing all the needed tablespaces for a truly OFA-compliant database right out of the box. With just one CREATE DATABASE command we can specify the SYSTEM tablespace, the TEMPORARY tablespace, the AUXSYS tablespace, the default UNDO tablespace, and the redo logs.
Of course, with the Oracle Managed Files option you can create an entire database with a single command, but the database created is not suitable for production use and is not OFA-compliant.
The SYSAUX tablespace is required in all new 10g databases. Only the SYSAUX tablespace datafile location is specified. Oracle specifies the remainder of the tablespace properties including:
online
permanent
read write
extent managment local
segment space management auto
If a datafile is specified for the SYSTEM tablespace, then one must be specified for the SYSAUX tablespace as well. If one is not specified, then the CREATE DATABASE command will fail. The only exception is for an Oracle Managed File system.
During any update of a database to Oracle Database 10g, a SYSAUX tablespace must be created or the upgrade will fail. The SYSAUX tablespace has the same security profile as the SYSTEM tablespace. However, loss of the SYSAUX tablespace will not result in a database crash, only the functional loss of the schemas it contains.
Can I drop SysAux?
DROP DATAFILE
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What is the use of Schedule Tab in Oracle BI Publisher

I am learning oracle bi publisher, here in the BI Publisher Enterprise screen , i got 3 tabs , 1) Reports 2) Schedules 3) Admin, here my Schedule tab is disabled..
What is the use of Schedule Tab ?
Edited by: joysaha123 on Mar 19, 2010 8:45 PM

Dont you think, this has to be posted in BI Publisher forum ?
If you had, this will get more visibility.
Neway, let me answer.
The reports can be scheduled for later, which can be monitored(download previously run report/re-run).

Want to know what is the use of system view

i want to know what is the usage of these types of views in mds (viw_SYSTEM_1_1_CHILDATTRIBUTES)
and what are the disadvantage of using them for exporting the data

These are system views and should be used or referenced in any downstream application

Why the every time Empty view is created. what is the use of Empty view?

Hai Experts,
                     im working on Web Dynpro ABAP i have doubt when ever we create the component One window and
                     one View created by default.but logicaly one empty view also created (not physically).
                     can u please explain me why the empty view is created what is the usde of it.
                       this is not a interview question .i searched the forums i cant get answer.
Thanks in adv.

hi ,
empty is not a mandatory thing in webdynpro component .. but to get the perfect picture about the importance and usage of this Empty views and Empty windows. * i suggest you to check the statefull stateless webdynpro componet and relate the same*
pl find the same in below URL:
[http://help.sap.com/saphelp_NW70EHP1core/helpdata/en/e0/202d4108f08739e10000000a1550b0/content.htm]
hope it helps you,
Regards,
Kranthi.

What is the use of Database View, maintenace , projection and Help view

hello friends,
I created tables..and set check table relation.
how to create Database View, maintenace , projection and Help view
phani

Hi,
have a look at this.
4 type of views
database
maintainance
help
projection view
check this link as well
(https://forums.sdn.sap.com/click.jspa?searchID=9904886&messageID=4885135)
Database views are implemented with an equivalent view on the database.
Projection views are used to hide fields of a table (only projection).
Database views should be created if want to select logically connected data from different tables simultaneously.
Database views implement an inner join.
Application programs can access the data of a database view using the database interface. (Just as we write select queries on database tables, we can write them for views as well.)
Includes in Database Views
An entire table can be included in a database view. In this case all the fields of the included table will become fields of the view (whereby you can explicitly exclude certain fields).
To include one of the tables in the view, enter character * in field View field, the name of the table to be included in field Table and character * again in field Field name on the View fields tab page of the maintenance screen of the view.
You can also exclude individual fields of an included table. If you do not want to include a field of the included table in the view, enter - in field View field, the name of the included table in field Table and the name of the field to be excluded in field Field name.
Inserts with Database Views
If a database view contains only one single table, data can be inserted in this table with the view .
You have the following options for the contents of the table fields not contained in the view:
If the field is defined on the database with NOT NULL as initial value, the field is filled with the corresponding initial value.
If the field is defined on the database as NOT NULL without initial value, an insert is not possible. This results in a database error.
If the field is not defined on the database as NOT NULL, there will be a NULL value in this field.
A maintenance view permits you to maintain the data of an application object together.
The maintenance status determines which accesses to the data of the underlying tables are possible with the maintenance view.
Read only: Data can only be read through the view.
Read, change, delete, insert: Data of the tables contained in the view can be
changed, deleted, and inserted through the view.
Read and change: Existing view entries can be changed. However, records
cannot be deleted or inserted.
Read and change (time-dependent views): Only entries whose non-time
dependent part of the key is the same as that of existing entries may be
inserted.
Maintenance View ( SE54 )
You can use a maintenance view to maintain data, which is distributed over several tables, at the same time.
Maintenance views enable a business-oriented approach to looking at data, while at the same time, making it possible to maintain the data involved. Data from several tables can be summarized in a maintenance view and maintained collectively via this view. That is, the data is entered via the view and then distributed to the underlying tables by the system.
Creating maintenance View:
http://help.sap.com/saphelp_nw2004s/helpdata/en/cf/21ecdf446011d189700000e8322d00/frameset.htm
regards,
vipul

What is the use of valuation view?

hi ,
could you brief me about valuation view and its purpose?
regards

valuation view
Controlling (CO)
A particular vantage point from which you can valuate your business transactions - that of an individual company, of the group as a whole, or of a profit center within the organization.
In the context of multiple valuation and transfer prices, you can define the following views:
Legal view
Group view
Profit center view
Together with a currency type and a currency, the valuation view creates what is called a valuation approach.
For details goto http://victorko.com/portfolio/sap_stp/glossary/glos_v.htm

What is the difference between materialised view and normal view?

please expalin the difference in detail with an example.
thanks.

Hi User,
Welcome to Forum !!!!
Materialized view is nothing but a database Object similar to Tables,Indexes,Procedures etc.
It contains the results of a query.
The materialized view is refreshed when the query is executed. And are refreshed on demand
Unlike Views, it contain data.
It does not contain real-time data.
Materialized view are called Snapshot(In Older Versions of Oracle).
Thanks,
Shankar

What is the use of split valuation Accounting view

Hi
What is the use of split valuation Accounting view.is it compulsary to give for every materisl?
regards
Ashok

Hii Ashok,
The SAP R/3 System allows you to valuate stocks of a material either together or separately, that is, according to different valuation criteria. Split valuation is necessary if, for example:
1. Stock from in-house production has a different valuation price than externally procured stock.
2. Stock obtained from one manufacturer is valuated at a different price than stock obtained from another manufacturer.
3. Different batch stocks of a material have different valuation prices.
4. Value damaged and repair part differently from a new part.
To used split valuation, you have to activate it using 'OMW0'.
To change split material valuation once it has been set, you must
1. first post out all stocks (for example, to a cost center or with movement type 562)
2. then change the control parameters
3. if necessary, change the automatic account determination
4. finally post the stocks back in again
In split valuation, you can distinguish between partial stocks of a material according to certain criteria and valuate them separately.
The material stock is divided according to valuation category and valuation type.
The valuation category determines how the partial stocks are divided, that is, according to which criteria.
The valuation type describes the characteristics of the individual stocks.
With the function "Setting" you can determine:
which valuation categories exist in your company (global categories)
which valuation types exist in your company (global types)
which valuation types belong to which valuation category
which valuation categories exist in a valuation area (local categories)
Your entries are only relevant if you set split valuation as active in the function "Global settings".
In the standard SAP R/3 System, the following valuation categories are default settings :
B procurement type
with the valuation types:
"EIGEN" for in-house production
"FREMD" for external procurement
H Origin
X automatic valuation (only for batch)
To select split valuation ('OMWC'), proceed as follows:
1. Determine the valuation categories and valuation types that are allowed for all valuation areas:
global valuation categories via menu "Goto --> Global Categories"
global valuation types via menu "Goto --> Global Types"
2. Allocate the valuation types to the valuation categories.
a) Select "Goto --> Global Categories".
b) Position the cursor on a valuation category and select
"Goto --> Global Categories --> Assignments --> 'Types->Category'".
c) Activate the valuation types you want.
3. Determine the local valuation categories for each valuation area.
a) Select "Goto --> Local definitions".
b) Position the cursor on a valuation area and select
"Goto --> Local Definitions --> Allocate Categoires->Org.units (button Cats->(OU)".
You obtain a list of the global valuation categories.
c) Activate the categories to be used in this valuation area.
The system creates the local valuation types based on the allocations under point 2.
Only now can you create a master record with split valuation.
Regards,
Kumar

What is the diffrence between SAP View and CAD View ?

What is the diffrence between SAP View and CAD View ?
What is the main purpose of SAP View
and
What is the main purpose of CAD View
On SAP help i found
SAP View is used for :The SAP view displays the SAP structure (document-based structure) for the active CAD object, or another document info record (header document), with a single-level or multilevel document structure in a tree structure. You can variably configure the fields using the layout editor.
CAD View is used for :The CAD view displays the document-based structure of the currently active CAD object, such as the structure of an assembly. The CAD system determines the complete (multilevel) structure and copies it either completely or in stages to the SAP system, in accordance with the default explosion level.
BUT I did not understand it well
Can someone explain this with an example
THanks
Raj

Hello Raj,
SAP View can be further described as the view that is based on what is existing already in the SAP system. This view is generally used by SAP purchasing, MM people etc
CAD view is nothing but the replication of the model tree view in the SAP system. This is used by the design engineer and this view replicates only the parts that are actively displayed on the CAD tool window.
hope this helps. Let me know if you have further questions else please close the message.
regards
N K

What is the replacement for design view in in flex builder 4.7 for cs extension builder?

Because design view is not available in flash builder than what is the use of extension builder in UI designing now we have to do design UI with xml which is very time consuming and boring if there is any replacemnt for it than please help me .1 more thing i want to know is that when i make new default project in extension builder(flash builder 4.6) than it also not able to load design mode errror is
C:\Program Files\Adobe\Adobe Flash Builder 4.6\eclipse\plugins\com.adobe.cside.libsinstaller_2.0.0.4-33034\archive\cslibs\2.0\4.5\re lease\apedelta.swc- not respondingSWC file failed to load. Any component dependent on this SWC file will not be displayed in the Design Mode.The SWC may have failed to load because of:
* Incompatible definitions caused by usage of a different SDK version
* Missing referred class definitions

I have researched this quite considerably and my understanding is that Adobe have no intention of supporting Design View any more for Extension Builder. In my opinion a very disappointing decision and one that is hard to comprehend.
The best workaround I can find is to create the majority of your design in a parallel, non Extension Builder, project and then convert/import your design into your Extension. This is by no means as satisfactory as having Design View for the Extension you are writing but it is better than simply creating your layout by guess work/trial and error.
Although this has not been announced by Adobe, I have a suspicion that the reason they have decided not to put any further resources into fixing Design View is that Extension Builder as we know it is going to be abandoned soon, probably replaced with an HTML5/JavaScript method of building extensions. My concern with this is that, other than wanting reassurances that there will be backward compatibility support for old extensions, There will not be a way of compiling an extension in a way that prevents people from seeing your code.
This is all speculation and I guess we will have to wait and see what happens. Hope this has helped.

What are the uses of portal

Hi,
Iam new to Enterprise portal.
Can anybody tel me what are the uses of portal
correct me if iam wrong " EP can be used from anywhere where the internet conncetion is available and anybody who is authorised to view the content"
Thanks in advance
SAI

Hi,
Your statement is correct. To be crisp, the portal offers a single point of access to SAP and non-SAP information sources, enterprise applications, information repositories, databases and services in and outside your organizationall integrated into a single user experience. It provides you the tools to manage this knowledge, to analyze and interrelate it, and to share and collaborate on the basis of it.
With its role-based content, and personalization features, the portal enables usersfrom employees and customers to partners and suppliersto focus exclusively on data relevant to daily decision-making processes
To read more visit,
http://help.sap.com/saphelp_nw04/helpdata/en/a9/76bd3b57743b09e10000000a11402f/frameset.htm
Regards
Srinivasan T

What is the use of change pointer concept in ale?

what is the use of change pointer concept in ale?
Edited by: Alvaro Tejada Galindo on Feb 6, 2008 5:10 PM

ALE Architecture:
It consists of an Outbound process, an Inbound process, and an Exception Handling process.
Outbound Process:
ALE Outbound Process in SAP sends data to one or more SAP Systems. It involves four steps.
1. Identify the need of IDoc: This step starts upon creating a application document, can relate to a change to a master data object.
2. Generate the Master IDoc: The document or master data to be sent is read from the database and formatted into an IDoc format. This IDoc is called as a Master IDoc.
3. Generate the Communication IDoc: The ALE Service layer generates a separate IDoc from the Master IDoc for each recipient who is interested in the data. Separate IDocs are generated because each recipient might demand a different version or a subset of the Master IDoc. These recipient-specific IDocs are called Communication IDocs and are stored in the database.
4. Deliver the Communication IDoc: The IDoc is delivered to the recipients using an asynchronous communication method. This allows the sending system to continue its processing without having to wait for the destination system to receiver or process the IDoc.
Inbound Process:
The inbound process receives an IDoc and creates a document in the system.
1. Store the IDoc in the database: The IDoc is received from the sending system and stored in the database. Then the IDoc goes through a basic integrity check and syntax check.
2. Invoke the Posting Module: The control information in the IDoc and configuration tables are read to determine the posting program. The IDoc is then transferred to its posting program.
3. Create the Document: The posting program reads the IDoc data and then creates a document in the system. The results are logged in the IDoc.
Over view of IDocs:
IDoc is a container that is used to exchange data between any two processes. The document represented in an IDoc is independent of the complex structure SAP uses to store application data. This type of flexibility enables SAP to rearrange its internal structure without affecting the existing interface.
IDoc interface represents an IDoc Type or IDoc data. IDoc Type represents IDocs definition and IDoc Data is an instance of the IDoc Type.
IDoc Types:
IDoc type structure can consist of several segments, and each segment can consist of several data fields. The IDoc structure defines the syntax of the data by specifying a list of permitted segments and arrangement of the segments. Segments define a set of fields and their format.
An IDoc is an instance of an IDoc Type and consists of three types of records.
i. One Control record: each IDoc has only one control record. The control record contains all the control information about an IDoc, including the IDoc number, the sender and recipient information, and information such as the message type it represents and IDoc type. The control record structure is same for all IDocs.
ii. One or Many Data records: An IDoc can have multiple data records, as defined by the IDoc structure. Segments translate into data records, which store application data, such as purchase order header information and purchase order detail lines.
iii. One or Many Status records: An IDoc can have multiple status records. Status record helps to determine whether an IDoc has any error.
Message in IDoc Type:
A Message represents a specific type of document transmitted between two partners.
Outbound Process in IDocs:
Outbound process used the following components to generate an IDoc. A customer model, and IDoc structure, selection programs, filter objects, conversion rules, a port definition, an RFC destination, a partner profile, service programs, and configuration tables.
The Customer Model:
A customer model is used to model a distribution scenario. In a customer model, you identify the systems involved in a distribution scenario and the message exchanged between the systems.
Message control:
Message control is a cross application technology used in pricing, account determination, material determination, and output determination. The output determination technique of Message control triggers the ALE for a business document. Message control separates the logic of generating IDocs from the application logic.
Change Pointers:
The change pointers technique is based on the change document technique, which tracks changes made to key documents in SAP, such as the material master, customer master and sales order.
Changes made to a document are recorded in the change document header table CDHDR, and additional change pointers are written in the BDCP table for the changes relevant to ALE.
IDoc Structure:
A message is defined for data that is exchanged between two systems. The message type is based on one or more IDoc structures.
Selection Program:
Is typically implemented as function modules, are designed to extract application data and create a master IDoc. A selection program exists for each message type. A selection programs design depends on the triggering mechanism used in the process.
Filter Objects;
Filter Objects remove unwanted data for each recipient of the data basing on the recipients requirement.
Port Definition:
A port is used in an outbound process to define the medium in which documents are transferred to the destination system. ALE used a Transactional RFC port, which transfers data in memory buffers.
RFC Destination:
The RFC destination is a logical name used to define the characteristics of a communication link to a remote system on which a function needs to be executed.
Partner Profile:
A partner profile specifies the components used in an outbound process(logical name of the remote SAP system, IDoc Type, message type, TRFC port), an IDocs packet size, the mode in which the process sends an IDoc (batch versus immediate), and the person to be notified in case of error.
Service Programs and Configuration Tables:
The outbound process, being asynchronous, is essentially a sequence of several processes that work together. SAP provides service programs and configuration tables to link these programs and provide customizing options for an outbound process.
Creation of IDoc:
Basic Type:
Basic IDoc type defines the structure and format of the business document that is to be exchanged between two systems.
Segments:
Segments form the basic building blocks of an IDoc type and are used to store the actual datta. A segment type is the name of a segment and is independent of the SAP elease. A segment definition is the release-specific name of a segment.
Steps in creating Segments:
T.Code WE31
Enter the name for your segment type and click on the create icon.
Type the Short text.
Enter the variable names and data elements.
Save and Go back.
Go to Edit -> Set Release.
Repeat the steps to create more segments.
IDOC TYPE:
Business data is exchanged with an external system using the IDoc Interface.
IDoc types (Special Structures) An IDoc type is defined through its permitted segments. Segments can be dependent on each other (parent and child segments). The IDoc interface can check for each IDoc whether thhe segments contained are compatible with thhe definitiion of its type. This systax check is activated or deactivated in the Partner Profiles.
Steps in creating IDoc Type:
T.Code WE30 to create IDoc Type.
Enter the Object Name, Select Basic Type and click Create Icon
Select the create new option and enter a description for your basic IDOC type and press enter
Select the IDoc name and click Create icon
The system prompts us to enter a segment type and its attributes
Choose the appropriate values and press enter
The system transfers the name of the segment type to the IDoc editor.
Follow these steps to add more number of segments to Parent or as Parent-child relation.
Save it and go back.
Go to Edit -> Set Release.
Message Type:
Steps in Creating Message Type:
T.Code WE81.
change the details from Display mode to Change mode
After selection, the system will give this message "The table is cross client (See help for further info)". Press enter.
Click New Entries to create new Message Type.
Fill details
Save it and go back.
Assign Message Type to IDoc Type:
T.Code WE82
Change the details from Display mode to change mode.
After selection, the system will give this message "The table is cross client (See help for further info)". Press enter.
Click New Entries to create new Message Type.
Fill details
Save it and go back.
<REMOVED BY MODERATOR>
Edited by: Alvaro Tejada Galindo on Feb 6, 2008 5:10 PM

What is the use of materialised view in ORACLE

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