ABAP---Q&A --2

[Spoorthi]

WHAT ARE THE AGGREGATE OBJECTS IN THE DATA DICTIONARY?
Views
Match codes
Lock objectsEdited by: keerthi

[Spoorthi]

IN THE ABAP/4 DICTIONARY TABLES CAN BE DEFINED INDEPENDENT OF THE UNDERLYING DATA BASE (TRUE/FALSE)?
True
A FIELD CONTAINING CURRENCY AMOUNTS (DATA TYPE CURR) MUST BE ASSIGNED TO A REFERENCE TABLE AND A REFERENCE FIELD.EXPLAIN
As a reference table, a system table containing all the valid currencies is assigned or any other table, which contains a field with the currency key format. This field is called as reference field.
The assignment of the field containing currency amounts to the reference field is made at runtime. The value in the reference field determines the currency of the amount.
Edited by: keerthi

[Spoorthi]

hi frds sorry for the delay.........check daily





A FIELD CONTANING QUANTITY AMOUNTS (data type QUAN) MUST BE
ASSIGNED TO A REFERENCE TABLE AND A REFERENCE FIELD. EXPLAIN?





As a reference table, a system table containing all the
valid quantity units is assigned or any other tale, which contains a field with
the format for quantity units (data type UNIT). This field is called as
reference field.


The assignment of the field containing quantity
amounts to the reference field is made at runtime. The value in the reference
field determines the quantity unit of amount.





WHAT IS TABLE ATTRIBUTE?


The table attributes determine who is responsible for
maintaining a table and which types of access are allowed for the table. The most
important table attributes are:


Delivery class


Table maintenance allowed


Activation type.

[Spoorthi]

WHAT IS THE SIGNIFICANCE OF TECHNICAL SETTINGS (specified
while creating a table in the data dictionary)?


By specifying technical settings we can control how database
tables are created in the database.


The technical settings allows us to


Optimize storage space requirements


Table access behavior


Buffering required


Changes to entries logged.











WHAT IS THE SIGNIFICANCE OF DELIVERY CLASS?


The delivery class controls the degree to which the SAP or
the customer is responsible for table maintenance.


Whether SAP provides the table with or without contents.


Determines the table types.


Determines how the table behaves when it is first installed.
At upgrade, when it is transported, and when a client copy is performed.





WHAT IS THE MAXIMUM NUMBER OF STRUCTURES THAT CAN BE
INCLUDED IN A TABLE OR STRUCTURE?


Nine

[Spoorthi]

WHAT ARE THE TWO METHODS OF MODIFYING SAP STANDARD TABLES?


Append structures and


Customizing includes.





WHAT IS THE DIFFERENCE BETWEEN A SUBSTURUCTURE AND AN APPEND
STRUCTURE?


In case of a substructure, the reference originates in the
table itself. In the form of a statement. Include


In case of an append structure, the table itself
remains unchanged and the reference originates in the append structure.

[Spoorthi]

TO HOW MANY TABLES CAN AN APPEND STRUTURE BE ASSIGNED?


One





IF A TABLE THAT IS TO BE EXTENDED CONTAINS A LONG FIELD, WE
CANNOT USE APPEND STRUTURES.WHY?


Long fields in a table must always be located in the end, as
the last field of the table. If a table has an append structure the append line
must also be on the last field of the table.





CAN WE INCLUDE CUSTOMIZING INCLUDE OR AN APPEND STRUCTURE
WITH POOLED OR CLUSTER TABLES?


No

[Spoorthi]

WHAT ARE THE TOW WAYS FOR RESRICTING THE VALUE FOR ADOMAIN?


By specifying fixed values


By stipulating a value table





STRUCTURES CAN CONTAIN DATA ONLY DURING THE RUN TIME OF
PROGRAM


True





WHAT ARE BASE TABLES OF AN AGGREGATE OBJECT?


The tables making up an aggregate object (primary and
secondary) are called aggregate object.





THE DATA OF VIEW IS NOT PHYSICALLYSTORED STORED, BUT DERIVED
FROM ONE OR MORE TABLES.


True





WHAT ARE THE 2 OTHER TYPES OF VIEWS, WHICH ARE NOT ALLOWED
IN RELEASE 3.0?


Structure views.


Entity views.

[Spoorthi]

WHAT IS MATCH CODE?


Match code is a tool to help us to search for data records
in the system. Match codes are an efficient and user – friendly search aid
where key of a record is unknown.





WHAT ARE THE TWO LEVELS IN DEFIFNING A MATCH CODE?


Match code object


Match code id.

[Spoorthi]

WHAT IS MAXIMUM NUMBER OF MATCH CODE ID’S THAT CAN BE
DEFINED FOR ONE MATCH CODE OBJECT?


36. A match code id is a one character ID that can be a
letter or a number.





CAN WE DEFINE OUR OWN MATCH CODE ID’S FOR SAP MATCHCODES?


Yes, the numbers 0 to 9 are reserved for us to create our
own match code ID for a SAP defined object.

[Spoorthi]

WHAT IS AN UPDATE TYPE WITH REFERENCE TO A MATCH CODE ID?


If the data is one of the base tables of a match code
ID changes. The match code data has to be updated. The update type stipulates
when the match code is to be updated and how it is to be done. The update type
also specifies which method is to be used for building match codes. You must
specify the update type when you define a match code ID.

[Spoorthi]

CAN MATCH CODE OBJECT CONTAIN IDS WITH DIFFERENT UPDATE
TYPES?


Yes





WHAT ARE THE UPDATE TYPES POSSIBLE?


The following update types are possible:


Update type A: the match code data is updates asynchronously
to data base changes.


Update type S: the match code data is updated synchronously
to data base changes.


Update type P: the application program updates the match
code data.


Update type I: access to the match code data is managed
using a database view.


Update type K: access to the match code is achieved by
calling a function module.