topic Re: structure in Application Development and Automation Discussions

structure

Former Member — Tue, 18 Sep 2007 05:39:31 GMT

Hi,

What is the difference between append structure and include structure ?

Thanks,

Vinay

Re: structure

Former Member — Tue, 18 Sep 2007 05:42:18 GMT

if u r talking abt append and insert commands then

append is used while v have header line in the internal table.

insert command is used when v have internal table without header line.

1. Append Structures

Append structures can only be assigned to a single table.

Append structures are created in the custome rnamespace ( ZZ or YY)

In case of new versions of the standard table during upgrade, the append structures are automatically appended to the new version of the standard table

Append structures can not be used with cluster and pool tables

Append structures are created in transaction SE11. Display the standard table fields and press the Append structure button.

When you press the button, SAP sugests a name for the new append structure. After you has accepted the name,

a screen will be shown where you can enter the new fields.

2. Customizing Includes

Some of the SAP standard tables contains special include statements called Customizing includes. In contrast to Append structures,

Note that customizing includes are created by SAP, but the customer supply the fields for the include.

Customizing includes begin with CI_ and is part of the customer namespace

One Customizing include can be inserted into more than one table.

You can find Customizing includes in SE11 under structures.

Try to take a look at table RKPF which uses the Customizing include CI_COBL (In an IDES system).

Next try to add a field to CI_COBL, and activate it. If you go back to table RKPF you will se that your new field has been added.

Re: structure

Former Member — Tue, 18 Sep 2007 05:42:58 GMT

hi Vinay,

Append structure is used for One table only.

Include structure is used for n no. of tables.

what ever the changes has been made for include structure they will be reflected to all the tables which are using that perticular structure.

Reward points if useful

Cheers,

Chandra

Re: structure

Former Member — Tue, 18 Sep 2007 05:43:55 GMT

1. .INCLUDE

(which appears in se11 in many tables.)

2. Well,

thats nothing but a technique

of BUNCHING / GROUPING fields

(for ease of re-use)

(instead of again and again

specifying those SET of FIELDS,

in more than 1 table)

(we can as well give each field, field-by-field,

it won't make any difference in database table)

3. However,

Append structure

is FACILITY PROVIDED BY SAP

for customer enhancment of tables.

It behaves differently when

some upgrade is done in that table

by sap itself.

In such case,

when the upgrade occurs,

first the SAP fields (which are added in the standard table)

are first included in the sequence of fields,

AFTER THAT,

our APPEND structure fields,

are appended !!!

Check this sap help for append structure

http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eb61446011d189700000e8322d00/content.htm

Check this sap help for include structure

http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eb54446011d189700000e8322d00/content.htm

Re: structure

Former Member — Tue, 18 Sep 2007 05:45:14 GMT

appned structure allows you to add more fields to a stable structure....you have to add fields 1 by 1 in this case.

include structure includes another structure to your existing structure.

in this case the entire structure which has been included gets included in the exixting structuire.

reward if helpful

vivekanand

Re: structure

Former Member — Tue, 18 Sep 2007 05:49:00 GMT

hi,

1. append structure is not a modification.

include structure is a modification.

2. append structure is possible if structure is marked and can be enhanced by sap.

include structure is modified if u have a access key.

3. append structure doesn't change the underlying database table.

include structure changes structure of database table.

4. append structures can be assigned to a single table.

include structures can be assigned to multiple tables.

5.append structures can't be use with pool n cluster tables.

if helpful reward some points.

with regards,

Suresh Aluri.

Re: structure

Former Member — Tue, 18 Sep 2007 05:54:30 GMT

INCLUDE STRUCTURE

INCLUDE { {TYPE struc_type} | {STRUCTURE struc} }

[AS name [RENAMING WITH SUFFIX suffix]].

This statement must be used only within a structure definition with the additions BEGIN OF and END OF in the statements TYPES, DATA, CLASS-DATA, and STATICS. It copies all the components of the structured type struc_type or the structure struc at the given position into the current structure definition. The components are created at the same level as the INCLUDE statement. The INCLUDE statement does not create any substructure.

struc_type can be a local (within program), structured type or a structure from the ABAP Dictionary. struc must be a structure of the same program.

Through the specification of a name name after the AS addition, either all the components of the bound structure struc_type or struc are addressed together through the name name or individual components can be addressed using the structure component selector (-).

Using the RENAMING WITH SUFFIX addition, each indivdual component is renamed by adding on the suffix suffix. Here, a structure can be copied several times. suffix must be specified directly.

Outside of ABAP objects, flat structures, database tables, or views of the ABAP Dictionary can also be specified for struc with the STRUCTURE addition

In constant structures declared with CONSTANTS, no components can be included using INCLUDE because no start values can be assigned to these.

Append structure

Append structures allow you to attach fields to a table without actually having to modify the table itself. You can use the fields in append structures in ABAP programs just as you would any other field in the table.

Append structures allow you to enhance tables by adding fields to them that are not part of the standard. With append structures; customers can add their own fields to any table or structure they want.

Append structures are created for use with a specific table. However, a table can have multiple append structures assigned to it

The customer creates append structures in the customer namespace. The append structure is thus protected against overwriting during an upgrade. The fields in the append structure should also reside in the customer namespace, that is the field names should begin with ZZ or YY. This prevents name conflicts with fields inserted in the table by SAP

Reward if usefull