ABAP---Q&A --2

[Spoorthi]

What is a table cluster?


A table cluster combines several logical tables in the
ABAP/4 dictionary. Several logical rows from different cluster tables are
brought together in a single physical record. The records from the cluster
tables assigned to a cluster are thus stored in a single common table in the
database.

[Spoorthi]

HOW CAN WE ACCESS THE CORRECTION AND TRANSPORT SYSTEM?


Each time you create a new object or change an
existing object in the ABAP/4 dictionary, you branch automatically to the
workbench organizer or correction and transport system

[Spoorthi]

WHICH OBJECTS ARE INDEPENDENT TRANSPORT OBJECTS?


Domains, data elements, tables, technical settings for tables,
secondary indexes for transparent tables, structures, views, matchcode objects,
matchcode Ids, lock objects.





HOW IS CONVERSION OF DATA TYPES DONE BETWEEN ABAP/4 &
DB LAYER?


Conversion between ABAP/4 data types and the database
layer is done within the database interface.





contunues tomarow

[Vision]

[img]smileys/smiley32.gif[/img][img]smileys/smiley32.gif[/img][img]smileys/smiley32.gif[/img] spoorthi

[aaronpraneeth]

heloo..


just now i joined these group.and i feel i landed oon the right path.spoorthy thanku for the stuff ur providing imp inf on sap. i completed my btech in 2004 and done my training in sap abap and looking for a good opening.and i find this page very usefull 2 me and very much delighted to see how these stuff is helping many people and very much glad to be a part of this stuff.

[Spoorthi]

[img]smileys/smiley32.gif[/img][img]smileys/smiley32.gif[/img][img]smileys/smiley32.gif[/img]all the best

[madmadman]

HEY spoorthi i was unable to get any thing from this discussion


but as you know madmadman i inquired about SAP


yaar i have a request you start from basic so that dumbo ppl like me can understand correctly that what are we talking of l


start off like generation of languages in c


now for unknown i have som info that i collected SAP is installation software that connects the firms and company officesall arround the globe like through internet all work in 1 part of company is updated to other parts as well now doing that is SAP its "SERVICE ACESS POINT"


i guess


so spooorthi am i correct

[Spoorthi]

HOW IS THE CONVERSION OF DATATYPES DONE BETWEEN ABAP/4 &
EXTERNAL LEVEL?


Conversion between the external layer and the ABAP/4 layer
is done in the SAP dialog manager DYNP.





WHAT ARE THE DATA TYPES OF THE EXTERNAL LAYER?


ACCP, CHAR, CLNT, CUKY, CURR, DATS, DEC, FLTP, INT1,
INT2, INT4, LANG, LCHR, LRAW, NUMC, PREC, QUAN, RAW, TIMS, UNIT, VARC

[Spoorthi]

WHAT ARE THE DATA TYPES OF THE ABAP/4?


Possible ABAP/4 data types:


C: character


D: date, format YYYYMMDD.


F: floating point number in double precision (8 bytes)


I: integer


N: number character string of arbitary length


P: amount or counter field (packed, implementaion depends on
hardware platform)


S: time stamp YYYYMMDDHHMMSS


T: time of day HHMMSS


V: character string of variable length, length is given in
the first two bytes.


X: hexadecimal (binary) storage

[Spoorthi]

HOW CAN WE SET THE TABLESPACES AND EXTENT SIZES?


You can specify the extent sizes and the table space
(physical storage area in the database) in which a transparent table is to be
stored by setting the size category and data class.

[Spoorthi]

WHAT IS THE FUNCTION OF THE CORRECTION SYSTEM?


The correction system manages changes to internal system
components such as objects of the ABAP/4 dictionary.








WHAT ARE LOCAL OBJECTS?


Local objects (dev class $TMP) are independent of correction
and transport system.

[Spoorthi]

WHAT IS A DEVELOPMENT CLASS?


Related objects from the ABAP/4 repository are assigned to
the same development class. This enables you to correct and transport related
objects as a unit.








WHAT IS A DATA DICTIONARY?


Data dictionary is a central source of data management
system. Its main functions are to support the certain management of data
definitions. It has details about


--What data is contained?


--What are the attributes of the data?


--What is the relationship existing between the various data
elements?

[Spoorthi]

WHAT FUNCTIONS DOES A DATA DICTIONARY PERFORM?


In a data management system, the principal functions
performed by the data dictionary are


Management of data definitions


Provision of information for evaluation


Support for software development


Support from documentation


Ensuring that the data definitions are flexible and up to
date.








WHAT ARE THE FEATURES OF ABAP/4 DICTIONARY?


The most important features are:


Integrated to ABAP/4 development workbench


Active in the runtime environment