Difference between all views in data dic

hi all,
can any body tell me the diff between all views
projection view ,database view,maintance view,help view
plz tell me the difference with a example
hope for positive reponse

A view is a logical view on one or more tables, that is, a view is not actually physically stored, instead being derived from one or more other tables.
In the simplest case, this derivation process can involve simply suppressing the display of one or more fields from a table (projection) or transferring only certain records from a table to the view (selection). More complicated views can be assembled from several tables, with individual tables being linked using the relational join operation.
Use
Logical views for the application permitting direct access to the data can be generated with the definition of view. The structure of such a view is defined by specifying the tables and fields involved in the view.
Maintenance Views 
Maintenance views offer easy ways to maintain complex application objects.
Data distributed on several tables often forms a logical unit, for example an application object, for the user. You want to be able to display, modify and create the data of such an application object together. Normally the user is not interested in the technical implementation of the application object, that is in the distribution of the data on several tables.
A maintenance view permits you to maintain the data of an application object together. The data is automatically distributed in the underlying database tables. The maintenance status determines which accesses to the data of the underlying tables are possible with the maintenance view.
Database Views 
Data about an application object is often distributed on several database tables. A database view provides an application-specific view on such distributed data.
Database views are defined in the ABAP Dictionary. A database view is automatically created in the underlying database when it is activated.
Application programs can access the data of a database view using the database interface. You can access the data in ABAP programs with both OPEN SQL and NATIVE SQL. However, the data is actually selected in the database. Since the join operation is executed in the database in this case, you can minimize the number of database accesses in this way. Database views implement an inner join
Projection Views 
Projection views are used to hide fields of a table. This can minimize interfaces; for example when you access the database, you only read and write the field contents actually needed.
A projection view contains exactly one table. You cannot define selection conditions for projection views.
There is no corresponding object in the database for a projection view. The R/3 System maps the access to a projection view to the corresponding access to its base table. You can also access pooled tables and cluster tables with a projection view.
Help Views 
You have to create a help view if a view with outer join is needed as selection method of a search help.
The selection method of a search help is either a table or a view. If you have to select data from several tables for the search help, you should generally use a database view as selection method. However, a database view always implements an inner join. If you need a view with outer join for the data selection, you have to use a help view as selection method.
Regards,
Pavan

Similar Messages

Diff between all views

hi all,
can any body tell me the diff between all views
projection view ,database view,maintance view,help view
plz tell me the difference with a example
hope for positive reponse

Maintenance views offer easy ways to maintain complex application objects.
Data distributed on several tables often forms a logical unit, for example an application object, for the user. You want to be able to display, modify and create the data of such an application object together. Normally the user is not interested in the technical implementation of the application object, that is in the distribution of the data on several tables.
A maintenance view permits you to maintain the data of an application object together. The data is automatically distributed in the underlying database tables. The maintenance status determines which accesses to the data of the underlying tables are possible with the maintenance view.
database view
Data about an application object is often distributed on several database tables. A database view provides an application-specific view on such distributed data.
Database views are defined in the ABAP Dictionary. A database view is automatically created in the underlying database when it is activated.
Application programs can access the data of a database view using the database interface. You can access the data in ABAP programs with both OPEN SQL and NATIVE SQL. However, the data is actually selected in the database. Since the join operation is executed in the database in this case, you can minimize the number of database accesses in this way. Database views implement an inner join
projection view
Projection views are used to hide fields of a table. This can minimize interfaces; for example when you access the database, you only read and write the field contents actually needed.
A projection view contains exactly one table. You cannot define selection conditions for projection views.
There is no corresponding object in the database for a projection view. The R/3 System maps the access to a projection view to the corresponding access to its base table. You can also access pooled tables and cluster tables with a projection view.
help views
Help views are used if a view with an outer join is needed as selection method in a search help.
You have to create a help view if a view with outer join is needed as selection method of a search help.
The selection method of a search help is either a table or a view. If you have to select data from several tables for the search help, you should generally use a database view as selection method. However, a database view always implements an inner join. If you need a view with outer join for the data selection, you have to use a help view as selection method.

Difference between Database view and Table

Hi there,
Can anyone tell me the difference between Database view and Table.
Will the Database view query be more faster than a database table?

Tables and database views can be defined in the ABAP Dictionary.
These objects are created in the underlying database with this definition. Changes in the definition of a table or database view are also automatically made in the database.
Data from several tables can be combined in a meaningful way using a view (join).
You can also hide information that is of no interest to you (projection) or only display
those data records that satisfy certain conditions (selection).
Database views implement an inner join. You only get those records which have an
entry in all the tables included in the view.
in views db modifications are not possible
views only contain data at run time
when they consult the database
in case of views the join definitions are already sstored in the database itself
whereas join as open sql is a query to oracle database as similar select statements
Views are optimized by SAP and stored in the repository while Joins
are in reports that needs to be compiled at every execution
Reward if helps
Regards,
Senthil
Message was edited by: senthil kumar

Difference between saved views & workbooks

Hello,
I still cannot see what is the technical difference between a view and a workbook. When is one used over the other? Both contains saved results.
Pls could help enlighten.
regards,
Pascal

hi kishore,
We use workbooks for excel formating,like font changes, lay out changes etc...
Workbooks into which queries are inserted are no different in appearance than other Excel workbooks.
They can be saved as files, copied, sent and (using Excel functions) edited however you like and even supplemented with other data.
Views are primarily used for BW Web Reports, it is similar to the concept of workbooks is for BEx.A local view can be accessed only within a workbook in which it was saved, where as a global view can be accessed globally in the system, it is not attached to a workbook. Only Global view can be used in BW Web Templates.
u can seee the help doc for more details:
http://help.sap.com/saphelp_nw04s/helpdata/en/0d/af12403dbedd5fe10000000a155106/content.htm
http://help.sap.com/saphelp_erp2004/helpdata/en/3a/89883989676778e10000000a11402f/content.htm
bye
shameem

Whats the difference between ALL and FIRST in Multi Inserting

SQL> Drop Table Sales;
Table dropped.
SQL> Drop Table Accounts;
Table dropped.
SQL> Drop Table Research;
Table dropped.
SQL> Create Table Sales As Select * From Emp;
Table created.
SQL> Create Table Accounts As Select * From Emp;
Table created.
SQL> Create Table Research As Select * From Emp;
Table created.
SQL> Truncate Table Sales;
Table truncated.
SQL> Truncate Table Accounts;
Table truncated.
SQL> Truncate Table Research;
Table truncated.
SQL> Select * From Sales;
no rows selected
SQL> Select * From Accounts;
no rows selected
SQL> Select * From Research;
no rows selected
SQL> Insert All
2 When Deptno=10 Then
3 Into Sales (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
4 When Deptno=20 Then
5 Into Accounts (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
6 When Deptno=30 Then
7 Into Research (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
8 Select * From Emp
9 .
SQL> /
16 rows created.
SQL> Select * From Sales;
 EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
 7782 CLARK MANAGER 7839 09-JUN-81 100 10
 7839 KING PRESIDENT 17-NOV-81 100 10
 7934 MILLER CLERK 7782 23-JAN-82 100 10
 7999 ABCDEFGH JOB 7839 09-FEB-06 100 0 10
4 rows selected.
SQL> Select * From Accounts;
 EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
 7901 SMITH CLERK 7902 17-DEC-80 100 20
 7566 JONES MANAGER 7839 02-APR-81 100 20
 7788 SCOTT ANALYST 7566 19-APR-87 100 20
 7876 ADAMS CLERK 7788 23-MAY-87 100 20
 7902 FORD ANALYST 7566 03-DEC-81 100 20
 123 20
6 rows selected.
SQL> Select * From Research;
 EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
 7499 ALLEN SALESMAN 7698 20-FEB-81 100 300 30
 7521 WARD SALESMAN 7698 22-FEB-81 100 500 30
 7654 MARTIN SALESMAN 7698 28-SEP-81 100 1400 30
 7698 BLAKE MANAGER 7839 01-MAY-81 100 30
 7844 TURNER SALESMAN 7698 08-SEP-81 100 0 30
 7900 JAMES MANAGER 7698 03-DEC-81 100 30
6 rows selected.
SQL> Truncate Table Sales;
Table truncated.
SQL> Truncate Table Accounts;
Table truncated.
SQL> Truncate Table Research;
Table truncated.
SQL> Insert First
2 When Deptno=10 Then
3 Into Sales (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
4 When Deptno=20 Then
5 Into Accounts (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
6 When Deptno=30 Then
7 Into Research (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
8 Select * From Emp
9 /
16 rows created.
SQL> Select * From Sales;
 EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
 7782 CLARK MANAGER 7839 09-JUN-81 100 10
 7839 KING PRESIDENT 17-NOV-81 100 10
 7934 MILLER CLERK 7782 23-JAN-82 100 10
 7999 ABCDEFGH JOB 7839 09-FEB-06 100 0 10
4 rows selected.
SQL> Select * From Accounts;
 EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
 7901 SMITH CLERK 7902 17-DEC-80 100 20
 7566 JONES MANAGER 7839 02-APR-81 100 20
 7788 SCOTT ANALYST 7566 19-APR-87 100 20
 7876 ADAMS CLERK 7788 23-MAY-87 100 20
 7902 FORD ANALYST 7566 03-DEC-81 100 20
 123 20
6 rows selected.
SQL> Select * From Research;
 EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
 7499 ALLEN SALESMAN 7698 20-FEB-81 100 300 30
 7521 WARD SALESMAN 7698 22-FEB-81 100 500 30
 7654 MARTIN SALESMAN 7698 28-SEP-81 100 1400 30
 7698 BLAKE MANAGER 7839 01-MAY-81 100 30
 7844 TURNER SALESMAN 7698 08-SEP-81 100 0 30
 7900 JAMES MANAGER 7698 03-DEC-81 100 30
6 rows selected.Both inserting insert the same records then whats the difference between ALL and FIRST clause in multi insert DML
Khurram Siddiqui
[email protected]

Hello
From the docs:
ALL
If you specify ALL, then Oracle evaluates each WHEN clause regardless of the results of the evaluation of any other WHEN clause. For each WHEN clause whose condition evaluates to true, Oracle executes the corresponding INTO clause list.
FIRST
If you specify FIRST, then Oracle evaluates each WHEN clause in the order in which it appears in the statement. For the first WHEN clause that evaluates to true, Oracle executes the corresponding INTO clause and skips subsequent WHEN clauses for the given row.
ELSE clause
For a given row, if no WHEN clause evaluates to true:
* If you have specified an ELSE clause, then Oracle executes the INTO clause list associated with the ELSE clause.
* If you did not specify an else clause, then Oracle takes no action for that row.
See Also:
"Multitable Inserts: Examples"
Restrictions on Multitable Inserts
* You can perform multitable inserts only on tables, not on views or materialized views.
* You cannot perform a multitable insert into a remote table.
* You cannot specify a table collection expression when performing a multitable insert.
* In a multitable insert, all of the insert_into_clauses cannot combine to specify more than 999 target columns.
* Multitable inserts are not parallelized in a Real Application Clusters environment, or if any target table is index organized, or if any target table has a bitmap index defined on it.
* Plan stability is not supported for multitable insert statements.
* The subquery of the multitable insert statement cannot use a sequence.
So given this the following example shows the difference:
SQL> CREATE TABLE dt_test_insert_base as select rownum id from dba_objects where rownum <=20
2 /
Table created.
SQL> CREATE TABLE dt_test_insert_1 (id number)
2 /
Table created.
SQL> CREATE TABLE dt_test_insert_2 (id number)
2 /
Table created.
SQL>
SQL> INSERT ALL
2 WHEN rownum <=15 THEN
3 INTO dt_test_insert_1 (id)
4 WHEN rownum >=10 THEN
5 INTO dt_test_insert_2 (id)
6 SELECT
7 ID
8 FROM
9 dt_test_insert_base
10 /
26 rows created.
SQL>
SQL> SELECT * from dt_test_insert_1
2 /
 ID
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
15 rows selected.
SQL> SELECT * from dt_test_insert_2
2 /
 ID
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
11 rows selected.
SQL>
SQL> TRUNCATE TABLE dt_test_insert_1
2 /
Table truncated.
SQL> TRUNCATE TABLE dt_test_insert_2
2 /
Table truncated.
SQL>
SQL> INSERT FIRST
2 WHEN rownum <=15 THEN
3 INTO dt_test_insert_1 (id)
4 WHEN rownum >=10 THEN --This condition is ignored until the value of id is > 15
5 INTO dt_test_insert_2 (id)
6 SELECT
7 ID
8 FROM
9 dt_test_insert_base
10 /
20 rows created.
SQL> SELECT * from dt_test_insert_1
2 /
 ID
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
15 rows selected.
SQL> SELECT * from dt_test_insert_2
2 /
 ID
 16
 17
 18
 19
 20HTH
David

Difference between relational integrity and data intigrity

hi
could anybody tell me
what is the difference between
relational integrity and data intigrity
tahnx
kals.

hi,
Data Integrity
Data integrity means, in part, that you can correctly and consistently navigate and manipulate the tables in the database. There are two basic rules to ensure data integrity; entity integrity and referential integrity.
The entity integrity rule states that the value of the primary key can never be a null value (a null value is one that has no value and is not the same as a blank). Because a primary key is used to identify a unique row in a relational table, its value must always be specified and should never be unknown. The integrity rule requires that insert, update, and delete operations maintain the uniqueness and existence of all primary keys.
The referential integrity rule states that if a relational table has a foreign key, then every value of the foreign key must either be null or match the values in the relational table in which that foreign key is a primary key.
What is a Relational Integrity?
A relational database contains tables of data which are related to each other. For example, articles are related to the author who wrote them, and conversely, authors are related to the articles they wrote. (Sounds obvious, and it is.) That's the relational part.
When we work with a relational database, we naturally expect that data in related tables stay related. For example, articles written by MartinB should always be related to MartinB and never be confused with articles written by any other author. That's the integrity part.
Relational Integrity is also called Referential Integrity, perhaps because the mechanism for ensuring integrity is implemented by the way the tables reference each other. Both terms are okay with me. I usually just say RI anyway.
Regards,
Sourabh

Hi, difference between database view and elementary search help

hi
pl. can any one tell me the difference between
database view and elementary search help,
and help view and elementary search help,
and database view and help view.
in the output i do not see any difference.
thanx.
rocky robo

HI
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). If new fields are included in the table or existing fields are deleted, the view is automatically adjusted to this change.
Database view:
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/36/74c0358373003ee10000009b38f839/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/36/74c0358373003ee10000009b38f839/frameset.htm</a>
Elementary search help:
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ee38446011d189700000e8322d00/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ee38446011d189700000e8322d00/frameset.htm</a>
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/8b/415d363640933fe10000009b38f839/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/8b/415d363640933fe10000009b38f839/frameset.htm</a>
Help view:
Help views are used if a view with an outer join is needed as selection method in a search help.
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/42/81c1351181b73fe10000009b38f839/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/42/81c1351181b73fe10000009b38f839/frameset.htm</a>
Regards,
Gunasree

Difference between 0FI_AP_30 and 0FI_AP_4 Data source

HI,
What is the difference between 0FI_AP_30 and 0FI_AP_4 Data source.
Thanks in advance

Hi,
In addition to above differences. Below is the functional difference between 0FI_AP_30 & 0FI_AP_4:
0FI_AP_4 gives you accounts payable line items in your report. Here GL account shows the balances of particular types of vendors/payables to which that particular GL account is been assigned.
And If subledger is activated in ECC, then by using 0FI_AP_30 you can get the break up of that particular GL balance according to vendors.
To make use of datasource 0FI_AP_30, subledger accounting must be activated in ECC.
Regards,
Pradip

Difference between Materialised view in 10g and 11g

Hi,
I am beginner . I want to know the difference between Materialized view between 10g and 11g. Is there any impact if the materialized view used in 10g gets upgraded to 11g ?
awaiting ur response.Please and Thanks

In addition to the documentation, you might want to look at the blog of Alberto Dell'Era:
http://www.adellera.it/blog/
Alberto writes quite a bit about materialized views, including this important change in 11GR2:
http://www.adellera.it/blog/2009/11/03/11gr2-materialized-view-logs-changes/

Please tell me the difference between CREATE OBJECT & CREATE DATA ,statements in CRMTECHNICAL

Please tell me the difference between CREATE OBJECT & CREATE DATA ,statements in CRMTECHNICAL

found it on my own . the best way to do this is use the RetriveLimitedHierTreeCommand with a search on the taxonomy table.

The difference between all Macs!

I'm a college student and was interested in buying a MacBook. I see there are many to choose from between the PRO and AIR along with different sizes and capacity. Is there anyone who can help explain the difference between all and which would be the best to use for school?
Thank you!

Without any useless jabber about which one is which. Please tell us what you plan on using the mac for?
i.e.- I myself am a graphic designer so therefore I naturally chose the MacBook Pro for their more advanced hardware rather than a MacBook or an Air.
For regular web-browsing, word documents, downloading etc a MacBook could possibly due you just fine. If portability is your primary concern and you have absolutely no use for a cd/dvd drive, then you could maybe look at an Air.
Photo, video editing, or pretty much running anything from the Adobe CS5.5 collections a MacBook Pro is almost a must.
Other than that, hard-drive space, extra memory(RAM), and yes even screen real-estate can alway be expanded.
13"- ultra light an portable regardless of which model you decide.
15"- you need more screen size for photo/video editing and do not intend to purchase an external monitor or small 1080p television.
17"- this might as well be a desktop. For college use these become somewhat of a trouble to carry around due to weight. But for when screen size is the most important.
I always encourage consumers to visit their local Mac retailer and ask questions. My Best Buy store has an Apple representative there and is very helpful. And if you have never used a Mac before, as with anything, there is a learning curve, but once you figure them out, you'll wonder why you never got one a long time ago.
Be sure to purchase a copy of Microsoft Office, and with ALL laptops, enquire about service plans that cover accidental since they cover dropping the product as manufacturing warranties DO NOT!
Former BBY Home Theater Associate 2010 - 2012. Now I work as a graphic designer in the print and prepress industry.

Difference between DEclaring Itab with DATA & TYpe Statement?

HI Friends,
What is the Difference between Declaring Itab with DATA & TYpe Statement?

Hi,
The Statements TYPES and DATA
Each ABAP program define its own data types using the statement.
TYPES dtype TYPE type ...
and declare its own variables or instance attributes of classes using the statement
DATA var {TYPE type} ...
Within the program or a class, you can also define local data types and variables within procedures. Local variables in procedures obscure identically-named variables in the main program or class.
When creating data types and data objects, there are a number of naming convention that also apply for other local program definitions, such as procedures. These are described in detail in the keyword documentation.
The Additions TYPE and LIKE
The additions TYPE type and LIKE dobj are used in various ABAP statements. The additions can have various meanings, depending on the syntax and context.
·        Definition of local types in a program
·        Declaration of data objects
·        Dynamic creation of data objects
·        Specification of the type of formal parameters in subroutines
·        Specification of the type of formal parameters in methods
·        Specification of the type of field symbols
TYPES: BEGIN OF struct,
         number_1 TYPE i,
         number_2 TYPE p DECIMALS 2,
       END OF struct.
DATA: wa_struct TYPE struct,
       number    LIKE wa_struct-number_2,
       date      LIKE sy-datum,
       time      TYPE t,
       text      TYPE string,
       company   TYPE s_carr_id.
This example declares variables with reference to the internal type STRUCT in the program, a component of an existing data object wa_struct, the predefined data object SY-DATUM, the predefined ABAP type t and STRING, and the data element S_CARR_ID from the ABAP Dictionary.
Reward Points if found helpfull..
Cheers,
Chandra Sekhar.

Difference between Manual Standby and Data Guard Broker..

hi,
could any let me know any usefull docs which help to understand the difference between manual dr and data guard broker?
thanks,

>
could any let me know any usefull docs which help to understand the difference between manual dr and data guard broker?
>
Without Data Guard Broker:
http://www.oracle.com/pls/db112/to_toc?pathname=server.112/e17022/toc.htm
With Data Guard Broker:
http://www.oracle.com/pls/db112/to_toc?pathname=server.112/e17023/toc.htm
See especially why you want to use the broker:
http://download.oracle.com/docs/cd/E11882_01/server.112/e17023/concepts.htm#i1013106
In short: You should have a good reason if you do not use the broker, because it is the officially recommended way to maintain Data Guard. It is even required for some features like Fast-Start Failover.
Kind regards
Uwe Hesse
http://uhesse.wordpress.com

Difference between passive and active data connection mode for FTP

Hi,
Does any body have the idea of passive and active data connection mode for the transport protocol FTP.
I have one server with FTP, I have to pick the data from this FTP to XI.
What is the difference between active and passive data connection? Does XI supports both the connections?
Thanks & Regards
Katta Mohan Reddy

Hi
According to SAP Note - 821267
Q: Does the File Adapter support active data connections when connecting to an FTP server?
A: Up to and including SP14, the File Adapter exclusively uses passive data connections. Starting with SP15, active connections will be available.
Difference between active and passive,
You can definitely refer to the site mentioned by Suraj
cheers
Sameer

Difference between materailized view and a table

hey hiii
i want to know what is a difference between a materialized view and a table i.e suppose i create a table A and another table B on table A i have created a trigger which will upload all the changes made in A ie insert,update or delete so whether this will perform all the action that a materialized view can perform on A or is there any difference between them
thks

I'll add to Nicolas' answer that the MV maintenance does have access to mechsnisms other than row-by-row replication of the trigger-based type. Direct path inserts to the base table are very efficiently propagated to the MV, as are partition-based DDL operations. Also MV's come with optional query rewrite built in (you need 10g+ to query rewrite to a non-MV data set), and scheduled refresh so you can defer maintenance of the data set until later.
MV maintenance can be less efficient though -- you may know something about the data and the way that it changes that allows you to write more efficient meintenance than the MV code.

Difference between all views in data dic

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