Difference between Include and Append in structure

[Former Member]

Hi all,

I have a structure e.g ZCSTRUCTURE and ZCSTRUCTURE1 in DDIC.

Now i want to include structure ZCSTRUCTURE1 to ZCSTRUCTURE in DDIC.

I can do it in two ways.

1. Include structure(.include)

2.Append structure

What is the difference between these two.

Regards,

[Former Member]

Hi,

Append structures

are used for enhancements that are not included in the standard. This includes special developments, country versions and adding customer fields to any tables or structures.

An append structure is a structure that is assigned to exactly one table or structure. There can be more than one append structure for a table or structure.

The following enhancements can be made to a table or structure TAB with an append structure:

· Insert new fields in TAB,

· Define foreign keys for fields of TAB that already exist,

· Attach search helps to fields of TAB that already exist,

These enhancements are part of the append structure, i.e. they must always be changed and transported with the append structure.

When a table or structure is activated, all the append structures of the table are searched and the fields of these append structures are added to the table or structure. Foreign keys and search help attachments added using the append structure are also added to the table. If an append structure is created or changed, the table or structure assigned to it is also adjusted to these changes when the append structure is activated.

Since the order of the fields in the ABAP Dictionary can differ from the order of the fields on the database, adding append structures or inserting fields in such append structures does not result in a table conversion.

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.

nclude Structure :

Here we have to add an Existing Structure to a Table .. So it can be reused.

We cannot Include structure to Standard Table

It can be inserted anywhere in the Table.

Regards,

Pritha.

Reward if helpful

[Former Member]

Hi Somya,

Check below thread

/message/3504101#3504101 [original link is broken]

Regards,

Atish

[Former Member]

HI

APPEND: enhance table without registration. You can use the added fields only in case of this table.

.INCLUDE: you can use tha include to add it to more tables.

Both cases you have to start with ZZ....unless you implement an OSS note.

I suggest to use CI_XXXXX structure, which is a customer include. In this case you have to create a project in transaction CMOD and activate it. Probable you can find some documentation about the purpose of the customer include here.

Check the links -

/message/1479212#1479212 [original link is broken]

Regards

Pavan

[Former Member]

Hi,

Append structures

are used for enhancements that are not included in the standard. This includes special developments, country versions and adding customer fields to any tables or structures.

An append structure is a structure that is assigned to exactly one table or structure. There can be more than one append structure for a table or structure.

The following enhancements can be made to a table or structure TAB with an append structure:

· Insert new fields in TAB,

· Define foreign keys for fields of TAB that already exist,

· Attach search helps to fields of TAB that already exist,

These enhancements are part of the append structure, i.e. they must always be changed and transported with the append structure.

When a table or structure is activated, all the append structures of the table are searched and the fields of these append structures are added to the table or structure. Foreign keys and search help attachments added using the append structure are also added to the table. If an append structure is created or changed, the table or structure assigned to it is also adjusted to these changes when the append structure is activated.

Since the order of the fields in the ABAP Dictionary can differ from the order of the fields on the database, adding append structures or inserting fields in such append structures does not result in a table conversion.

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.

nclude Structure :

Here we have to add an Existing Structure to a Table .. So it can be reused.

We cannot Include structure to Standard Table

It can be inserted anywhere in the Table.

Regards,

Pritha.

Reward if helpful